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,mist

45°F

7°C

Humidity	100%
Wind Speed	WSW 4 MPH
Barometer	29.88 in (1011.85 mb)
Dewpoint	45°F (7°C)
Visibility	0.75 mi
Wind Chill	43°F (6°C)
Last update	10 Dec 04:30 AM PST

More Information:

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

Extended Forecast for

14 Miles S Stevens Pass WA

Flood Watch December 10, 04:46am until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 10, 04:46am until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Overnight
Low: 39 °F
Heavy Rain
and Breezy
Wednesday
High: 42 °F
Heavy Rain
Wednesday Night
Low: 32 °F
Breezy. Heavy
Rain then
Rain/Snow
Thursday
High: 38 °F
Rain/Snow
then Snow
Thursday Night
Low: 32 °F
Snow Likely
Friday
High: 39 °F
Rain Likely
Friday Night
Low: 31 °F
Chance
Rain/Snow
Saturday
High: 42 °F
Slight Chance
Rain

Detailed Forecast

Overnight

Rain. The rain could be heavy at times. Steady temperature around 39. Breezy, with a west wind around 22 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Wednesday

Rain. The rain could be heavy at times. High near 42. Southwest wind 18 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Wednesday Night

Rain before 1am, then snow, possibly mixed with rain. The rain could be heavy at times. Low around 32. Breezy, with a west wind around 25 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. High near 38. West wind 14 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Thursday Night

Snow likely. Mostly cloudy, with a low around 32. West wind around 10 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday

Rain likely, mainly before 4pm. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.

Friday Night

A chance of rain and snow before 1am, then a slight chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.

Saturday

A 20 percent chance of rain. Partly sunny, with a high near 42.

Saturday Night

Rain, mainly after 4am. Low around 32. Chance of precipitation is 80%.

Sunday

Rain, possibly mixed with snow. Mostly cloudy, with a high near 37.