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515
FNUS54 KMRX 201940
FWFMRX
Fire Weather Planning Forecast for East Tennessee...Southwest
Virginia...and Extreme Southwest North Carolina
National Weather Service Morristown TN
340 PM EDT Tue May 20 2025
.DISCUSSION...
A cold front will approach the area on Tuesday evening with
widespread rain and thunderstorms. Some thunderstorms may be severe
with the potential for damaging winds, hail, and tornadoes. Cooler
weather is expected for the second half of the work week.
VAZ001-212045-
Lee-
Including the city of Rose Hill
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 59-64 (+2) 72-77 (-8) 50-55 66-71
RH % (24h trend) 95-100 (+1) 40-45 (-15) 87-92 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 W 13
PM 20FT Wnd (mph) S 11 W 13 W 13 W 13
Transport Wnd (mph) S 10 W 26 W 10 W 24
Mixing Hgt(ft-agl) 330 5380 410 6430
Vent Rate (mph-ft) 3300 139880 4100 154320
Max Dispersion Early 6 Very Poor 90 Good 13 Gen Poor 118 Very Good
Max Dispersion Late 8 Poor 124 Very Good21 Fair 137 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 4 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 20 20 50
Precip Type Tstms Showers Showers Showers
Precip Duration 3 1 1 1
Precip Amount 0.61 0.02 0.01 0.04
Precip Begin 8 PM Continuing 2 AM Continuing
Precip End Continuing 2 PM Continuing Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 40s. West winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 60s. Minimum RH
43 percent. Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 60s. Minimum RH 46 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. Light
winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 67 percent.
Light winds.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 67 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs around 70. Minimum RH 62 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ002-212045-
Wise-
Including the cities of Big Stone Gap, Norton, Wise, Coeburn,
Appalachia, and Pardee
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 58-63 (+3) 69-74 (-9) 49-54 62-67
RH % (24h trend) 95-100 (+3) 43-48 (-12) 83-88 50-55
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 W 17
PM 20FT Wnd (mph) S 12 W 16 W 16 W 16
Transport Wnd (mph) S 9 W 25 W 16 W 26
Mixing Hgt(ft-agl) 170 4910 290 6500
Vent Rate (mph-ft) 1530 122750 4640 169000
Max Dispersion Early 5 Very Poor 79 Good 17 Gen Poor 132 Very Good
Max Dispersion Late 7 Poor 112 Very Good28 Fair 157 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 3 4
Max LVORI Late 8 1 4 1
Precip Chance (%) 90 30 20 60
Precip Type Tstms Tstms Showers Showers
Precip Duration 3 1 1 2
Precip Amount 0.43 0.02 0.01 0.05
Precip Begin 8 PM Continuing 2 AM Continuing
Precip End Continuing 2 PM Continuing Continuing
Chance of Thunder (%) 70 30 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 40s. West winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs around 60. Minimum RH 45 percent.
West winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 60s. Minimum RH 47 percent. West
winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 50. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 60s. Minimum RH 69 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. Southwest winds
less than 10 mph.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 60s. Minimum RH 68 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. West winds less
than 10 mph.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 60s. Minimum RH 65 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ005-212045-
Scott VA-
Including the city of Hiltons
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 60-65 (+3) 73-78 (-8) 51-56 66-71
RH % (24h trend) 95-100 (+1) 42-47 (-11) 85-90 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 12 W 16
PM 20FT Wnd (mph) S 11 W 14 W 16 W 14 G22
Transport Wnd (mph) SE 7 W 24 W 10 W 24
Mixing Hgt(ft-agl) 260 5340 330 6290
Vent Rate (mph-ft) 1820 128160 3300 150960
Max Dispersion Early 5 Very Poor 84 Good 13 Gen Poor 128 Very Good
Max Dispersion Late 7 Poor 115 Very Good20 Gen Poor 151 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 3 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 20 20 50
Precip Type Tstms Tstms Showers Showers
Precip Duration 3 1 1 1
Precip Amount 0.57 0.02 0.01 0.04
Precip Begin 8 PM Continuing 2 AM Continuing
Precip End Continuing 2 PM Continuing Continuing
Chance of Thunder (%) 70 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 60s. Minimum RH
43 percent. West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny. Highs in the upper 60s. Minimum RH
46 percent. Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. Light
winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 67 percent.
Light winds.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the lower 70s. Minimum RH 68 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
62 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ006-212045-
Russell-
Including the cities of Hansonville, Lebanon, Dye, Castlewood,
Honaker, and Rosedale
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Pcldy Pcldy
Temp (24h trend) 59-64 (+5) 71-76 (-7) 50-55 63-68
RH % (24h trend) 95-100 (+6) 42-47 (-13) 83-88 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 14 W 20
PM 20FT Wnd (mph) S 11 W 17 W 18 W 17
Transport Wnd (mph) SE 8 W 24 W 12 W 25
Mixing Hgt(ft-agl) 250 5270 360 6950
Vent Rate (mph-ft) 2000 126480 4320 173750
Max Dispersion Early 5 Very Poor 78 Good 13 Gen Poor 138 Very Good
Max Dispersion Late 7 Poor 112 Very Good24 Fair 165 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 6 3 3
Max LVORI Late 7 1 4 1
Precip Chance (%) 90 30 20 60
Precip Type Tstms Tstms Showers Showers
Precip Duration 3 1 1 2
Precip Amount 0.51 0.02 0.01 0.06
Precip Begin 8 PM Continuing 2 AM Continuing
Precip End Continuing 2 PM Continuing Continuing
Chance of Thunder (%) 60 30 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 40s. West winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 60s. Minimum RH
44 percent. West winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Northwest
winds less than 10 mph.
.SATURDAY...Partly sunny. Highs in the mid 60s. Minimum RH
46 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 50. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 60s. Minimum RH 67 percent.
East winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Southwest winds
less than 10 mph.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the lower 70s. Minimum RH 67 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Southwest winds
less than 10 mph.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 60s. Minimum RH 64 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ008-212045-
Washington VA-
Including the cities of Benhams, Bristol VA, and Abingdon
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Pcldy Pcldy
Temp (24h trend) 58-63 (+3) 72-77 (-6) 49-54 65-70
RH % (24h trend) 95-100 (+3) 46-51 (-13) 88-93 51-56
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 W 18
PM 20FT Wnd (mph) SE 11 W 16 W 17 W 16
Transport Wnd (mph) SE 8 W 25 W 12 W 25
Mixing Hgt(ft-agl) 330 5320 450 6460
Vent Rate (mph-ft) 2640 133000 5400 161500
Max Dispersion Early 7 Poor 83 Good 14 Gen Poor 132 Very Good
Max Dispersion Late 9 Poor 120 Very Good19 Gen Poor 160 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 3 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 30 20 50
Precip Type Tstms Tstms Showers Showers
Precip Duration 2 1 1 1
Precip Amount 0.49 0.05 0.01 0.06
Precip Begin 8 PM Continuing 2 AM Continuing
Precip End Continuing 2 PM Continuing Continuing
Chance of Thunder (%) 60 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 40s. West winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 60s. Minimum RH
47 percent. West winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Light
winds.
