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FNUS51 KRNK 180735
FWFRNK
Fire Weather Planning Forecast for SW VA...SE WV and NW NC
National Weather Service Blacksburg VA
335 AM EDT Tue Aug 18 2026
.DISCUSSION...
A cold front will pass across the lower Mid-Atlantic today,
resulting in seasonal temperatures for today and Wednesday.
Widely scattered showers and a few thunderstorms will develop
this afternoon and evening, with highest coverage expected to
occur to the east of Highway 29. Otherwise, morning clouds will
give way to a mixture of clouds and sunshine during the after-
noon, with minimum relative humidity holding above 40 percent.
Winds today will shift increasingly from the northwest, with
gusts during the afternoon increasing into the 10 mph to 15 mph
range. Increased coverage of wetting rainfall will return on
Thursday through Saturday as another front drifts slowly
across the lower Mid-Atlantic.
WVZ042-182030-
Mercer-
Including the cities of Bluefield and Flat Top
335 AM EDT Tue Aug 18 2026
Today Tonight Wed
Cloud Cover Pcldy Mclear Mclear
Precip Type Showers None None
Chance Precip (%) 20 0 0
Chance of Thunder (%) 0 0 0
Max/Min Temp 78 60 81
Min/Max RH % 64 100 52
Wind 20ft/early(mph) NW 4 NW 3 Lgt/Var
Wind 20ft/late(mph) NW 5 Lgt/Var NW 4
Precip Amount 0.00 0.00 0.00
Precip Duration 0
Precip Begin 6 AM
Precip End 3 PM
Mixing Hgt(ft-agl) 4010 5800
Transport Wnd (mph) NW 12 W 8
Vent Rate (mph-ft) 48120 46400
Dispersion Very Poor
Max ADI Early 33 Fair 47 Gen Good 29 Fair
Max ADI Late 54 Gen Good 4 Very Poor 51 Gen Good
Max LVORI Early 8 6 10
Max LVORI Late 3 10 2
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s. West winds
around 5 mph.
.THURSDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 80s. Minimum RH
68 percent. Southwest winds around 5 mph.
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. West winds around 5 mph.
.FRIDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs around 80. Minimum RH 72 percent. West winds
around 5 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 60s. Northwest winds around 5 mph.
.SATURDAY...Mostly cloudy with a chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 70 percent.
West winds around 5 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the lower 60s. West winds around
5 mph.
.SUNDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 70s. Minimum RH 64 percent. West
winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. West winds
around 5 mph.
.MONDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
57 percent. West winds around 5 mph.
.OUTLOOK 8 TO 14 DAYS...
Temperatures near normal. Precipitation above normal.