A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >
TAM MCARTHUR RIM
DATE WEDNESDAY 12/10/25 THURSDAY 12/11/25
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 BK OV OV BK BK BK BK BK BK BK OV SC SC SC FW FW SC
CLOUD COVER (%) 65 70 70 65 65 60 60 60 60 70 70 50 40 30 25 20 25
TEMPERATURE 39 38 38 39 38 36 35 34 34 35 39 42 39 35 36 35 35
MAX/MIN TEMP 40 33 42 33
WIND DIR W SW W W W SW SW W W W W W W W SW SW SW
WIND (MPH) 33 29 25 25 20 21 23 23 21 17 13 10 4 5 9 10 11
WIND GUST (MPH) 52 48
PRECIP PROB (%) 30 40 20 5 10 5 10 20 20 20 10 10 5 5 0 0 0
PRECIP TYPE R R R S S S
6 HOUR QPF 0.12 0.01 0.00 0.00 0.01 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 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) 8.4 8.3 8.0 7.9 7.5 7.3 7.2 7.1 7.7 8.1 8.1 8.3 8.1 7.8 7.5 7.3 7.1
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN
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