.SATURDAY...Partly sunny. Highs in the upper 60s. Minimum RH
49 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 50. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 70 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the lower 70s. Minimum RH 71 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Southwest winds
less than 10 mph.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs around 70. Minimum RH 68 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ018-212045-
Johnson-
Including the cities of Doeville, Mountain City, Neva,
Shady Valley, Trade, and Laurel Bloomery
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Pcldy Pcldy
Temp (24h trend) 57-62 (+3) 71-76 (-5) 48-53 64-69
RH % (24h trend) 95-100 (+5) 45-50 (-8) 85-90 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 12 G21 W 17 G24
PM 20FT Wnd (mph) SE 6 W 17 W 18 W 17 G24
Transport Wnd (mph) SE 10 W 28 W 18 W 29
Mixing Hgt(ft-agl) 210 4420 430 5750
Vent Rate (mph-ft) 2100 123760 7740 166750
Max Dispersion Early 8 Poor 88 Good 26 Fair 111 Very Good
Max Dispersion Late 14 Gen Poor 108 Very Good32 Fair 142 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 3 4
Max LVORI Late 7 1 4 1
Precip Chance (%) 80 20 0 50
Precip Type Tstms Tstms None Showers
Precip Duration 3 1 1
Precip Amount 0.40 0.05 0.00 0.05
Precip Begin 8 PM Continuing 8 AM
Precip End Continuing 2 PM Continuing
Chance of Thunder (%) 60 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 40s. West winds 5 to 15 mph.
.FRIDAY...Mostly sunny. Highs in the lower 60s. Minimum RH
47 percent. West winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Northwest
winds less than 10 mph.
.SATURDAY...Partly sunny. Highs in the upper 60s. Minimum RH
47 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the upper 40s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 66 percent.
Light winds.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the lower 70s. Minimum RH 67 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. Southwest winds
less than 10 mph.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs around 70. Minimum RH 67 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ047-212045-
Southeast Carter-
Including the city of Hampton
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 57-62 (+5) 69-74 (-7) 49-54 62-67
RH % (24h trend) 95-100 (+3) 46-51 (-13) 84-89 48-53
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 14 G23 W 20 G29
PM 20FT Wnd (mph) S 8 W 19 G26 W 20 W 18 G28
Transport Wnd (mph) SW 13 W 29 W 21 W 29
Mixing Hgt(ft-agl) 180 4530 280 5690
Vent Rate (mph-ft) 2340 131370 5880 165010
Max Dispersion Early 7 Poor 78 Good 23 Fair 101 Very Good
Max Dispersion Late 10 Poor 116 Very Good21 Fair 144 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 3 4
Max LVORI Late 7 1 4 1
Precip Chance (%) 80 20 0 40
Precip Type Tstms Tstms None Showers
Precip Duration 3 1 1
Precip Amount 0.39 0.05 0.00 0.05
Precip Begin 8 PM Continuing 8 AM
Precip End Continuing 2 PM Continuing
Chance of Thunder (%) 60 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 40s. West winds 5 to 15 mph.
.FRIDAY...Mostly sunny. Highs in the upper 50s. Minimum RH
49 percent. West winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Northwest
winds less than 10 mph.
.SATURDAY...Partly sunny. Highs in the mid 60s. Minimum RH
47 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows
around 50. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs around 70. Minimum RH 63 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the lower 70s. Minimum RH 68 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. Southwest winds
less than 10 mph.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 60s. Minimum RH 69 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ045-212045-
Unicoi-
Including the cities of Erwin, Unicoi, and Limestone Cove
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 58-63 (+2) 69-74 (-7) 50-55 63-68
RH % (24h trend) 95-100 (+5) 47-52 (-12) 83-88 49-54
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 12 G23 W 19 G27
PM 20FT Wnd (mph) S 11 W 17 G24 W 20 W 17 G26
Transport Wnd (mph) S 13 W 28 W 15 W 29
Mixing Hgt(ft-agl) 160 4460 250 5830
Vent Rate (mph-ft) 2080 124880 3750 169070
Max Dispersion Early 7 Poor 79 Good 23 Fair 96 Good
Max Dispersion Late 7 Poor 106 Very Good18 Gen Poor 147 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 3 4
Max LVORI Late 6 1 4 1
Precip Chance (%) 80 20 0 40
Precip Type Tstms Tstms None Showers
Precip Duration 3 1 1
Precip Amount 0.42 0.04 0.00 0.06
Precip Begin 8 PM Continuing 8 AM
Precip End Continuing 11 AM Continuing
Chance of Thunder (%) 60 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 40s. West winds 5 to 15 mph.
.FRIDAY...Mostly sunny. Highs around 60. Minimum RH 49 percent.
West winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Northwest
winds less than 10 mph.
.SATURDAY...Partly sunny. Highs in the mid 60s. Minimum RH
47 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 63 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 68 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Southwest winds
less than 10 mph.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 60s. Minimum RH 70 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ043-212045-
Southeast Greene-
Including the city of Cedar Creek
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 58-63 (0) 69-74 (-9) 51-56 64-69
RH % (24h trend) 95-100 (+3) 42-47 (-10) 82-87 46-51
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 14 G24 W 17 G28
PM 20FT Wnd (mph) S 11 W 16 G26 W 17 G26 W 16 G28
Transport Wnd (mph) S 9 W 26 W 14 W 26
Mixing Hgt(ft-agl) 50 4570 90 5640
Vent Rate (mph-ft) 450 118820 1260 146640
Max Dispersion Early 4 Very Poor 85 Good 10 Poor 82 Good
Max Dispersion Late 5 Very Poor 111 Very Good17 Gen Poor 132 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 3 4
Max LVORI Late 7 1 4 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.47 0.00 0.00 0.06
Precip Begin 8 PM 8 AM
Precip End Continuing Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 40s. West winds 5 to 15 mph.
.FRIDAY...Mostly sunny. Highs in the lower 60s. Minimum RH
46 percent. Northwest winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Northwest
winds less than 10 mph.
.SATURDAY...Partly sunny. Highs in the mid 60s. Minimum RH
47 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 63 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Southwest winds less than 10 mph.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 67 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. South winds less
than 10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the upper 60s. Minimum RH 69 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ041-212045-
Cocke Smoky Mountains-
Including the city of Hartford
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 59-64 (0) 70-75 (-10) 52-57 66-71
RH % (24h trend) 95-100 (+5) 41-46 (-7) 79-84 44-49
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 20 W 25
PM 20FT Wnd (mph) SE 16 W 25 W 25 W 25
Transport Wnd (mph) SW 10 W 28 W 15 W 28
Mixing Hgt(ft-agl) 220 4700 270 5730
Vent Rate (mph-ft) 2200 131600 4050 160440
Max Dispersion Early 7 Poor 94 Good 17 Gen Poor 96 Good
Max Dispersion Late 9 Poor 118 Very Good20 Gen Poor 138 Very Good
Category Day 1 5 1 5
Max LVORI Early 4 5 3 3
Max LVORI Late 6 1 3 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.58 0.00 0.00 0.04
Precip Begin 9 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 60s. Minimum RH
46 percent. Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 60s. Minimum RH 47 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 50s. Light winds.
.SUNDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the lower 70s. Minimum RH 61 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 68 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows around 60. Southwest winds less
than 10 mph.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs around 70. Minimum RH 70 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ074-212045-
Sevier Smoky Mountains-
Including the cities of Elkmont and Gatlinburg
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 58-63 (0) 67-72 (-10) 50-55 62-67
RH % (24h trend) 94-99 (+3) 44-49 (-6) 82-87 50-55
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 20 W 23 G31
PM 20FT Wnd (mph) S 16 W 21 W 21 W 23 G31
Transport Wnd (mph) S 14 W 26 W 17 W 28
Mixing Hgt(ft-agl) 50 3810 50 5150
Vent Rate (mph-ft) 700 99060 850 144200
Max Dispersion Early 8 Poor 65 Good 12 Poor 74 Good
Max Dispersion Late 8 Poor 89 Good 13 Gen Poor 123 Very Good
Category Day 1 4 1 5
Max LVORI Early 5 6 3 4
Max LVORI Late 6 1 4 2
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.72 0.00 0.00 0.04
Precip Begin 9 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 40s. West winds 5 to 15 mph.
.FRIDAY...Sunny. Highs around 60. Minimum RH 50 percent.
Northwest winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Northwest
winds less than 10 mph.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 60s. Minimum RH 50 percent. North
winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Northwest
winds less than 10 mph.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 65 percent.
South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Southwest winds less than 10 mph.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 60s. Minimum RH 73 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Southwest winds
less than 10 mph.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 60s. Minimum RH 74 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ072-212045-
Blount Smoky Mountains-
Including the city of Cades Cove
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 60-65 (-2) 71-76 (-10) 53-58 67-72
RH % (24h trend) 95-100 (+10) 43-48 (-7) 82-87 50-55
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 16 G23 W 17 G26
PM 20FT Wnd (mph) S 14 W 16 G23 W 16 W 18 G26
Transport Wnd (mph) SW 13 W 24 W 10 W 24
Mixing Hgt(ft-agl) 240 4650 220 5060
Vent Rate (mph-ft) 3120 111600 2200 121440
Max Dispersion Early 8 Poor 72 Good 8 Poor 62 Good
Max Dispersion Late 10 Poor 104 Very Good9 Poor 105 Very Good
Category Day 1 4 1 5
Max LVORI Early 4 5 3 4
Max LVORI Late 6 1 4 2
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.84 0.00 0.00 0.04
Precip Begin 8 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Sunny. Highs in the mid 60s. Minimum RH 48 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs around 70. Minimum RH 50 percent. Light
winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.SUNDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the mid 70s. Minimum RH 65 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southwest winds less than
10 mph.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the lower 70s. Minimum RH 72 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. Southwest winds
less than 10 mph.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 71 percent.
West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ087-212045-
Southeast Monroe-
Including the cities of Citico and Coker Creek
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 60-65 (-1) 71-76 (-9) 52-57 68-73
RH % (24h trend) 95-100 (+7) 39-44 (-11) 84-89 45-50
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 G21 W 13 G24
PM 20FT Wnd (mph) S 11 G19 W 13 G23 W 12 G20 W 14 G24
Transport Wnd (mph) SW 13 W 24 W 9 W 24
Mixing Hgt(ft-agl) 150 4430 140 5530
Vent Rate (mph-ft) 1950 106320 1260 132720
Max Dispersion Early 6 Very Poor 65 Good 6 Very Poor 61 Good
Max Dispersion Late 7 Poor 96 Good 10 Poor 116 Very Good
Category Day 1 4 1 5
Max LVORI Early 5 6 3 4
Max LVORI Late 7 2 5 2
Precip Chance (%) 90 0 0 30
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.90 0.00 0.00 0.02
Precip Begin 8 PM 2 PM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Sunny. Highs in the mid 60s. Minimum RH 45 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs around 70. Minimum RH 48 percent. Light
winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.SUNDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the mid 70s. Minimum RH 61 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 70s. Minimum RH 70 percent.
Southeast winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows around 60. Southwest winds less
than 10 mph.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 70 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ102-212045-
East Polk-
Including the cities of Big Frog Mountain, Ducktown,
and Turtletown
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Pcldy
Temp (24h trend) 60-65 (-1) 74-79 (-8) 52-57 71-76
RH % (24h trend) 95-100 (+1) 37-42 (-10) 87-92 42-47
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 12 W 13
PM 20FT Wnd (mph) S 14 W 13 W 13 W 14
Transport Wnd (mph) SW 13 W 23 W 9 W 23
Mixing Hgt(ft-agl) 220 4840 220 6060
Vent Rate (mph-ft) 2860 111320 1980 139380
Max Dispersion Early 7 Poor 66 Good 8 Poor 57 Gen Good
Max Dispersion Late 7 Poor 102 Very Good10 Poor 124 Very Good
Category Day 1 4 1 5
Max LVORI Early 5 6 4 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 0 0 20
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.93 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 6 AM Continuing
Chance of Thunder (%) 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Northwest
winds less than 10 mph.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 42 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 46 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
56 percent. Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 65 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows around 60. Southwest winds less
than 10 mph.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
65 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
NCZ060-212045-
Cherokee-
Including the cities of Andrews, Marble, Topton, Hiawasse Dam,
Murphy, Unaka, and Violet
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 59-64 (-1) 73-78 (-7) 51-56 69-74
RH % (24h trend) 95-100 (+1) 36-41 (-11) 84-89 40-45
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 W 13 G21
PM 20FT Wnd (mph) S 11 W 13 NW 13 W 14
Transport Wnd (mph) SW 13 W 24 NW 9 W 23
Mixing Hgt(ft-agl) 290 4740 280 5920
Vent Rate (mph-ft) 3770 113760 2520 136160
Max Dispersion Early 7 Poor 76 Good 10 Poor 67 Good
Max Dispersion Late 7 Poor 109 Very Good10 Poor 119 Very Good
Category Day 1 4 1 5
Max LVORI Early 5 6 3 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 0 0 30
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.81 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 8 AM Continuing
Chance of Thunder (%) 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 43 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 46 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
58 percent. Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 66 percent.
Southeast winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows around 60. Light winds.
.TUESDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 66 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
NCZ061-212045-
Clay-
Including the cities of Shooting Creek, Brasstown, Hayesville,
and Tusquitee
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Mclear
Temp (24h trend) 57-62 (-1) 70-75 (-8) 49-54 66-71
RH % (24h trend) 95-100 (+1) 42-47 (-9) 87-92 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 W 17
PM 20FT Wnd (mph) S 11 W 16 NW 17 W 17
Transport Wnd (mph) SW 14 W 25 NW 10 W 24
Mixing Hgt(ft-agl) 200 4350 190 5480
Vent Rate (mph-ft) 2800 108750 1900 131520
Max Dispersion Early 6 Very Poor 77 Good 12 Poor 78 Good
Max Dispersion Late 8 Poor 105 Very Good8 Poor 114 Very Good
Category Day 1 4 1 5
Max LVORI Early 6 5 4 4
Max LVORI Late 7 1 5 1
Precip Chance (%) 80 0 0 30
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.79 0.00 0.00 0.01
Precip Begin 9 PM 2 PM
Precip End 8 AM Continuing
Chance of Thunder (%) 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear with a slight chance of showers
and thunderstorms. Lows in the mid 40s. West winds less than
10 mph.
.FRIDAY...Sunny. Highs in the mid 60s. Minimum RH 46 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 60s. Minimum RH 50 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 50s. Light winds.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
65 percent. Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows around 60. Light winds.
.MONDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 70s. Minimum RH 72 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs around 70. Minimum RH 72 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ015-212045-
Hancock-
Including the cities of Evanston, Sneedville, Treadway,
and Kyles Ford
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 59-64 (+1) 74-79 (-7) 50-55 68-73
RH % (24h trend) 95-100 (0) 41-46 (-12) 88-93 45-50
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 W 11 G19
PM 20FT Wnd (mph) S 8 W 12 W 11 W 12
Transport Wnd (mph) S 9 W 26 W 10 W 24
Mixing Hgt(ft-agl) 300 5600 340 6750
Vent Rate (mph-ft) 2700 145600 3400 162000
Max Dispersion Early 6 Very Poor 89 Good 12 Poor 116 Very Good
Max Dispersion Late 10 Poor 131 Very Good16 Gen Poor 142 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 4 4
Max LVORI Late 9 1 6 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.64 0.00 0.00 0.04
Precip Begin 8 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the mid 40s. West winds less than 10 mph.
.FRIDAY...Sunny. Highs in the mid 60s. Minimum RH 41 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny. Highs in the lower 70s. Minimum RH
44 percent. Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. Light
winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 66 percent.
Light winds.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 66 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.TUESDAY...Mostly cloudy with a chance of showers. Highs in the
lower 70s. Minimum RH 61 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ016-212045-
Hawkins-
Including the city of Mooresburg
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 59-64 (+1) 74-79 (-9) 51-56 69-74
RH % (24h trend) 95-100 (0) 42-47 (-10) 88-93 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 W 13 G21
PM 20FT Wnd (mph) S 6 W 13 W 12 W 13 G22
Transport Wnd (mph) SE 7 W 25 W 10 W 24
Mixing Hgt(ft-agl) 300 5640 400 6710
Vent Rate (mph-ft) 2100 141000 4000 161040
Max Dispersion Early 5 Very Poor 94 Good 11 Poor 119 Very Good
Max Dispersion Late 10 Poor 124 Very Good17 Gen Poor 141 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 4 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.49 0.00 0.00 0.04
Precip Begin 8 PM Continuing
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 43 percent.
West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny. Highs in the lower 70s. Minimum RH
46 percent. Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. Light
winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 69 percent.
Light winds.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the mid 70s. Minimum RH 68 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.TUESDAY...Partly sunny with a chance of showers. Highs in the
lower 70s. Minimum RH 65 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ017-212045-
Sullivan-
Including the cities of Kingsport, Bristol TN,
and South Holston Dam
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 60-65 (+2) 73-78 (-8) 51-56 67-72
RH % (24h trend) 95-100 (+2) 43-48 (-12) 87-92 49-54
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 16 W 20
PM 20FT Wnd (mph) SE 9 W 18 W 20 W 17
Transport Wnd (mph) SE 8 W 25 W 10 W 25
Mixing Hgt(ft-agl) 350 5330 470 6440
Vent Rate (mph-ft) 2800 133250 4700 161000
Max Dispersion Early 5 Very Poor 83 Good 12 Poor 109 Very Good
Max Dispersion Late 9 Poor 117 Very Good17 Gen Poor 142 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 3 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 20 0 50
Precip Type Tstms Tstms None Showers
Precip Duration 2 1 1
Precip Amount 0.45 0.03 0.00 0.05
Precip Begin 8 PM Continuing Continuing
Precip End Continuing 2 PM Continuing
Chance of Thunder (%) 70 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 60s. Minimum RH
45 percent. West winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny. Highs in the upper 60s. Minimum RH
48 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. Light
winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 67 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the mid 70s. Minimum RH 68 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
64 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ046-212045-
Northwest Carter-
Including the city of Elizabethton
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Pcldy Pcldy
Temp (24h trend) 59-64 (+2) 72-77 (-7) 50-55 66-71
RH % (24h trend) 95-100 (+4) 43-48 (-11) 85-90 45-50
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 G21 W 17 G24
PM 20FT Wnd (mph) SE 8 W 17 W 17 W 16 G24
Transport Wnd (mph) SE 8 W 26 W 13 W 25
Mixing Hgt(ft-agl) 250 5000 380 6150
Vent Rate (mph-ft) 2000 130000 4940 153750
Max Dispersion Early 7 Poor 85 Good 15 Gen Poor 100 Good
Max Dispersion Late 9 Poor 120 Very Good19 Gen Poor 141 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 3 4
Max LVORI Late 7 1 5 1
Precip Chance (%) 80 20 0 40
Precip Type Tstms Tstms None Showers
Precip Duration 3 1 1
Precip Amount 0.39 0.04 0.00 0.05
Precip Begin 8 PM Continuing 8 AM
Precip End Continuing 2 PM Continuing
Chance of Thunder (%) 60 20 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 60s. Minimum RH
45 percent. West winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny. Highs in the upper 60s. Minimum RH
45 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 62 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the mid 70s. Minimum RH 65 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Southwest winds
less than 10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 64 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ044-212045-
Washington TN-
Including the city of Johnson City
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 59-64 (+1) 73-78 (-8) 51-56 68-73
RH % (24h trend) 95-100 (+4) 45-50 (-11) 85-90 49-54
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 14 W 18
PM 20FT Wnd (mph) S 8 W 17 W 17 W 17 G24
Transport Wnd (mph) SE 8 W 26 W 12 W 26
Mixing Hgt(ft-agl) 330 5310 470 6480
Vent Rate (mph-ft) 2640 138060 5640 168480
Max Dispersion Early 5 Very Poor 83 Good 12 Poor 105 Very Good
Max Dispersion Late 9 Poor 123 Very Good19 Gen Poor 152 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 3 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.41 0.00 0.00 0.05
Precip Begin 8 PM 8 AM
Precip End Continuing Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 60s. Minimum RH
48 percent. West winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny. Highs in the upper 60s. Minimum RH
49 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. Light
winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 66 percent.
East winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the mid 70s. Minimum RH 70 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Southwest winds
less than 10 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
67 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ042-212045-
Northwest Greene-
Including the city of Greeneville
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 60-65 (+1) 74-79 (-8) 52-57 69-74
RH % (24h trend) 95-100 (+2) 45-50 (-7) 86-91 50-55
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 W 14 G23
PM 20FT Wnd (mph) S 6 W 14 G22 W 14 W 14 G23
Transport Wnd (mph) SE 8 W 25 W 12 W 25
Mixing Hgt(ft-agl) 360 5420 450 6570
Vent Rate (mph-ft) 2880 135500 5400 164250
Max Dispersion Early 7 Poor 91 Good 10 Poor 95 Good
Max Dispersion Late 9 Poor 120 Very Good17 Gen Poor 142 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 3 4
Max LVORI Late 7 1 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.41 0.00 0.00 0.05
Precip Begin 8 PM 8 AM
Precip End Continuing Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 60s. Minimum RH
46 percent. West winds 5 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny. Highs around 70. Minimum RH 48 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. Light
winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 67 percent.
East winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the mid 70s. Minimum RH 68 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. South winds less
than 10 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
67 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ038-212045-
Grainger-
Including the city of Bean Station
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 62-67 (+1) 75-80 (-8) 53-58 70-75
RH % (24h trend) 95-100 (+1) 40-45 (-15) 85-90 46-51
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 G19 W 11 G20
PM 20FT Wnd (mph) SW 11 W 12 W 12 W 12 G21
Transport Wnd (mph) SW 10 W 25 W 9 W 24
Mixing Hgt(ft-agl) 300 5560 280 6880
Vent Rate (mph-ft) 3000 139000 2520 165120
Max Dispersion Early 6 Very Poor 99 Good 10 Poor 98 Good
Max Dispersion Late 11 Poor 125 Very Good12 Poor 143 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 4 4
Max LVORI Late 7 1 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.58 0.00 0.00 0.02
Precip Begin 8 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 42 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 45 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 67 percent.
East winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 68 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows around 60. Light winds.
.TUESDAY...Mostly cloudy with a chance of showers. Highs in the
mid 70s. Minimum RH 65 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ039-212045-
Hamblen-
Including the cities of Alpha, Morristown, and Russellville
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 61-66 (+1) 75-80 (-8) 53-58 70-75
RH % (24h trend) 95-100 (+1) 42-47 (-10) 87-92 48-53
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 G20 W 11 G21
PM 20FT Wnd (mph) SW 6 W 11 G20 W 11 W 11 G21
Transport Wnd (mph) S 9 W 25 W 12 W 24
Mixing Hgt(ft-agl) 350 5670 360 6720
Vent Rate (mph-ft) 3150 141750 4320 161280
Max Dispersion Early 5 Very Poor 100 Good 10 Poor 95 Good
Max Dispersion Late 9 Poor 128 Very Good14 Gen Poor 141 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 4 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.47 0.00 0.00 0.03
Precip Begin 8 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. Minimum RH
44 percent. West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny. Highs in the lower 70s. Minimum RH
46 percent. Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 68 percent.
South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the mid 70s. Minimum RH 68 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows around 60. Light winds.
.TUESDAY...Partly sunny with a chance of showers. Highs in the
mid 70s. Minimum RH 67 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ040-212045-
Northwest Cocke-
Including the cities of Bybee and Newport
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 61-66 (+1) 74-79 (-9) 53-58 70-75
RH % (24h trend) 95-100 (+2) 41-46 (-5) 84-89 46-51
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 16 W 17
PM 20FT Wnd (mph) S 10 W 17 W 17 W 17
Transport Wnd (mph) S 7 W 26 W 15 W 24
Mixing Hgt(ft-agl) 340 5380 440 6340
Vent Rate (mph-ft) 2380 139880 6600 152160
Max Dispersion Early 4 Very Poor 103 Very Good10 Poor 87 Good
Max Dispersion Late 8 Poor 126 Very Good16 Gen Poor 138 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 3 4
Max LVORI Late 6 1 4 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.49 0.00 0.00 0.05
Precip Begin 8 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. Minimum RH
43 percent. West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 44 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 62 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the mid 70s. Minimum RH 66 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows around 60. Light winds.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
66 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ070-212045-
Jefferson-
Including the cities of Jefferson City, Strawberry Plains,
Chestnut Hill, Dandridge, and White Pine
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 62-67 (+1) 75-80 (-9) 54-59 70-75
RH % (24h trend) 95-100 (0) 42-47 (-9) 86-91 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 W 13 G21
PM 20FT Wnd (mph) SW 6 W 13 G21 W 11 W 13 G21
Transport Wnd (mph) SW 9 W 25 W 10 W 24
Mixing Hgt(ft-agl) 380 5660 360 6650
Vent Rate (mph-ft) 3420 141500 3600 159600
Max Dispersion Early 6 Very Poor 100 Good 10 Poor 83 Good
Max Dispersion Late 10 Poor 125 Very Good12 Poor 139 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 3 4
Max LVORI Late 7 2 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.55 0.00 0.00 0.04
Precip Begin 8 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows around 50. West winds less than 10 mph.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 44 percent.
West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 45 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 65 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the mid 70s. Minimum RH 67 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. Light winds.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
67 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ035-212045-
Morgan-
Including the cities of Pine Orchard, High Point, and Petros
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 59-64 (-2) 73-78 (-8) 52-57 69-74
RH % (24h trend) 95-100 (+1) 40-45 (-22) 87-92 48-53
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 W 13
PM 20FT Wnd (mph) SW 13 W 13 W 13 W 14
Transport Wnd (mph) SW 10 W 26 W 9 W 25
Mixing Hgt(ft-agl) 330 5100 310 6070
Vent Rate (mph-ft) 3300 132600 2790 151750
Max Dispersion Early 7 Poor 84 Good 12 Poor 87 Good
Max Dispersion Late 7 Poor 120 Very Good13 Gen Poor 130 Very Good
Category Day 1 5 1 5
Max LVORI Early 7 5 4 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 80 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.66 0.00 0.00 0.03
Precip Begin 8 PM 8 AM
Precip End 6 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Northwest
winds less than 10 mph.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 44 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
48 percent. Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 68 percent. South
winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 70 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southwest
winds less than 10 mph.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
65 percent. Northwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ012-212045-
Scott TN-
Including the cities of Big South Fork National, Oneida,
Smokey Junction, Elgin, Huntsville, Norma, and Slick Rock
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 59-64 (-2) 71-76 (-9) 51-56 67-72
RH % (24h trend) 95-100 (+1) 42-47 (-22) 87-92 49-54
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 G19 W 12 G21
PM 20FT Wnd (mph) SW 11 W 11 G20 W 11 W 12 G21
Transport Wnd (mph) SW 13 W 28 W 10 W 25
Mixing Hgt(ft-agl) 360 5130 330 6370
Vent Rate (mph-ft) 4680 143640 3300 159250
Max Dispersion Early 8 Poor 94 Good 12 Poor 102 Very Good
Max Dispersion Late 9 Poor 124 Very Good14 Gen Poor 141 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 4 4
Max LVORI Late 7 1 5 1
Precip Chance (%) 80 0 0 40
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.68 0.00 0.00 0.03
Precip Begin 8 PM 8 AM
Precip End 6 AM 8 PM
Chance of Thunder (%) 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Northwest
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 60s. Minimum RH
45 percent. Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
49 percent. Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the lower 70s. Minimum RH 70 percent.
South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 72 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. West winds
less than 10 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 70. Minimum RH 65 percent.
Northwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ013-212045-
Campbell-
Including the cities of Fincastle, La Follette, Elk Valley,
Jellico, White Oak, Caryville, and Royal Blue
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 60-65 (-1) 71-76 (-8) 52-57 67-72
RH % (24h trend) 95-100 (0) 43-48 (-22) 81-86 48-53
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 12 W 13 G21
PM 20FT Wnd (mph) SW 12 W 12 G20 W 13 W 14 G22
Transport Wnd (mph) SW 12 W 26 W 9 W 24
Mixing Hgt(ft-agl) 230 5180 240 6640
Vent Rate (mph-ft) 2760 134680 2160 159360
Max Dispersion Early 6 Very Poor 89 Good 12 Poor 106 Very Good
Max Dispersion Late 8 Poor 122 Very Good11 Poor 140 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 3 4
Max LVORI Late 7 1 4 1
Precip Chance (%) 80 0 0 40
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.59 0.00 0.00 0.02
Precip Begin 8 PM 8 AM
Precip End 7 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 40s. West winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 60s. Minimum RH
46 percent. Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 60s. Minimum RH 50 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the lower 70s. Minimum RH 71 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Light winds.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 72 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. West winds
less than 10 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 60s. Minimum RH
67 percent. Northwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ014-212045-
Claiborne-
Including the cities of Lone Mountain, Sandlick, Springdale,
Arthur, Harrogate-Shawanee, Clairfield, and Howard Quarter
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 60-65 (+1) 73-78 (-7) 52-57 68-73
RH % (24h trend) 95-100 (0) 40-45 (-21) 85-90 46-51
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 W 11 G19
PM 20FT Wnd (mph) SW 8 W 11 G19 W 11 W 11 G19
Transport Wnd (mph) SW 10 W 28 W 10 W 24
Mixing Hgt(ft-agl) 300 5420 290 6730
Vent Rate (mph-ft) 3000 151760 2900 161520
Max Dispersion Early 7 Poor 89 Good 11 Poor 110 Very Good
Max Dispersion Late 8 Poor 129 Very Good12 Poor 140 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 4 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.57 0.00 0.00 0.02
Precip Begin 8 PM 8 AM
Precip End 7 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 60s. Minimum RH
43 percent. Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs around 70. Minimum RH 46 percent. Light
winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. Light
winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 67 percent.
East winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 68 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
63 percent. Northwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ037-212045-
Union-
Including the cities of Maynardville, Norris Lake, Paulette,
Rose Hill, Sharps Chapel, and Luttrell
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 62-67 (+1) 75-80 (-7) 54-59 70-75
RH % (24h trend) 95-100 (+1) 41-46 (-20) 83-88 45-50
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 W 11 G19
PM 20FT Wnd (mph) SW 11 W 11 G19 W 11 W 11 G20
Transport Wnd (mph) SW 10 W 26 W 8 W 24
Mixing Hgt(ft-agl) 380 5570 330 7030
Vent Rate (mph-ft) 3800 144820 2640 168720
Max Dispersion Early 7 Poor 90 Good 10 Poor 94 Good
Max Dispersion Late 7 Poor 126 Very Good9 Poor 145 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 3 4
Max LVORI Late 7 1 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.60 0.00 0.00 0.03
Precip Begin 8 PM 8 AM
Precip End 7 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 40s. Light winds.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 42 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 47 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 67 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 68 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. Light winds.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
64 percent. Northwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ036-212045-
Anderson-
Including the cities of Oak Ridge and Clinton
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 61-66 (0) 73-78 (-8) 53-58 69-74
RH % (24h trend) 95-100 (+1) 39-44 (-24) 84-89 44-49
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 14 W 14 G22
PM 20FT Wnd (mph) SW 14 W 13 G21 W 14 W 16
Transport Wnd (mph) SW 12 W 25 W 8 W 23
Mixing Hgt(ft-agl) 310 5380 280 6610
Vent Rate (mph-ft) 3720 134500 2240 152030
Max Dispersion Early 6 Very Poor 87 Good 8 Poor 83 Good
Max Dispersion Late 9 Poor 119 Very Good8 Poor 134 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 4 4
Max LVORI Late 8 1 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.65 0.00 0.00 0.02
Precip Begin 8 PM 8 AM
Precip End 6 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 40s. Northwest winds less
than 10 mph.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 43 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 48 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 68 percent.
South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 71 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. Southwest winds
less than 10 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
66 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ069-212045-
Knox-
Including the cities of Bearden, Knoxville, and Lake Forest
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 63-68 (+1) 75-80 (-8) 54-59 71-76
RH % (24h trend) 95-100 (0) 41-46 (-14) 86-91 45-50
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 G19 SW 12 G20
PM 20FT Wnd (mph) SW 9 W 12 G20 W 10 W 12 G21
Transport Wnd (mph) SW 10 W 24 W 8 W 23
Mixing Hgt(ft-agl) 420 5660 350 6610
Vent Rate (mph-ft) 4200 135840 2800 152030
Max Dispersion Early 6 Very Poor 91 Good 8 Poor 74 Good
Max Dispersion Late 9 Poor 119 Very Good8 Poor 137 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 4 5
Max LVORI Late 7 2 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.66 0.00 0.00 0.02
Precip Begin 8 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows around 50. Light winds.
.FRIDAY...Sunny. Highs around 70. Minimum RH 42 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows around 50. Light winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 46 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 66 percent.
Southwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southwest winds less than
10 mph.
.MONDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 69 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. Southwest winds
less than 10 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
66 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ073-212045-
North Sevier-
Including the cities of Harrisburg, Kodak, McMahan, Sevierville,
Seymour, and Pigeon Forge
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Pcldy Mclear Pcldy
Temp (24h trend) 62-67 (+1) 74-79 (-10) 54-59 70-75
RH % (24h trend) 95-100 (+3) 42-47 (-5) 86-91 46-51
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 18 W 16
PM 20FT Wnd (mph) SW 14 W 16 W 16 W 17
Transport Wnd (mph) SW 9 W 25 W 10 W 24
Mixing Hgt(ft-agl) 420 5460 420 5590
Vent Rate (mph-ft) 3780 136500 4200 134160
Max Dispersion Early 6 Very Poor 100 Good 10 Poor 76 Good
Max Dispersion Late 11 Poor 119 Very Good12 Poor 120 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 3 4
Max LVORI Late 6 1 4 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.68 0.00 0.00 0.04
Precip Begin 8 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 40s. West winds less than
10 mph.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 44 percent.
West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 45 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 70s. Minimum RH 62 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 67 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. Southwest winds
less than 10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 67 percent.
West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ067-212045-
Roane-
Including the cities of Harriman, Eagle Furnace, Rockwood,
Bradbury, Fairview, Kingston, and Oliver Springs
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 61-66 (0) 75-80 (-8) 53-58 72-77
RH % (24h trend) 95-100 (0) 41-46 (-20) 89-94 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 9 W 10 G17
PM 20FT Wnd (mph) SW 6 W 10 G18 W 8 W 11 G19
Transport Wnd (mph) SW 10 W 24 W 6 W 23
Mixing Hgt(ft-agl) 440 5450 370 6280
Vent Rate (mph-ft) 4400 130800 2220 144440
Max Dispersion Early 7 Poor 82 Good 7 Poor 69 Good
Max Dispersion Late 7 Poor 115 Very Good10 Poor 127 Very Good
Category Day 1 5 1 5
Max LVORI Early 7 5 5 5
Max LVORI Late 9 2 6 1
Precip Chance (%) 80 0 0 30
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.68 0.00 0.00 0.02
Precip Begin 8 PM 8 AM
Precip End 6 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.FRIDAY...Sunny. Highs around 70. Minimum RH 43 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 51 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 70s. Minimum RH 67 percent.
South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 72 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. Light winds.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
66 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ068-212045-
Loudon-
Including the cities of Lenoir City and Loudon
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 62-67 (0) 75-80 (-8) 53-58 72-77
RH % (24h trend) 95-100 (0) 42-47 (-17) 89-94 47-52
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 SW 11
PM 20FT Wnd (mph) SW 6 W 11 W 6 W 12 G20
Transport Wnd (mph) SW 12 W 24 W 10 W 24
Mixing Hgt(ft-agl) 450 5420 350 6000
Vent Rate (mph-ft) 5400 130080 3500 144000
Max Dispersion Early 7 Poor 82 Good 6 Very Poor 57 Gen Good
Max Dispersion Late 9 Poor 115 Very Good8 Poor 126 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 5 5
Max LVORI Late 9 2 6 1
Precip Chance (%) 80 0 0 30
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.86 0.00 0.00 0.02
Precip Begin 8 PM 2 PM
Precip End 7 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 40s. Light winds.
