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

Current conditions at

Stampede Pass (KSMP)

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

Mist

32°F

0°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	30.08 in (1018.63 mb)
Dewpoint	32°F (0°C)
Visibility	1.75 mi
Last update	09 Dec 12:11 PM PST

More Information:

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

Extended Forecast for

6 Miles E Snoqualmie Pass WA

Flood Watch December 9, 12:23pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 12:23pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
This Afternoon
High: 39 °F
Rain/Snow
Tonight
Low: 36 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 47 °F
Heavy Rain
Wednesday Night
Low: 40 °F
Heavy Rain
Thursday
High: 44 °F
Rain
Thursday Night
Low: 40 °F
Rain Likely
Friday
High: 46 °F
Chance Rain
Friday Night
Low: 38 °F
Chance Rain

Detailed Forecast

This Afternoon

Snow, possibly mixed with rain, mainly after 1pm. The rain could be heavy at times. High near 39. Light and variable wind. 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 10pm. The rain could be heavy at times. Temperature rising to around 44 by 4am. Southeast wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 25 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 47. West wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Wednesday Night

Rain. The rain could be heavy at times. Low around 40. West wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Thursday

Rain. High near 44. West wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

Thursday Night

Rain likely. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.

Friday

A 50 percent chance of rain. Mostly cloudy, with a high near 46.

Friday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 38.

Saturday

A 40 percent chance of rain. Partly sunny, with a high near 46.

Saturday Night

Rain likely. Mostly cloudy, with a low around 36.

Sunday

Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 41.