
Print This Forecast (Printer-Friendly)
FNUS51 KRNK 171633
FWFRNK
Fire Weather Planning Forecast for SW VA...SE WV and NW NC
National Weather Service Blacksburg VA
1233 PM EDT Fri Jul 17 2026
.DISCUSSION...
Moisture will gradually increase today into the weekend as a
cold front approaches from the Great Lakes region. Coverage
of showers and thunderstorms today will be isolated to widely
scattered mainly in the mountains, however coverage will
increase for Saturday as the cold front draws closer. Some
storms could be strong to severe with damaging winds as the
main threat. Despite smoke from wildfires in Canada passing
across the region, strong heating today will allow for minimum
RH values this afternoon to fall into the 30s and 40s percent
across the Piedmont, and mainly higher values over the
mountains. Winds today will remain less than 10 mph areawide.
WVZ042-180830-
Mercer-
Including the cities of Bluefield and Flat Top
1233 PM EDT Fri Jul 17 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type None Tstms Tstms Tstms
Chance Precip (%) 0 70 70 60
Chance of Thunder (%) 0 70 50 50
Min/Max Temp 67 80 66 81
Max/Min RH % 99 68 100 67
Wind 20ft/early(mph) Lgt/Var Lgt/Var W 5 W 4
Wind 20ft/late(mph) Lgt/Var W 5 W 4 NW 4
Precip Amount 0.00 0.13 0.14 0.08
Precip Duration 4 6 5
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing 6 PM
Mixing Hgt(ft-agl) 4150 4400
Transport Wnd (mph) W 14 NW 12
Vent Rate (mph-ft) 58100 52800
Dispersion Very Poor Fair
Max ADI Early 36 Fair 33 Fair 45 Gen Good 43 Gen Good
Max ADI Late 3 Very Poor 53 Gen Good 7 Poor 46 Gen Good
Max LVORI Early 5 8 6 8
Max LVORI Late 8 3 9 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds around 5 mph.
.MONDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 57 percent.
Southwest winds around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds around 5 mph.
.TUESDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the mid 80s. Minimum RH 57 percent.
Southwest winds around 5 mph.
.TUESDAY NIGHT...Mostly cloudy with showers likely and a chance
of thunderstorms. Lows in the upper 60s. Southwest winds 10 to
15 mph.
.WEDNESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
65 percent. West winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 50s. Northwest winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
53 percent. Northwest winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. North
winds around 5 mph.
.FRIDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 80. Minimum RH 53 percent. Northwest
winds around 5 mph.
.OUTLOOK 8 TO 14 DAYS...
Temperatures near normal. Precipitation above normal.