.FRIDAY...Sunny. Highs around 70. Minimum RH 43 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 50 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 70s. Minimum RH 65 percent.
South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds less than
10 mph.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 72 percent.
Southwest winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. Southwest winds
less than 10 mph.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
67 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ071-212045-
Northwest Blount-
Including the cities of Happy Valley, Maryville, and Alcoa
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 62-67 (-1) 75-80 (-9) 54-59 71-76
RH % (24h trend) 95-100 (+4) 43-48 (-9) 84-89 49-54
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 SW 13
PM 20FT Wnd (mph) SW 11 W 13 SW 11 W 14 G22
Transport Wnd (mph) S 10 W 24 W 9 W 23
Mixing Hgt(ft-agl) 400 5440 350 5350
Vent Rate (mph-ft) 4000 130560 3150 123050
Max Dispersion Early 6 Very Poor 82 Good 7 Poor 56 Gen Good
Max Dispersion Late 12 Poor 115 Very Good8 Poor 112 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 4 5
Max LVORI Late 6 2 5 1
Precip Chance (%) 90 0 0 40
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.87 0.00 0.00 0.03
Precip Begin 8 PM 8 AM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows around 50. West winds less than 10 mph.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 45 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows around 50. Light winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 49 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.SUNDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms. Highs in the upper 70s. Minimum RH 65 percent.
South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Southwest winds less than
10 mph.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 71 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. Southwest winds
less than 10 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
68 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ086-212045-
Northwest Monroe-
Including the cities of Sweetwater, Madisonville,
and Bullet Creek
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 62-67 (0) 76-81 (-8) 53-58 73-78
RH % (24h trend) 95-100 (+1) 38-43 (-15) 89-94 45-50
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 10 G17 W 10 G17
PM 20FT Wnd (mph) SW 8 W 10 G17 W 6 W 11 G19
Transport Wnd (mph) S 12 W 23 SW 7 W 24
Mixing Hgt(ft-agl) 420 5290 350 5940
Vent Rate (mph-ft) 5040 121670 2450 142560
Max Dispersion Early 7 Poor 77 Good 6 Very Poor 56 Gen Good
Max Dispersion Late 10 Poor 108 Very Good10 Poor 123 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 4 5
Max LVORI Late 7 2 5 1
Precip Chance (%) 90 0 0 30
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.88 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 8 AM Continuing
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 40s. Light winds.
.FRIDAY...Sunny. Highs in the lower 70s. Minimum RH 42 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 47 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.SUNDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs around 80. Minimum RH 60 percent. South
winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 69 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southwest
winds less than 10 mph.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
65 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ083-212045-
Rhea-
Including the cities of Dayton, Evensville, Old Washington,
Grandview, and Spring City
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Pcldy
Temp (24h trend) 60-65 (-1) 74-79 (-8) 53-58 71-76
RH % (24h trend) 95-100 (0) 43-48 (-19) 90-95 50-55
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 10 G18 W 10 G18
PM 20FT Wnd (mph) SW 8 W 10 G19 W 6 W 10 G20
Transport Wnd (mph) SW 12 W 25 W 9 W 24
Mixing Hgt(ft-agl) 270 5120 260 6130
Vent Rate (mph-ft) 3240 128000 2340 147120
Max Dispersion Early 8 Poor 75 Good 8 Poor 62 Good
Max Dispersion Late 6 Very Poor 116 Very Good11 Poor 129 Very Good
Category Day 1 5 1 5
Max LVORI Early 7 6 5 5
Max LVORI Late 8 2 6 1
Precip Chance (%) 80 0 0 30
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.78 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 6 AM 8 PM
Chance of Thunder (%) 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 48 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 56 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the upper 70s. Minimum RH 73 percent.
South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 78 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
71 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ084-212045-
Meigs-
Including the city of Big Spring
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Pcldy
Temp (24h trend) 61-66 (-1) 76-81 (-8) 53-58 74-79
RH % (24h trend) 95-100 (0) 40-45 (-18) 91-96 46-51
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 9 W 9
PM 20FT Wnd (mph) SW 5 W 9 Lgt/Var W 10 G17
Transport Wnd (mph) SW 12 W 24 W 6 W 24
Mixing Hgt(ft-agl) 470 5340 390 6470
Vent Rate (mph-ft) 5640 128160 2340 155280
Max Dispersion Early 8 Poor 77 Good 7 Poor 59 Gen Good
Max Dispersion Late 6 Very Poor 112 Very Good9 Poor 133 Very Good
Category Day 1 5 1 5
Max LVORI Early 7 7 5 5
Max LVORI Late 9 2 6 1
Precip Chance (%) 80 0 0 20
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.87 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 6 AM 8 PM
Chance of Thunder (%) 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.FRIDAY...Sunny. Highs in the lower 70s. Minimum RH 44 percent.
North winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 52 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs around 80. Minimum RH 67 percent. South
winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 73 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. Light winds.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
67 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ085-212045-
McMinn-
Including the cities of Athens, Clear Water, Dentville,
and Etowah
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 61-66 (-1) 76-81 (-8) 53-58 74-79
RH % (24h trend) 95-100 (0) 38-43 (-17) 91-96 44-49
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 10 W 10
PM 20FT Wnd (mph) SW 9 W 10 W 6 W 11
Transport Wnd (mph) SW 12 W 24 W 9 W 23
Mixing Hgt(ft-agl) 410 5260 310 6030
Vent Rate (mph-ft) 4920 126240 2790 138690
Max Dispersion Early 7 Poor 75 Good 6 Very Poor 56 Gen Good
Max Dispersion Late 8 Poor 109 Very Good9 Poor 116 Very Good
Category Day 1 5 1 5
Max LVORI Early 7 6 5 5
Max LVORI Late 9 2 6 1
Precip Chance (%) 80 0 0 20
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.93 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 5 AM 8 PM
Chance of Thunder (%) 70 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.FRIDAY...Sunny. Highs in the lower 70s. Minimum RH 42 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 70s. Minimum RH 48 percent. Light
winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 61 percent.
South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 69 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. Light winds.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
65 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ099-212045-
Hamilton-
Including the cities of Chattanooga, Lookout Mountain,
and Signal Mountain
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 62-67 (-2) 76-81 (-8) 55-60 74-79
RH % (24h trend) 95-100 (0) 39-44 (-18) 86-91 42-47
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 9 G17 W 9 G17
PM 20FT Wnd (mph) SW 11 W 10 G18 W 9 W 11 G19
Transport Wnd (mph) SW 13 W 23 W 8 W 23
Mixing Hgt(ft-agl) 310 5130 280 6960
Vent Rate (mph-ft) 4030 117990 2240 160080
Max Dispersion Early 9 Poor 74 Good 8 Poor 63 Good
Max Dispersion Late 6 Very Poor 106 Very Good9 Poor 141 Very Good
Category Day 1 4 1 5
Max LVORI Early 6 5 4 4
Max LVORI Late 8 2 5 1
Precip Chance (%) 80 0 0 20
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.80 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 4 AM 8 PM
Chance of Thunder (%) 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light
winds.
