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FNUS51 KRNK 200715
FWFRNK
Fire Weather Planning Forecast for SW VA...SE WV and NW NC
National Weather Service Blacksburg VA
315 AM EDT Mon Jul 20 2026
.DISCUSSION...
Scattered showers and thunderstorms look to continue in the
forecast through Wednesday, with more widespread shower and
thunderstorm activity expected Tuesday afternoon and evening
with the passage of a cold front. A moist and humid airmass looks
to hang around through Wednesday, with surface high pressure
advecting much drier air into the region Wednesday night into
Thursday. While minimum RH values don't look to change much
during the afternoon hours due to cooler temperatures, the
dewpoints across the region look to fall into the upper 50s to
low 60s areawide. Overall, there are no major fire weather concerns
at this time with the current moist airmass over the region.
WVZ042-202015-
Mercer-
Including the cities of Bluefield and Flat Top
315 AM EDT Mon Jul 20 2026
Today Tonight Tue
Cloud Cover Pcldy Pcldy Mcldy
Precip Type Tstms Tstms Tstms
Chance Precip (%) 60 40 70
Chance of Thunder (%) 50 40 50
Max/Min Temp 81 65 82
Min/Max RH % 66 100 72
Wind 20ft/early(mph) Lgt/Var Lgt/Var SW 5 G17
Wind 20ft/late(mph) Lgt/Var SW 3 SW 7 G19
Precip Amount 0.05 0.09 0.09
Precip Duration 1 2 4
Precip Begin 1 PM Continuing Continuing
Precip End Continuing Continuing Continuing
Mixing Hgt(ft-agl) 4280 3680
Transport Wnd (mph) SW 6 W 13
Vent Rate (mph-ft) 25680 47840
Dispersion Very Poor
Max ADI Early 27 Fair 9 Poor 38 Fair
Max ADI Late 40 Fair 5 Very Poor 45 Gen Good
Max LVORI Early 10 9 9
Max LVORI Late 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.TUESDAY NIGHT...Showers and a chance of thunderstorms. Lows in
the mid 60s. Southwest winds 10 to 15 mph.
.WEDNESDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 70 percent.
West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. North
winds around 5 mph.
.THURSDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 70s. Minimum RH 60 percent.
Northeast winds around 5 mph.
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 50s. East winds around 5 mph.
.FRIDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
67 percent. Southeast winds around 5 mph.
.FRIDAY NIGHT...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows in the lower 60s. Southeast winds around
5 mph.
.SATURDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
72 percent. Southeast winds around 5 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 60s. South winds around 5 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 64 percent.
Southwest winds around 5 mph.
.OUTLOOK 8 TO 14 DAYS...
Temperatures near normal. Precipitation above normal.