Heavy Rainfall and Severe Thunderstorms in the Midwest and Ohio Valley Tuesday

Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. Read More >

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Experimental...Fire Weather Planning Forecast for VA Natl Forests
NATIONAL WEATHER SERVICE Blacksburg VA
800 PM EDT Mon Aug 10 2026

.DISCUSSION...
Unsettled weather will persist throughout this week with daily 
chances of showers and thunderstorms, especially during the 
afternoon and evening hours. The air mass will remain humid 
with relative humidity values staying elevated. Winds may gust 
a little later this afternoon from the northwest across the 
mountains. Shower and thunderstorm coverage will increase on 
Tuesday and Wednesday with gusty winds and heavy rainfall 
possible. Due to the abundant moisture and prolonged chances of 
rain, fire weather concerns will remain low.

VAZ007-009-010-012-015-016-110800-
JEFFERSON NATIONAL FOREST South Zone-
INCLUDING Mt Rogers and Wythe
800 PM EDT Mon Aug 10 2026

                      Tonight      Tue          Tue Night    Wed          

Cloud Cover           Pcldy        Pcldy        Pcldy        Mcldy        
Precip Type           Tstms        Tstms        Tstms        Tstms        
Chance Precip (%)     20           30           60           50           
Chance of Thunder (%) 20           30           50           50           
Min/Max Temp          64           83           64           82           
Max/Min RH %          94           63           100          64           
Wind 20ft/early(mph)  W  6         W  6 G19     W  6 G18     W  8 G23     
Wind 20ft/late(mph)   W  5 G18     W  7 G18     W  7 G23     W  7 G17     
Precip Amount         0.05         0.05         0.13         0.08         
Precip Duration       1            1            2            2            
Precip Begin          8 PM         Continuing   Continuing   7 AM         
Precip End            Continuing   Continuing   6 AM         Continuing   
Mixing Hgt(ft-agl)                 3980                      3670         
Transport Wnd (mph)                W 20                      NW 16        
Vent Rate (mph-ft)                 79600                     58720        
Dispersion            Fair                      Good                      
Max ADI Early         46 Gen Good  30 Fair      34 Fair      28 Fair      
Max ADI Late          13 Gen Poor  71 Good      6 Very Poor  54 Gen Good  
Max LVORI Early       5            6            5            9            
Max LVORI Late        6            3            7            3            

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs around 80. Minimum RH 68 percent. West
winds 10 to 15 mph. 
.FRIDAY...Mostly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs around 80. Minimum RH 72 percent.
West winds 5 to 10 mph. 
.SATURDAY...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the upper 70s.
Minimum RH 71 percent. West winds around 5 mph. 
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 60s. Highs in the lower 80s. Minimum RH
64 percent. West winds 5 to 10 mph. 
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the upper 60s. Highs in the lower 80s. Minimum RH
66 percent. West winds 10 to 15 mph. 

$$

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

$$

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