Jefferson National Forest Presuppresion Forecast

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Experimental...Fire Weather Planning Forecast for VA Natl Forests
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri Jul 18 2025

.DISCUSSION...

A stalled frontal boundary will continue to drape across the 
area today and into the weekend, which will allow widespread
showers/storms to develop in the early afternoon due to diurnal
heating. High moisture content will cause storms to produce heavy
rainfall, with flash flooding a daily possibility across the entire 
area. Isolated damaging winds are also possible with the strongest 
storms. The front moves back north out of the area on Sunday, but 
the summer-time pattern of afternoon storms will continue into early 
next week, but storms will be more scattered in nature. A cold front 
moves through the area on Tuesday, with drier conditions expected 
heading into the middle of next week. Winds mostly remain light, 
though Sunday will have gusts of 15-20 mph along/west of the Blue 
Ridge. Warm and humid conditions persist for the next several days.

VAZ007-010>014-018-022-023-WVZ044-190800-
JEFFERSON NATIONAL FOREST Eastern Divide Zone-
INCLUDING Blacksburg and New Castle
801 PM EDT Fri Jul 18 2025

                      Tonight      Sat          Sat Night    Sun          

Cloud Cover           Pcldy        Pcldy        Pcldy        Pcldy        
Precip Type           Tstms        Tstms        Tstms        Tstms        
Chance Precip (%)     50           80           70           60           
Chance of Thunder (%) 50           70           50           50           
Min/Max Temp          64           86           66           87           
Max/Min RH %          100          64           97           58           
Wind 20ft/early(mph)  Lgt/Var      Lgt/Var      Lgt/Var      W  5 G17     
Wind 20ft/late(mph)   Lgt/Var      Lgt/Var      Lgt/Var      W  6         
Precip Amount         0.11         0.16         0.10         0.07         
Precip Duration       1            4            3            4            
Precip Begin          6 PM         Continuing   Continuing   Continuing   
Precip End            Continuing   Continuing   Continuing   Continuing   
Mixing Hgt(ft-agl)                 3540                      4180         
Transport Wnd (mph)                W  9                      NW 18        
Vent Rate (mph-ft)                 31860                     75240        
Dispersion            Very Poor                 Poor                      
Max ADI Early         16 Gen Poor  23 Fair      23 Fair      66 Good      
Max ADI Late          1 Very Poor  36 Fair      6 Very Poor  72 Good      
Max LVORI Early       7            9            5            6            
Max LVORI Late        10           3            6            2            

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY...Mostly cloudy. Showers likely and a chance of
thunderstorms. Lows in the upper 60s. Highs in the lower 80s.
Minimum RH 67 percent. Northwest winds 5 to 10 mph. 
.TUESDAY...Mostly cloudy. A chance of showers. Lows in the mid
60s. Highs around 80. Minimum RH 73 percent. Southeast winds
around 5 mph. 
.WEDNESDAY...Partly cloudy. A chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the lower 80s.
Minimum RH 67 percent. South winds around 5 mph. 
.THURSDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the upper 80s. Minimum RH
64 percent. Southwest winds around 5 mph. 
.FRIDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the upper 80s. Minimum RH
61 percent. West winds around 5 mph. 

$$

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

$$

Radar