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

15 Miles S Stevens Pass WA

Flood Watch December 9, 08:33pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 08:33pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Tonight
Low: 37 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 48 °F
Heavy Rain
Wednesday Night
Low: 38 °F
Heavy Rain
Thursday
High: 45 °F
Rain/Snow
Thursday Night
Low: 36 °F
Rain/Snow
Likely
Friday
High: 47 °F
Rain/Snow
Likely
Friday Night
Low: 36 °F
Chance Rain
Saturday
High: 46 °F
Chance Rain

Detailed Forecast

Tonight

Rain, possibly mixed with snow, becoming all rain after 10pm. The rain could be heavy at times. Temperature rising to around 42 by 4am. Southwest wind 5 to 7 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 48. West wind 14 to 17 mph, with gusts as high as 33 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 38. West wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Thursday

Rain, possibly mixed with snow. High near 45. West wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Rain and snow likely. Mostly cloudy, with a low around 36. West wind around 6 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday

Rain likely, possibly mixed with snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 60%. Little or no snow accumulation expected.

Friday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 36.

Saturday

A 30 percent chance of rain. Partly sunny, with a high near 46.

Saturday Night

Rain likely, mainly after 10pm. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

Sunday

Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 43.

Sunday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 33.

Monday

Rain, possibly mixed with snow. Mostly cloudy, with a high near 44.