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,fog

42°F

6°C

Humidity	100%
Wind Speed	N 3 MPH
Barometer	29.88 in (1011.85 mb)
Dewpoint	42°F (6°C)
Visibility	0.25 mi
Last update	08 Dec 12:56 PM PST

More Information:

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

Extended Forecast for

13 Miles SE Skykomish 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: 35 °F
Heavy Snow
and Breezy
Tonight
Low: 24 °F
Heavy Snow
and Windy
Tuesday
High: 32 °F
Heavy Snow
Tuesday Night
Low: 26 °F
Rain/Snow and
Breezy
Wednesday
High: 34 °F
Heavy Snow
and Breezy
Wednesday Night
Low: 29 °F
Heavy Snow
Thursday
High: 31 °F
Heavy Snow
Thursday Night
Low: 30 °F
Snow Likely

Detailed Forecast

This Afternoon

Snow. The snow could be heavy at times. High near 35. Breezy, with a west wind around 25 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 5 to 9 inches possible.

Tonight

Snow. The snow could be heavy at times. Low around 24. Windy, with a west wind 28 to 32 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

Tuesday

Snow likely before 10am, then snow after 1pm. The snow could be heavy at times. High near 32. West wind 15 to 20 mph becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Tuesday Night

Snow before 10pm, then rain and snow. The rain and snow could be heavy at times. Low around 26. Breezy, with a west wind 10 to 15 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Wednesday

Snow. The snow could be heavy at times. High near 34. Breezy, with a west wind 18 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Wednesday Night

Snow. The snow could be heavy at times. Low around 29. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Thursday

Snow. The snow could be heavy at times. High near 31. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Thursday Night

Snow likely. Mostly cloudy, with a low around 30. Chance of precipitation is 70%.

Friday

A 50 percent chance of snow. Mostly cloudy, with a high near 33.

Friday Night

A chance of snow. Mostly cloudy, with a low around 29.

Saturday

Snow likely. Partly sunny, with a high near 33.