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.

unknown precip,fog

32°F

0°C

Humidity	100%
Wind Speed	NA NA MPH
Barometer	29.98 in (1015.24 mb)
Dewpoint	32°F (0°C)
Visibility	0.50 mi
Last update	09 Dec 07:56 PM PST

More Information:

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

Extended Forecast for

13 Miles SE Skykomish WA

Flood Watch December 9, 08:59pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 08:59pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Tonight
Low: 30 °F⇑
Rain/Snow
Wednesday
High: 37 °F
Rain/Snow and
Windy
Wednesday Night
Low: 28 °F
Rain/Snow and
Windy
Thursday
High: 31 °F
Snow and
Breezy
Thursday Night
Low: 28 °F
Snow
Friday
High: 33 °F
Snow Likely
Friday Night
Low: 29 °F
Chance Snow
Saturday
High: 32 °F
Chance Snow

Detailed Forecast

Tonight

Rain and snow, becoming all rain after 1am. The rain could be heavy at times. Temperature rising to around 36 by 5am. West wind 11 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 7 inches possible.

Wednesday

Rain before 7am, then rain, possibly mixed with snow between 7am and 4pm, then rain after 4pm. The rain could be heavy at times. High near 37. Windy, with a west wind 28 to 30 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Wednesday Night

Rain before 10pm, then rain and snow between 10pm and 1am, then snow after 1am. The rain and snow could be heavy at times. Low around 28. Windy, with a west wind around 34 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Thursday

Snow. High near 31. Breezy, with a west wind 16 to 26 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Thursday Night

Snow. Low around 28. West wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Friday

Snow likely. Mostly cloudy, with a high near 33. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Friday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 29. New snow accumulation of less than a half inch possible.

Saturday

A 40 percent chance of snow. Mostly cloudy, with a high near 32.

Saturday Night

Snow, mainly after 10pm. Low around 27. Chance of precipitation is 80%.

Sunday

Snow. Mostly cloudy, with a high near 28.

Sunday Night

Snow. Mostly cloudy, with a low around 25.