
A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >
BROKEN TOP
DATE TUESDAY 12/09/25 WEDNESDAY 12/10/25
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 OV OV OV OV OV OV OV OV OV OV OV OV OV OV BK BK BK
CLOUD COVER (%) 85 80 75 75 75 80 80 80 80 75 75 70 70 75 65 60 65
TEMPERATURE 36 36 35 34 37 37 36 38 39 39 40 40 39 39 38 39 37
MIN/MAX TEMP 33 39 37 39
WIND DIR W W W W W W W W W W W W W W SW W W
WIND (MPH) 28 34 36 36 35 28 20 20 20 25 27 28 27 26 21 20 17
WIND GUST (MPH) 55 64 71 71 67 57 41 41 41 48 54 56 57 51 43 40
PRECIP PROB (%) 70 40 50 90 90 90 90 90 90 90 70 70 70 70 50 50 50
PRECIP TYPE R R R R R R R R R R R R R R R R R
6 HOUR QPF 0.30 0.32 0.60 0.77 0.53 0.17 0.18 0.02
6 HOUR SNOW 0.1 0.1 0.1 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) 8.6 8.4 8.3 9.3 9.4 9.2 9.6 9.6 9.8 9.8 9.2 9.0 8.8 8.6 8.5 8.3 8.2
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN