Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Hydrologic Outlook

Current conditions at

NCSB (NCSW1)

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

31°F

-1°C

Humidity	100%
Wind Speed	NNE 1 MPH
Barometer	NA
Dewpoint	31°F (-1°C)
Visibility	NA
Last update	07 Dec 10:06 PM PST

More Information:

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

Extended Forecast for

13 Miles SW Twisp WA

Tonight
Low: 22 °F
Snow Likely
and Breezy
Monday
High: 27 °F
Heavy Snow
and Breezy
Monday Night
Low: 19 °F
Heavy Snow
and Very
Windy
Tuesday
High: 23 °F
Chance Snow
and Windy
Tuesday Night
Low: 20 °F
Heavy Snow
Wednesday
High: 25 °F
Heavy Snow
and Breezy
Wednesday Night
Low: 19 °F
Heavy Snow
and Breezy
Thursday
High: 23 °F
Heavy Snow
and Breezy
Thursday Night
Low: 21 °F
Snow Likely

Detailed Forecast

Tonight

Snow likely, mainly between 1am and 4am. Mostly cloudy, with a steady temperature around 22. Breezy, with a west wind around 22 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of around an inch possible.

Monday

Snow, mainly after 7am. The snow could be heavy at times. High near 27. Breezy, with a west wind 15 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

Monday Night

Snow. The snow could be heavy at times. Low around 19. Wind chill values as low as -1. Very windy, with a west wind 30 to 37 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 7 to 11 inches possible.

Tuesday

A 50 percent chance of snow. Partly sunny, with a high near 23. Wind chill values as low as -1. Windy, with a west wind 28 to 33 mph decreasing to 14 to 19 mph in the afternoon. Winds could gust as high as 55 mph. New snow accumulation of 1 to 3 inches possible.

Tuesday Night

Snow. The snow could be heavy at times. Low around 20. West wind 11 to 16 mph. Chance of precipitation is 90%. New snow accumulation of 8 to 12 inches possible.

Wednesday

Snow. The snow could be heavy at times. High near 25. Breezy. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Wednesday Night

Snow likely, mainly before 10pm. The snow could be heavy at times. Mostly cloudy, with a low around 19. Breezy. Chance of precipitation is 60%. New snow accumulation of 6 to 10 inches possible.

Thursday

Snow likely, mainly after 4pm. The snow could be heavy at times. Partly sunny, with a high near 23. Breezy. Chance of precipitation is 60%.

Thursday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.

Friday

A 40 percent chance of snow. Partly sunny, with a high near 26.

Friday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 22.

Saturday

Snow likely. Partly sunny, with a high near 25. Chance of precipitation is 60%.

Saturday Night

Snow likely. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.