Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Flood Watch until December 12, 07:00 AM PST

Current conditions at

Stevens Pass - Tye Mill (STS54)

Lat: 47.73163°NLon: 121.0853°WElev: 5180.0ft.

31°F

-1°C

Humidity	NA
Wind Speed	E 0 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

8 Miles SSW Trinity WA

Flood Watch December 9, 11:50pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 11:50pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Tonight
Low: 32 °F⇑
Rain/Snow
Wednesday
High: 39 °F
Heavy Rain
then
Rain/Snow
Wednesday Night
Low: 31 °F
Rain/Snow and
Breezy
Thursday
High: 34 °F
Snow
Thursday Night
Low: 32 °F
Snow Likely
Friday
High: 36 °F
Snow Likely
then
Rain/Snow
Likely
Friday Night
Low: 32 °F
Chance
Rain/Snow
Saturday
High: 34 °F
Chance
Rain/Snow

Detailed Forecast

Tonight

Rain and snow, becoming all rain after 1am. The rain could be heavy at times. Temperature rising to around 38 by 5am. East wind 7 to 13 mph becoming southwest after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 7 inches possible.

Wednesday

Rain before 1pm, then rain and snow. The rain could be heavy at times. High near 39. West wind around 11 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Wednesday Night

Snow, possibly mixed with rain. The rain and snow could be heavy at times. Low around 31. Breezy, with a west wind 14 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Thursday

Snow. High near 34. West wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow likely. Mostly cloudy, with a low around 32. West wind around 11 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Friday

Snow likely before 1pm, then rain and snow likely. Mostly cloudy, with a high near 36. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Friday Night

A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 50%. Little or no snow accumulation expected.

Saturday

A chance of rain and snow. Partly sunny, with a high near 34. Chance of precipitation is 40%.

Saturday Night

Snow likely, possibly mixed with rain, mainly after 10pm. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

Sunday

Snow likely. Mostly cloudy, with a high near 33. Chance of precipitation is 70%.

Sunday Night

Snow likely. Mostly cloudy, with a low around 30. Chance of precipitation is 70%.

Monday

Snow, possibly mixed with rain. The snow could be heavy at times. High near 33. Chance of precipitation is 90%.