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

Hydrologic Outlook

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

35°F

2°C

Humidity	100%
Wind Speed	NNW 2 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Last update	08 Dec 11:06 AM PST

More Information:

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

Extended Forecast for

17 Miles SW Twisp WA

Today
High: 30 °F
Heavy Snow
and Breezy
Tonight
Low: 20 °F
Heavy Snow
and Windy
Tuesday
High: 23 °F
Snow Likely
and Windy
Tuesday Night
Low: 21 °F
Heavy Snow
Wednesday
High: 27 °F
Heavy Snow
and Breezy
Wednesday Night
Low: 23 °F
Heavy Snow
Thursday
High: 27 °F
Snow Likely
Thursday Night
Low: 25 °F
Snow Likely
Friday
High: 28 °F
Chance Snow

Detailed Forecast

Today

Snow. The snow could be heavy at times. High near 30. Breezy, with a west wind 14 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 6 to 10 inches possible.

Tonight

Snow, mainly before 1am. The snow could be heavy at times. Low around 20. Windy, with a west wind 25 to 29 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. New snow accumulation of 8 to 12 inches possible.

Tuesday

Snow likely, mainly after 10am. Increasing clouds, with a high near 23. Windy, with a west wind 21 to 26 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

Tuesday Night

Snow. The snow could be heavy at times. Low around 21. West wind 9 to 13 mph. Chance of precipitation is 100%. New snow accumulation of 13 to 19 inches possible.

Wednesday

Snow. The snow could be heavy at times. High near 27. Breezy, with a west wind 16 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 7 to 11 inches possible.

Wednesday Night

Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 23. Chance of precipitation is 70%. New snow accumulation of 5 to 9 inches possible.

Thursday

Snow likely. Mostly cloudy, with a high near 27. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

Thursday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 25. Chance of precipitation is 60%.

Friday

A 30 percent chance of snow. Partly sunny, with a high near 28.

Friday Night

A 30 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 24.

Saturday

A 40 percent chance of snow. Partly sunny, with a high near 27.

Saturday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 23.