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

32°F

0°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	30.01 in (1016.26 mb)
Dewpoint	32°F (0°C)
Visibility	1.75 mi
Last update	08 Dec 09:12 AM PST

More Information:

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

Extended Forecast for

2 Miles SE 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: 44 °F
Heavy Rain
Tonight
Low: 32 °F
Rain/Snow
Tuesday
High: 39 °F
Rain/Snow
Tuesday Night
Low: 34 °F
Heavy Rain
Wednesday
High: 45 °F
Heavy Rain
Wednesday Night
Low: 39 °F
Heavy Rain
Thursday
High: 43 °F
Rain
Thursday Night
Low: 40 °F
Rain

Detailed Forecast

Today

Rain. The rain could be heavy at times. High near 44. West wind 7 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tonight

Rain before 10pm, then rain, possibly mixed with snow. The rain could be heavy at times. Low around 32. West wind 14 to 17 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Tuesday

Rain and snow. High near 39. West wind 5 to 7 mph becoming calm in the morning. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tuesday Night

Rain. The rain could be heavy at times. Low around 34. South wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 45. West wind around 9 mph, with gusts as high as 24 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 39. Chance of precipitation is 90%.

Thursday

Rain. High near 43. Chance of precipitation is 90%.

Thursday Night

Rain. Low around 40. Chance of precipitation is 80%.

Friday

A 50 percent chance of rain. Mostly cloudy, with a high near 45.

Friday Night

A chance of rain. Mostly cloudy, with a low around 37.

Saturday

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