A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >
TAM MCARTHUR RIM
DATE THURSDAY 12/25/25 FRIDAY 12/26/25
TIME (LT) 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16
4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P
CLOUD COVER SC BK OV OV OV OV BK BK OV BK OV OV BK OV OV OV OV
CLOUD COVER (%) 30 55 70 80 85 75 65 70 80 70 75 80 60 75 80 75 75
TEMPERATURE 28 25 25 25 24 27 29 28 27 24 24 24 24 24 25 25 23
MIN/MAX TEMP 23 30 23 26
WIND DIR SW S S S S S S S S S S S SW SW SW SW W
WIND (MPH) 9 13 9 11 14 21 25 23 18 19 19 19 21 23 23 25 23
WIND GUST (MPH) 35 42 42 42 39 41 40
PRECIP PROB (%) 5 10 20 50 30 50 60 40 50 50 70 70 80 80 90 90 80
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.00 0.07 0.08 0.06 0.03 0.11 0.19 0.19
6 HOUR SNOW 0.0 0.6 0.7 0.6 0.4 1.4 2.4 2.5
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 4.6 4.8 4.6 4.8 5.2 5.3 5.1 4.7 4.4 4.1 4.0 4.0 3.9 3.6 3.6 3.2 2.9
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN
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