Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Hazardous Weather Conditions

Flood Watch until December 12, 07:00 AM PST

Current conditions at

Stampede Pass (KSMP)

Lat: 47.27648°NLon: 121.33817°WElev: 3970.0ft.

Mostly Cloudy

33°F

1°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	30.07 in (1018.29 mb)
Dewpoint	33°F (1°C)
Visibility	8.00 mi
Last update	09 Dec 12:56 PM PST

More Information:

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

Extended Forecast for

5 Miles SSW Snoqualmie Pass WA

Flood Watch December 9, 01:44pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 01:44pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
This Afternoon
High: 37 °F
Rain/Snow
Tonight
Low: 34 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 45 °F
Heavy Rain
and Breezy
Wednesday Night
Low: 36 °F
Heavy Rain
and Breezy
Thursday
High: 39 °F
Rain/Snow
Thursday Night
Low: 37 °F
Rain/Snow
Friday
High: 40 °F
Rain/Snow
Likely
Friday Night
Low: 36 °F
Chance Rain

Detailed Forecast

This Afternoon

Rain, possibly mixed with snow. High near 37. Southeast wind around 5 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

Tonight

Rain, possibly mixed with snow, becoming all rain after 7pm. The rain could be heavy at times. Temperature rising to around 45 by 4am. Southeast wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Wednesday

Rain. The rain could be heavy at times. High near 45. Breezy, with a west wind 20 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between 3 and 4 inches possible.

Wednesday Night

Rain. The rain could be heavy at times. Low around 36. Breezy, with a west wind around 25 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Thursday

Rain and snow. High near 39. West wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday Night

Rain, possibly mixed with snow. Low around 37. Chance of precipitation is 80%. Little or no snow accumulation expected.

Friday

Rain likely, possibly mixed with snow, becoming all rain after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 36.

Saturday

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

Saturday Night

Rain, mainly after 10pm. Mostly cloudy, with a low around 34.

Sunday

Rain, possibly mixed with snow. Mostly cloudy, with a high near 36.

Sunday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 34.

Monday

Rain, possibly mixed with snow. Mostly cloudy, with a high near 37.