Jefferson National Forest Presuppresion Forecast

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Experimental...Fire Weather Planning Forecast for VA Natl Forests
NATIONAL WEATHER SERVICE Blacksburg VA
230 AM EDT Tue Sep 22 2026

.DISCUSSION...

Unsettled weather is expected early this week with several
rounds of showers bringing some much needed rainfall.
Rainfall amounts may average around an inch or so for much
of the area through Wednesday. Cooler temperatures follow
for mid to late week. Fire concerns will be low this week.

VAZ007-009-010-012-015-016-230800-
JEFFERSON NATIONAL FOREST South Zone-
INCLUDING Mt Rogers and Wythe
230 AM EDT Tue Sep 22 2026

                      Tonight      Wed          Wed Night    Thu          

Cloud Cover           Mcldy        Mcldy        Mcldy        Mcldy        
Precip Type           Tstms        Showers      Rain         None         
Chance Precip (%)     70           60           80           0            
Chance of Thunder (%) 50           0            0            0            
Min/Max Temp          54           62           48           61           
Max/Min RH %          100          91           100          84           
Wind 20ft/early(mph)  Lgt/Var      E  6         E  7 G21     E  5         
Wind 20ft/late(mph)   E  6         E  6         E  7 G21     Lgt/Var      
Precip Amount         0.35         0.26         0.24         0.00         
Precip Duration       4            3            10                        
Precip Begin          6 PM         Continuing   Continuing                
Precip End            Continuing   Continuing   6 AM                      
Mixing Hgt(ft-agl)                 1890                      2540         
Transport Wnd (mph)                E 15                      NE  5        
Vent Rate (mph-ft)                 28350                     12700        
Dispersion            Fair                      Good                      
Max ADI Early         10 Poor      17 Gen Poor  22 Fair      15 Gen Poor  
Max ADI Late          9 Poor       27 Fair      11 Poor      18 Gen Poor  
Max LVORI Early       6            8            8            7            
Max LVORI Late        7            5            7            5            

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY...Partly cloudy. Lows in the mid 40s. Highs in the mid
60s. Minimum RH 60 percent. North winds around 5 mph. 
.SATURDAY...Mostly clear. Lows in the lower 40s. Highs in the mid
60s. Minimum RH 52 percent. Northwest winds 5 to 10 mph. 
.SUNDAY...Mostly clear. Lows in the mid 40s. Highs in the mid
60s. Minimum RH 53 percent. Northwest winds 5 to 10 mph. 
.MONDAY...Partly cloudy. Lows in the mid 40s. Highs in the upper
60s. Minimum RH 55 percent. Northwest winds around 5 mph. 
.TUESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. Minimum RH 60 percent. South winds around 5 mph. 

$$

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

$$

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