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.

29°F

-2°C

Humidity	NA
Wind Speed	E 4 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Wind Chill	25°F (-4°C)
Last update	NA

More Information:

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

Extended Forecast for

9 Miles W Plain WA

Flood Watch December 9, 11:26pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 11:26pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Tonight
Low: 33 °F⇑
Rain/Snow and
Breezy
Wednesday
High: 40 °F
Heavy Rain
and Windy
Wednesday Night
Low: 32 °F
Windy. Heavy
Rain then
Rain/Snow
Thursday
High: 34 °F
Rain/Snow and
Breezy then
Snow Likely
Thursday Night
Low: 32 °F
Snow Likely
Friday
High: 37 °F
Snow Likely
then
Rain/Snow
Likely
Friday Night
Low: 33 °F
Chance
Rain/Snow and
Breezy
Saturday
High: 35 °F
Chance
Rain/Snow

Detailed Forecast

Tonight

Rain, possibly mixed with snow, becoming all rain after 1am. The rain could be heavy at times. Temperature rising to around 39 by 4am. Breezy, with a west wind 8 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 5 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 40. Windy, with a west wind 21 to 28 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts in excess of 4 inches possible.

Wednesday Night

Rain before 1am, then rain and snow. The rain could be heavy at times. Low around 32. Windy, with a west wind around 32 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Thursday

Snow, possibly mixed with rain, becoming all snow after 10am. High near 34. Breezy, with a west wind 15 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Thursday Night

Snow likely. Mostly cloudy, with a low around 32. West wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Friday

Snow likely before 1pm, then rain likely, possibly mixed with snow between 1pm and 4pm, then rain likely after 4pm. Mostly cloudy, with a high near 37. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Friday Night

A chance of rain before 7pm, then a chance of rain and snow. Mostly cloudy, with a low around 33. Breezy. Chance of precipitation is 50%. Little or no snow accumulation expected.

Saturday

A chance of rain and snow. Partly sunny, with a high near 35. Chance of precipitation is 30%.

Saturday Night

A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.

Sunday

Snow likely, possibly mixed with rain, becoming all snow after 7am. Mostly cloudy, with a high near 33. Chance of precipitation is 70%.

Sunday Night

Snow likely, possibly mixed with rain. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.

Monday

Snow, possibly mixed with rain. High near 32. Chance of precipitation is 80%.

Monday Night

Snow, possibly mixed with rain. Low around 30. Breezy. Chance of precipitation is 90%.