.FRIDAY...Sunny. Highs in the lower 70s. Minimum RH 45 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 50s. Light
winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 54 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 80s. Minimum RH
65 percent. Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 72 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southwest
winds less than 10 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
69 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ100-212045-
Bradley-
Including the cities of Cleveland and Tasso
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 62-67 (-1) 77-82 (-8) 54-59 75-80
RH % (24h trend) 95-100 (0) 38-43 (-14) 91-96 42-47
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 9 G17 W 10 G17
PM 20FT Wnd (mph) S 6 W 10 G18 W 6 W 11 G19
Transport Wnd (mph) SW 14 W 21 W 6 W 23
Mixing Hgt(ft-agl) 420 5330 340 6900
Vent Rate (mph-ft) 5880 111930 2040 158700
Max Dispersion Early 7 Poor 72 Good 6 Very Poor 55 Gen Good
Max Dispersion Late 6 Very Poor 104 Very Good7 Poor 137 Very Good
Category Day 1 4 1 5
Max LVORI Early 7 6 5 5
Max LVORI Late 9 2 6 1
Precip Chance (%) 80 0 0 20
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.95 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 4 AM 8 PM
Chance of Thunder (%) 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light
winds.
.FRIDAY...Sunny. Highs in the lower 70s. Minimum RH 43 percent.
North winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows around 50. Light winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 70s. Minimum RH 49 percent. Light
winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the upper 50s. Light winds.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 80s. Minimum RH
59 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 68 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southwest
winds less than 10 mph.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
65 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ101-212045-
West Polk-
Including the cities of Conasauga, Archville, Benton, Parksville,
and Reliance
340 PM EDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Mcldy Mclear Mclear Pcldy
Temp (24h trend) 62-67 (-2) 77-82 (-7) 54-59 74-79
RH % (24h trend) 95-100 (+2) 36-41 (-12) 88-93 41-46
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 8 W 9 G17
PM 20FT Wnd (mph) S 9 W 9 G18 W 6 W 11 G19
Transport Wnd (mph) SW 13 W 22 W 7 W 23
Mixing Hgt(ft-agl) 400 5370 350 6370
Vent Rate (mph-ft) 5200 118140 2450 146510
Max Dispersion Early 9 Poor 73 Good 6 Very Poor 54 Gen Good
Max Dispersion Late 9 Poor 103 Very Good9 Poor 126 Very Good
Category Day 1 5 1 5
Max LVORI Early 5 5 4 5
Max LVORI Late 7 2 5 1
Precip Chance (%) 90 0 0 20
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 1.02 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 5 AM 8 PM
Chance of Thunder (%) 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows around 50. Light winds.
.FRIDAY...Sunny. Highs in the lower 70s. Minimum RH 40 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows around 50. Light winds.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 70s. Minimum RH 46 percent. Light
winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 80s. Minimum RH
55 percent. South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 63 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 60s. Light winds.
.TUESDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
62 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ082-212045-
Bledsoe-
Including the cities of Old Cumberland, Palio, Melvine,
Mount Crest, Pikeville, and Brayton
240 PM CDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Pcldy
Temp (24h trend) 59-64 (-2) 72-77 (-9) 52-57 70-75
RH % (24h trend) 95-100 (-1) 40-45 (-21) 87-92 48-53
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 10 G18 W 10 G19
PM 20FT Wnd (mph) SW 10 W 10 G19 W 9 W 11 G20
Transport Wnd (mph) SW 12 W 28 W 12 W 21
Mixing Hgt(ft-agl) 90 4760 80 5160
Vent Rate (mph-ft) 1080 133280 960 108360
Max Dispersion Early 6 Very Poor 70 Good 7 Poor 69 Good
Max Dispersion Late 8 Poor 110 Very Good10 Poor 93 Good
Category Day 1 5 1 4
Max LVORI Early 6 5 4 4
Max LVORI Late 7 1 5 2
Precip Chance (%) 80 0 0 30
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.82 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 7 AM 8 PM
Chance of Thunder (%) 50 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 47 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a chance of showers and
thunderstorms. Highs around 70. Minimum RH 54 percent. Light
winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light winds.
.SUNDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 70 percent. South
winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 75 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
68 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ081-212045-
Sequatchie-
Including the cities of Cagle, Dunlap, Cartwright, and Lone Oak
240 PM CDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 59-64 (-3) 72-77 (-8) 53-58 70-75
RH % (24h trend) 95-100 (-1) 42-47 (-20) 87-92 49-54
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 9 G18 W 9 G19
PM 20FT Wnd (mph) SW 11 W 10 G19 W 9 W 11 G20
Transport Wnd (mph) SW 13 NW 26 W 12 W 23
Mixing Hgt(ft-agl) 50 4640 50 5420
Vent Rate (mph-ft) 650 120640 600 124660
Max Dispersion Early 6 Very Poor 67 Good 7 Poor 68 Good
Max Dispersion Late 7 Poor 104 Very Good8 Poor 115 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 3 4
Max LVORI Late 7 1 5 2
Precip Chance (%) 80 0 0 20
Precip Type Tstms None None Showers
Precip Duration 3 1
Precip Amount 0.88 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 7 AM 8 PM
Chance of Thunder (%) 50 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.FRIDAY...Sunny. Highs in the upper 60s. Minimum RH 47 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.SATURDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 56 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light
winds.
.SUNDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the upper 70s. Minimum RH 71 percent.
South winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 77 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southwest
winds less than 10 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
71 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ098-212045-
Marion-
Including the cities of South Pittsburg, Haletown (Guild),
Jasper, Martin Springs, Whitwell, Powells Crossroads,
and Monteagle
240 PM CDT Tue May 20 2025
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 61-66 (-3) 74-79 (-7) 55-60 72-77
RH % (24h trend) 95-100 (-1) 40-45 (-19) 84-89 44-49
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 8 G17 W 9 G17
PM 20FT Wnd (mph) SW 10 W 9 G19 W 9 W 10 G19
Transport Wnd (mph) SW 13 NW 24 W 8 W 23
Mixing Hgt(ft-agl) 130 4810 110 6310
Vent Rate (mph-ft) 1690 115440 880 145130
Max Dispersion Early 9 Poor 66 Good 9 Poor 65 Good
Max Dispersion Late 8 Poor 99 Good 10 Poor 127 Very Good
Category Day 1 5 1 5
Max LVORI Early 6 5 3 4
Max LVORI Late 6 1 5 1
Precip Chance (%) 90 0 0 20
Precip Type Tstms None None Showers
Precip Duration 2 1
Precip Amount 0.88 0.00 0.00 0.01
Precip Begin 8 PM 2 PM
Precip End 6 AM 8 PM
Chance of Thunder (%) 60 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows around 50. Northwest winds
less than 10 mph.
.FRIDAY...Sunny. Highs around 70. Minimum RH 45 percent.
Northwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 50s. Light
winds.
.SATURDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the lower 70s. Minimum RH 55 percent.
Light winds.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. Light winds.
.SUNDAY...Partly sunny with showers likely and a slight chance of
thunderstorms. Highs in the upper 70s. Minimum RH 68 percent.
Southeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 60s. Light winds.
.MONDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the mid 70s. Minimum RH 74 percent. South
winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. Southwest
winds less than 10 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
68 percent. West winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
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