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.

unknown precip,mist

33°F

1°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	29.99 in (1015.58 mb)
Dewpoint	33°F (1°C)
Visibility	1.50 mi
Last update	08 Dec 09:56 AM PST

More Information:

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

Extended Forecast for

11 Miles E Snoqualmie 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
Today
High: 48 °F
Heavy Rain
Tonight
Low: 34 °F
Rain/Snow
Tuesday
High: 42 °F
Rain/Snow
Tuesday Night
Low: 37 °F
Rain/Snow
then Heavy
Rain
Wednesday
High: 49 °F
Heavy Rain
Wednesday Night
Low: 41 °F
Rain
Thursday
High: 47 °F
Rain
Thursday Night
Low: 42 °F
Rain Likely

Detailed Forecast

Today

Rain. The rain could be heavy at times. High near 48. Southwest wind 9 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tonight

Rain before 10pm, then snow, possibly mixed with rain. The rain could be heavy at times. Low around 34. West wind 13 to 15 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Tuesday

Rain and snow before 7am, then rain between 7am and 1pm, then rain and snow after 1pm. High near 42. Southwest wind 3 to 8 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tuesday Night

Rain and snow, becoming all rain after 7pm. The rain could be heavy at times. Low around 37. South wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday

Rain. The rain could be heavy at times. High near 49. West wind around 9 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday Night

Rain. Low around 41. Chance of precipitation is 90%.

Thursday

Rain. High near 47. Chance of precipitation is 80%.

Thursday Night

Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.

Friday

A 40 percent chance of rain. Mostly cloudy, with a high near 50.

Friday Night

A chance of rain. Mostly cloudy, with a low around 39.

Saturday

A chance of rain. Partly sunny, with a high near 50.