National Weather Service United States Department of Commerce

Heavy to Excessive Rainfall in the Central Appalachians; Severe Weather in the Mid-South; Hot Weather in Southern California

Heavy to excessive rainfall may lead to flooding today over southwest Pennsylvania into northern West Virginia, and western Maryland. Severe thunderstorms are possible this afternoon and evening in the Mid-South and across Eastern North Carolina. An extended period of hot weather is forecast for parts of coastal southern California including Los Angeles from today through Thursday. Read More >

TAM MCARTHUR RIM
 
 DATE                    WEDNESDAY 05/21/25                      THURSDAY 05/22/25                  
 TIME (LT)          05   08   11   14   17   20   23   02   05   08   11   14   17   20   23   02   05
                    5A   8A   11A  2P   5P   8P   11P  2A   5A   8A   11A  2P   5P   8P   11P  2A   5A   
 
 CLOUD COVER        FW   FW   SC   BK   OV   OV   SC   BK   OV   BK   BK   BK   SC   SC   SC   SC   SC
 CLOUD COVER (%)    25   25   35   60   75   80   45   60   70   60   65   55   40   50   30   45   40
 TEMPERATURE        26   33   43   48   48   41   36   33   32   34   36   39   40   36   31   30   29
 MAX/MIN TEMP                           49                  32                  40                  29
 WIND DIR            W    S    S    S   NW    W   SW   SW    W    W    W    W   NW   NW   NW    W    W
 WIND (MPH)          2    3    3    5    8    5    2    3    4    5    5    6    6    5    3    2    2
 WIND GUST (MPH)                                                                                      
 PRECIP PROB (%)     0    0   10   10   40   40   50   50   40   40   10   10    5    5    5    5    5
 PRECIP TYPE                             R    S    S    S    S    S    S    S                         
 6 HOUR QPF                 0.00      0.00      0.00      0.01      0.03      0.00      0.00      0.00
 6 HOUR SNOW                 0.0       0.0       0.0       0.0       0.2       0.0       0.0       0.0
 6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
 SNOW LEVEL (KFT)  4.7  5.9  7.1  8.0  8.5  8.2  7.5  7.2  6.6  6.5  6.7  7.0  7.0  6.9  6.6  6.4  6.1
 
 

--- PRECIP TYPE CODES --- 
CODE   TYPE
 T     THUNDERSTORMS
 R     RAIN
 S     SNOW
 I     SLEET
 Z     FREEZING RAIN