National Weather Service United States Department of Commerce

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

TAM MCARTHUR RIM
 
 DATE                    THURSDAY 01/01/26                       FRIDAY 01/02/26                    
 TIME (LT)          04   07   10   13   16   19   22   01   04   07   10   13   16   19   22   01   04
                    4A   7A   10A  1P   4P   7P   10P  1A   4A   7A   10A  1P   4P   7P   10P  1A   4A   
 
 CLOUD COVER        OV   OV   OV   OV   OV   OV   OV   OV   OV   OV   OV   OV   OV   OV   OV   OV   OV
 CLOUD COVER (%)    90   90   90   90   90   90   80   80   70   75   80   75   80   75   70   70   75
 TEMPERATURE        33   33   33   34   34   34   34   35   35   34   33   34   33   32   31   31   30
 MAX/MIN TEMP                           35                  33                  35                  30
 WIND DIR           SW   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW    S    S    S    S    S
 WIND (MPH)         10    9    9    8    9   11   13   14   14   12   11   11   11   17   20   23   21
 WIND GUST (MPH)                                                                          37   40   40
 PRECIP PROB (%)    90   90   80   90   80   90   70   80   50   50   20   20   20   20   50   50   80
 PRECIP TYPE         R    R    R    R    R    R    R    S    S    S    S    S    S    S    S    S    S
 6 HOUR QPF                 0.16      0.26      0.43      0.55      0.22      0.00      0.00      0.01
 6 HOUR SNOW                 0.1       0.1       0.1       0.5       0.7       0.0       0.0       0.1
 6 HOUR ICE                 0.00      0.00      0.00      0.01      0.00      0.00      0.00      0.00
 SNOW LEVEL (KFT)  8.2  8.0  8.4  8.5  8.2  7.8  7.6  7.3  7.1  6.9  6.9  6.9  6.7  6.4  6.1  6.1  5.8
 
 

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