Jefferson National Forest Presuppresion Forecast

News Headlines

Experimental...Fire Weather Planning Forecast for VA Natl Forests
NATIONAL WEATHER SERVICE Blacksburg VA
930 AM EDT Mon May 18 2026

.DISCUSSION...

Hot and dry conditions look to linger across the region through
Tuesday this week and parts of the Piedmont for Wednesday, until 
a cold front brings in daily chances for showers and thunderstorms. 
Prior to this moisture entering the area, hot and dry conditions 
areawide will lead to minimum RH values mainly falling into the 
30s/40s today, and 20s/30s on Tuesday, with an increase mainly 
for the mountains by Wednesday as the aforementioned cold front 
arrives and advects moisture north. Overall, with winds remaining 
mainly under 12 mph, the fire weather concerns look to remain low 
for much of the area at this time even though conditions will be 
hot and dry early this week.


&&

VAZ007-010>014-018-022-023-WVZ044-182000-
JEFFERSON NATIONAL FOREST Eastern Divide Zone-
INCLUDING Blacksburg and New Castle
930 AM EDT Mon May 18 2026

                      Today        Tonight      Tue          

Cloud Cover           Mclear       Mclear       Pcldy        
Precip Type           None         None         None         
Chance Precip (%)     0            0            0            
Chance of Thunder (%) 0            0            0            
Max/Min Temp          91           60           93           
Min/Max RH %          32           78           27           
Wind 20ft/early(mph)  Lgt/Var      Lgt/Var      Lgt/Var      
Wind 20ft/late(mph)   Lgt/Var      Lgt/Var      Lgt/Var      
Precip Amount         0.00         0.00         0.00         
Precip Duration                                              
Precip Begin                                                 
Precip End                                                   
Mixing Hgt(ft-agl)    8130                      11170        
Transport Wnd (mph)   SW 12                     SW 13        
Vent Rate (mph-ft)    97560                     145210       
Dispersion                         Poor                      
Max ADI Early         29 Fair      89 Good      65 Good      
Max ADI Late          107 Very Good3 Very Poor  127 Very Good
Max LVORI Early       5            3            4            
Max LVORI Late        1            3            1            

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY...Partly cloudy. Showers likely and a chance of
thunderstorms. Lows in the mid 60s. Highs in the mid 80s. Minimum
RH 44 percent. West winds 5 to 10 mph. 
.THURSDAY...Showers. Not as warm. Lows around 60. Highs in the
lower 70s. Minimum RH 71 percent. East winds 5 to 10 mph. 
.FRIDAY...Mostly cloudy with showers likely. Lows in the lower
50s. Highs in the mid 60s. Minimum RH 78 percent. Southeast winds
10 to 15 mph. 
.SATURDAY...Showers and a chance of thunderstorms. Warmer. Lows
in the mid 50s. Highs in the mid 70s. Minimum RH 71 percent.
South winds 10 to 15 mph. 
.SUNDAY...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Highs in the upper 70s. Minimum RH
66 percent. West winds around 5 mph. 

$$

.OUTLOOK 8 TO 14 DAYS...
Temperatures above normal.  Precipitation above normal.

$$

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