Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. 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,fog

37°F

3°C

Humidity	100%
Wind Speed	N 3 MPH
Barometer	29.9 in (1012.53 mb)
Dewpoint	37°F (3°C)
Visibility	0.50 mi
Last update	10 Dec 12:56 AM PST

More Information:

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

Extended Forecast for

5 Miles ESE Snoqualmie Pass WA

Flood Watch December 10, 01:19am until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 10, 01:19am until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Overnight
Low: 33 °F
Heavy Rain
Wednesday
High: 45 °F
Heavy Rain
Wednesday Night
Low: 34 °F
Heavy Rain
then
Rain/Snow
Thursday
High: 40 °F
Rain/Snow
Thursday Night
Low: 36 °F
Rain/Snow
Likely
Friday
High: 40 °F
Rain/Snow
Likely then
Rain Likely
Friday Night
Low: 35 °F
Chance Rain
Saturday
High: 44 °F
Chance Rain

Detailed Forecast

Overnight

Rain. The rain could be heavy at times. Low around 33. Southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 45. West wind 17 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Wednesday Night

Rain before 4am, then rain, possibly mixed with snow. The rain could be heavy at times. Low around 34. West wind around 21 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday

Rain, possibly mixed with snow. High near 40. West wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 36. West wind around 7 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday

Rain likely, possibly mixed with snow, becoming all rain after 7am. Mostly cloudy, with a high near 40. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday Night

A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 35.

Saturday

A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 44.

Saturday Night

Rain, mainly after 10pm. Low around 35. Chance of precipitation is 80%.

Sunday

Rain. Mostly cloudy, with a high near 38.

Sunday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 34.

Monday

Rain, possibly mixed with snow. Mostly cloudy, with a high near 40.