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	2.50 mi
Last update	09 Dec 12:25 PM PST

More Information:

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

Extended Forecast for

3 Miles ESE Snoqualmie Pass WA

Flood Watch December 9, 12:43pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 12:43pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
This Afternoon
High: 36 °F
Rain/Snow
Tonight
Low: 33 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 44 °F
Heavy Rain
Wednesday Night
Low: 35 °F
Rain/Snow
Thursday
High: 40 °F
Rain/Snow
Thursday Night
Low: 37 °F
Rain/Snow
Likely
Friday
High: 39 °F
Rain Likely
Friday Night
Low: 35 °F
Chance Rain
then Chance
Rain/Snow

Detailed Forecast

This Afternoon

Snow before 4pm, then snow, possibly mixed with rain. The rain and snow could be heavy at times. High near 36. West wind around 6 mph becoming south. Chance of precipitation is 90%. Total daytime snow accumulation of around an inch possible.

Tonight

Rain, possibly mixed with snow, becoming all rain after 10pm. The rain and snow could be heavy at times. Temperature rising to around 43 by 5am. South wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 44. West wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Wednesday Night

Rain, possibly mixed with snow. The rain could be heavy at times. Low around 35. West wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Thursday

Rain and snow. The rain could be heavy at times. High near 40. West wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Thursday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 37. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday

Rain likely, mainly before 10am. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.

Friday Night

A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.

Saturday

Rain likely, possibly mixed with snow, mainly after 4pm. Partly sunny, with a high near 40. Chance of precipitation is 60%.

Saturday Night

Rain and snow likely before 1am, then snow. Mostly cloudy, with a low around 32.

Sunday

Snow. Mostly cloudy, with a high near 35.