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

5 Miles S Snoqualmie Pass WA

Flood Watch December 9, 12:17pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 12:17pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
This Afternoon
High: 38 °F
Rain/Snow
Tonight
Low: 34 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 46 °F
Heavy Rain
Wednesday Night
Low: 40 °F
Heavy Rain
Thursday
High: 42 °F
Rain
Thursday Night
Low: 39 °F
Rain Likely
Friday
High: 44 °F
Rain Likely
Friday Night
Low: 38 °F
Chance Rain

Detailed Forecast

This Afternoon

Rain and snow, mainly after 1pm. High near 38. 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 45 by 4am. Southeast wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 30 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 46. West wind 7 to 9 mph, with gusts as high as 29 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 28 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Thursday

Rain. High near 42. West wind around 7 mph, with gusts as high as 24 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 39. Chance of precipitation is 70%.

Friday

Rain likely, mainly before 10am. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.

Friday Night

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

Saturday

Rain likely, mainly after 4pm. Partly sunny, with a high near 45. Chance of precipitation is 60%.

Saturday Night

Rain. Mostly cloudy, with a low around 36.

Sunday

Rain, possibly mixed with snow. Mostly cloudy, with a high near 39.