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FNUS51 KRNK 211815
FWFRNK
Fire Weather Planning Forecast for SW VA...SE WV and NW NC
National Weather Service Blacksburg VA
215 PM EDT Fri Aug 21 2026
.DISCUSSION...
Additional widely scattered showers and thunderstorms will
develop across the lower Mid-Atlantic this afternoon and evening,
resulting in potentially another round of localized wetting
rainfall. Minimum RH holding at 50 percent or above areawide, with
most areas holding well above 50 percent for most of the day.
Given this wet pattern, there are currently no fire weather
concerns at this time.
A drier airmass arrives on Sunday with min RH values falling
below 50 percent. Breezy northwest winds through Monday.
WVZ042-220815-
Mercer-
Including the cities of Bluefield and Flat Top
215 PM EDT Fri Aug 21 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type Tstms None Tstms None
Chance Precip (%) 50 0 40 0
Chance of Thunder (%) 20 0 40 0
Min/Max Temp 61 80 59 75
Max/Min RH % 100 66 100 55
Wind 20ft/early(mph) Lgt/Var Lgt/Var W 3 W 5
Wind 20ft/late(mph) Lgt/Var W 3 W 3 NW 6
Precip Amount 0.16 0.00 0.05 0.00
Precip Duration 1 1
Precip Begin 6 PM 6 PM
Precip End 11 PM 2 AM
Mixing Hgt(ft-agl) 4610 6090
Transport Wnd (mph) W 7 W 15
Vent Rate (mph-ft) 32270 91350
Dispersion Very Poor Poor
Max ADI Early 15 Gen Poor 17 Gen Poor 32 Fair 52 Gen Good
Max ADI Late 4 Very Poor 43 Gen Good 8 Poor 109 Very Good
Max LVORI Early 8 10 9 8
Max LVORI Late 9 3 9 3
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds
around 5 mph.
.MONDAY...Sunny. Highs in the mid 70s. Minimum RH 49 percent.
West winds around 5 mph.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s. Northwest
winds around 5 mph.
.TUESDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
49 percent. West winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds around 5 mph.
.WEDNESDAY...Partly sunny with a chance of showers and
thunderstorms. Highs around 80. Minimum RH 58 percent. South
winds around 5 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds around 5 mph.
.THURSDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Highs in the upper 70s. Minimum RH 70 percent.
Southwest winds around 5 mph.
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 60s. Southwest winds around 5 mph.
.FRIDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 66 percent.
West winds around 5 mph.
.OUTLOOK 8 TO 14 DAYS...
Temperatures above normal. Precipitation above normal.