Severe Thunderstorm and Flash Flooding Potential Returns Tuesday Afternoon and Evening

Thunderstorms Tuesday afternoon and evening could produce damaging winds and hail, particularly with a line that moves southeast ahead of an advancing cold front. A tornado or two, as well as Localized flash flooding, are also possible. There is a slight to enhanced Risk for Severe Storms, and a Slight Risk for Flash Flooding. Please keep updated on the forecast and have ways to receive warnings. Read More >

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 Fire Weather Planning Forecast
 National Weather Service Charleston WV
 148 PM EDT Mon Jul 20 2026
 
 .DISCUSSION...
 Dry conditions continue for the middle Ohio Valley today and 
 tonight, while showers and thunderstorms are possible in and near 
 the central Appalachians this afternoon and tonight.
 
 A potent system for mid Summer has the potential to bring impactful 
 severe weather to the area Tuesday. A high-end damaging wind threat, 
 hail, and the chance for tornadoes exist with an encouraging 
 environment for supercell formation as well as organized convection. 
 Timing currently appears to be Tuesday afternoon and evening in at 
 least two rounds. Flash flooding is also a concern with heavy 
 rainfall from thunderstorms, especially where heavy rainfall is most 
 persistent or repetitive.
 
 Drier and cooler weather arrives Wednesday behind this upcoming, 
 complicated severe weather event.
 
 
 Perry-
 Including the cities of New Lexington, Crooksville, and Somerset
 148 PM EDT Mon Jul 20 2026
 
                       Tonight      Tue          Tue Night    Wed          
 
 Cloud cover           Pcldy        Mcldy        Pcldy        Mclear       
 Precip type           None         Tstms        Tstms        None         
 Chance precip (%)     0            100          70           0            
 Chance of Thunder (%) 0            70           50           0            
 Min/Max TEMP          67           83           62           76           
 Max/Min RH %          90           66           100          55           
 20ftWnd-val/AM(mph)                SW  5 G18                 Lgt/Var      
 20ftWnd-rdg/PM(mph)   Lgt/Var      SW  8 G21    SW  5 G18    NW  7        
 Precip amount         0.00         0.64         0.29         0.00         
 Precip duration                    7            2                         
 Precip begin                       8 AM         Continuing                
 Precip end                         Continuing   2 AM                      
 Mixing hgt(ft-AGL/MSL)             2830                      5320         
 Transport wnd (mph)                SW 24                     NW 15        
 Vent rate (kt-ft)                  69500                     67180        
 Dispersion            VERY POOR                 POOR                      
 ADI early             1 VERY POOR  33 FAIR      21 FAIR      42 GEN GOOD  
 ADI late              3 VERY POOR  61 GOOD      2 VERY POOR  85 GOOD      
 Max LVORI early       5            6            7            9            
 Max LVORI late        6            3            9            1            
 
 Remarks...None.
 
 .FORECAST FOR DAYS 3 THROUGH 7...
 .THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
 70s. Northwest winds around 5 mph. 
 .FRIDAY...Partly cloudy. Lows in the upper 50s. Highs around 80.
 East winds around 5 mph. 
 .SATURDAY...Mostly cloudy. Lows in the lower 60s. Highs in the
 lower 80s. Southeast winds around 5 mph. 
 .SUNDAY...Partly cloudy. Lows in the mid 60s. Highs in the mid
 80s. Southwest winds around 5 mph. 
 .MONDAY...Partly cloudy. A chance of showers and thunderstorms.
 Lows in the mid 60s. Highs in the mid 80s. Southwest winds 5 to
 10 mph.

Radar