Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. 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.

rain,mist

47°F

8°C

Humidity	100%
Wind Speed	WSW 8 MPH
Barometer	29.9 in (1012.53 mb)
Dewpoint	47°F (8°C)
Visibility	0.75 mi
Wind Chill	43°F (6°C)
Last update	10 Dec 11:56 AM PST

More Information:

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

Extended Forecast for

14 Miles ENE Snoqualmie Pass WA

Flood Watch December 10, 12:54pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 10, 12:54pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
This Afternoon
High: 40 °F
Heavy Rain
and Breezy
Tonight
Low: 31 °F
Breezy. Heavy
Rain then
Rain/Snow
Thursday
High: 32 °F
Rain/Snow
then Snow
Thursday Night
Low: 31 °F
Snow Likely
Friday
High: 36 °F
Rain/Snow
Likely
Friday Night
Low: 32 °F
Chance
Rain/Snow
Saturday
High: 40 °F
Chance Rain
Saturday Night
Low: 32 °F
Rain Likely
then
Rain/Snow

Detailed Forecast

This Afternoon

Rain. The rain could be heavy at times. High near 40. Breezy, with a west wind around 22 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tonight

Rain before 1am, then snow, possibly mixed with rain. The rain could be heavy at times. Low around 31. Breezy, with a west wind around 29 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Thursday

Snow, possibly mixed with rain, becoming all snow after 7am. Steady temperature around 32. West wind 14 to 21 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow likely. Mostly cloudy, with a low around 31. West wind around 10 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Friday

Rain likely, possibly mixed with snow, mainly before 4pm. Mostly cloudy, with a high near 36. West wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday Night

A chance of rain and snow before 10pm, then a slight chance of snow between 10pm and 1am, then a slight chance of rain after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.

Saturday

A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 40.

Saturday Night

Rain likely before 1am, then rain, possibly mixed with snow. Low around 32. Chance of precipitation is 80%.

Sunday

Rain, possibly mixed with snow, becoming all snow after 10am. High near 34. Chance of precipitation is 80%.

Sunday Night

Snow. Mostly cloudy, with a low around 32.

Monday

Rain and snow. Mostly cloudy, with a high near 35.

Monday Night

Rain and snow. The snow could be heavy at times. Mostly cloudy, with a low around 29.