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Fire Weather Forecast Banner for Mercer County


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FNUS51 KRNK 181820
FWFRNK

Fire Weather Planning Forecast for SW VA...SE WV and NW NC
National Weather Service Blacksburg VA
220 PM EDT Tue Aug 18 2026

.DISCUSSION...

A cold front has passed across the lower Mid-Atlantic, 
resulting in seasonal temperatures for today and likely Wednesday. 
Widely scattered showers and a few thunderstorms will continue
to develop this afternoon and evening, with the highest coverage 
expected to occur to the east of Highway 29. Otherwise, a mixture 
of clouds and sunshine during the afternoon, 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.

WVZ042-190830-
Mercer-
Including the cities of Bluefield and Flat Top
220 PM EDT Tue Aug 18 2026

                      Tonight      Wed          Wed Night    Thu          

Cloud Cover           Mclear       Mclear       Mclear       Pcldy        
Precip Type           None         None         None         Tstms        
Chance Precip (%)     0            0            0            60           
Chance of Thunder (%) 0            0            0            50           
Min/Max Temp          60           83           63           81           
Max/Min RH %          100          50           93           67           
Wind 20ft/early(mph)  Lgt/Var      Lgt/Var      Lgt/Var      Lgt/Var      
Wind 20ft/late(mph)   Lgt/Var      Lgt/Var      Lgt/Var      W  4         
Precip Amount         0.00         0.00         0.00         0.03         
Precip Duration                                              4            
Precip Begin                                                 8 AM         
Precip End                                                   Continuing   
Mixing Hgt(ft-agl)                 4840                      4000         
Transport Wnd (mph)                NW 12                     W 31         
Vent Rate (mph-ft)                 58080                     124000       
Dispersion            Very Poor                 Very Poor                 
Max ADI Early         47 Gen Good  39 Fair      45 Gen Good  33 Fair      
Max ADI Late          3 Very Poor  60 Gen Good  2 Very Poor  115 Very Good
Max LVORI Early       9            9            5            7            
Max LVORI Late        9            1            7            3            

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. West winds
around 5 mph. 
.FRIDAY...Showers and a chance of thunderstorms. Highs in the
upper 70s. Minimum RH 77 percent. South winds around 5 mph. 
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 60s. South
winds around 5 mph. 
.SATURDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 67 percent.
West winds around 5 mph. 
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows around 60. West winds around 5 mph. 
.SUNDAY...Mostly sunny with a slight chance of showers. Highs in
the mid 70s. Minimum RH 63 percent. West winds 5 to 10 mph. 
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 5 mph. 
.MONDAY...Sunny. Highs in the upper 70s. Minimum RH 57 percent.
West winds around 5 mph. 
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. Northwest
winds around 5 mph. 
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. 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.