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

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

37°F

3°C

Humidity	94%
Wind Speed	WNW 1 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Last update	09 Dec 10:01 PM PST

More Information:

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

Extended Forecast for

4 Miles WNW Trinity WA

Flood Watch December 9, 10:15pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 10:15pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Tonight
Low: 27 °F⇑
Heavy Snow
then
Rain/Snow
Wednesday
High: 34 °F
Rain/Snow
then Heavy
Snow
Wednesday Night
Low: 26 °F
Heavy Snow
and Windy
Thursday
High: 28 °F
Snow and
Breezy
Thursday Night
Low: 27 °F
Snow Likely
Friday
High: 31 °F
Snow
Friday Night
Low: 26 °F
Snow Likely
and Breezy
Saturday
High: 30 °F
Chance Snow

Detailed Forecast

Tonight

Rain and snow. The rain and snow could be heavy at times. Temperature rising to around 33 by 2am. Southwest wind 10 to 17 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 11 to 17 inches possible.

Wednesday

Snow, possibly mixed with rain, becoming all snow after noon. The rain and snow could be heavy at times. High near 34. Light west wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 15 to 21 inches possible.

Wednesday Night

Snow. The snow could be heavy at times. Low around 26. Windy, with a west wind 11 to 16 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.

Thursday

Snow. High near 28. Breezy, with a west wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Thursday Night

Snow likely. Mostly cloudy, with a low around 27. West wind around 15 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Friday

Snow. High near 31. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 26. Breezy. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday

A 40 percent chance of snow. Partly sunny, with a high near 30.

Saturday Night

Snow, mainly after 10pm. Low around 25. Chance of precipitation is 80%.

Sunday

Snow. High near 28. Chance of precipitation is 80%.

Sunday Night

Snow likely. Mostly cloudy, with a low around 25. Chance of precipitation is 70%.

Monday

Snow. The snow could be heavy at times. High near 28. Chance of precipitation is 90%.

Monday Night

Snow. The snow could be heavy at times. Low around 24. Breezy. Chance of precipitation is 90%.