Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Hazardous Weather Conditions

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	NA 6 MPH
Barometer	29.85 in (1010.84 mb)
Dewpoint	45°F (7°C)
Visibility	0.75 mi
Wind Chill	42°F (6°C)
Last update	08 Dec 03:11 PM 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 until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
This Afternoon
High: 43 °F
Heavy Rain
Tonight
Low: 29 °F
Rain/Snow
Tuesday
High: 37 °F
Snow Likely
then
Rain/Snow
Tuesday Night
Low: 31 °F
Rain/Snow
then Heavy
Rain
Wednesday
High: 44 °F
Rain/Snow
Wednesday Night
Low: 35 °F
Rain/Snow
Thursday
High: 41 °F
Rain/Snow
Thursday Night
Low: 35 °F
Rain/Snow
Likely

Detailed Forecast

This Afternoon

Rain. The rain could be heavy at times. High near 43. Southwest wind around 13 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Tonight

Rain, possibly mixed with snow. The rain could be heavy at times. Low around 29. Northwest wind 11 to 16 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Tuesday

Snow likely before 1pm, then snow, possibly mixed with rain. High near 37. South wind 5 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Tuesday Night

Rain, possibly mixed with snow, becoming all rain after 10pm. The rain could be heavy at times. Low around 31. West wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Wednesday

Rain, possibly mixed with snow. The rain could be heavy at times. High near 44. West wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday Night

Rain, possibly mixed with snow. Low around 35. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday

Rain, possibly mixed with snow. High near 41. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Rain likely, possibly mixed with snow before 7pm, then rain likely between 7pm and 1am, then a chance of rain and snow after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.

Friday

A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.

Friday Night

A chance of rain. Mostly cloudy, with a low around 35.

Saturday

Rain likely. Partly sunny, with a high near 43.

Saturday Night

Rain and snow. Mostly cloudy, with a low around 32.

Sunday

Rain and snow. Mostly cloudy, with a high near 38.

Sunday Night

Rain and snow likely. Mostly cloudy, with a low around 30.