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.

freezing fog

31°F

-1°C

Humidity	100%
Wind Speed	NA 4 MPH
Barometer	30.04 in (1017.27 mb)
Dewpoint	31°F (-1°C)
Visibility	0.50 mi
Wind Chill	27°F (-3°C)
Last update	09 Dec 07:56 AM PST

More Information:

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

Extended Forecast for

2 Miles SSE Snoqualmie Pass WA

Flood Watch December 9, 08:10am until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 08:10am until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Today
High: 40 °F
Slight Chance
Rain/Snow
then
Rain/Snow
Tonight
Low: 37 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 48 °F
Heavy Rain
Wednesday Night
Low: 41 °F
Heavy Rain
Thursday
High: 45 °F
Heavy Rain
Thursday Night
Low: 40 °F
Rain Likely
Friday
High: 47 °F
Rain Likely
Friday Night
Low: 38 °F
Chance Rain

Detailed Forecast

Today

A slight chance of rain and snow before 1pm, then rain between 1pm and 4pm, then rain, possibly mixed with snow after 4pm. High near 40. Light and variable wind. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tonight

Rain, possibly mixed with snow, becoming all rain after 7pm. The rain could be heavy at times. Temperature rising to around 46 by 4am. Light and variable wind becoming west 5 to 7 mph in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday

Rain. The rain could be heavy at times. High near 48. West wind 7 to 9 mph, with gusts as high as 24 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 41. West wind 6 to 9 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Thursday

Rain. The rain could be heavy at times. High near 45. West wind around 6 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

Thursday Night

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

Friday

Rain likely, mainly before 10am. Mostly cloudy, with a high near 47. 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 47. Chance of precipitation is 60%.

Saturday Night

Rain. Mostly cloudy, with a low around 37.

Sunday

Rain. Mostly cloudy, with a high near 42.