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.

32°F

0°C

Humidity	100%
Wind Speed	NW 1 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Last update	07 Dec 08:06 PM PST

More Information:

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

Extended Forecast for

11 Miles WSW Twisp WA

Tonight
Low: 31 °F
Snow Likely
Monday
High: 37 °F
Rain/Snow
Monday Night
Low: 31 °F
Rain/Snow
Tuesday
High: 34 °F
Chance Snow
Tuesday Night
Low: 30 °F
Snow then
Rain/Snow
Wednesday
High: 36 °F
Rain/Snow
Wednesday Night
Low: 29 °F
Rain/Snow
Likely then
Chance Snow
Thursday
High: 34 °F
Snow Likely
Thursday Night
Low: 31 °F
Rain/Snow
Likely

Detailed Forecast

Tonight

Snow likely, mainly between 1am and 4am. Mostly cloudy, with a low around 31. Northwest wind around 7 mph becoming southwest after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

Monday

Rain, possibly mixed with snow, becoming all rain after 1pm. The rain could be heavy at times. High near 37. Light and variable wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Monday Night

Rain and snow, becoming all snow after 1am. The rain could be heavy at times. Low around 31. West wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Tuesday

A 50 percent chance of snow. Partly sunny, with a high near 34. West wind 6 to 11 mph. New snow accumulation of less than one inch possible.

Tuesday Night

Snow before 1am, then snow, possibly mixed with rain. Low around 30. West wind 3 to 5 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Wednesday

Rain and snow. High near 36. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Wednesday Night

Snow likely, possibly mixed with rain, becoming all snow after 7pm. Mostly cloudy, with a low around 29. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

Thursday

Snow likely, mainly after 4pm. Partly sunny, with a high near 34. Chance of precipitation is 60%.

Thursday Night

Snow likely, possibly mixed with rain, mainly before 10pm. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

Friday

A chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 40%.

Friday Night

A chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.

Saturday

Rain and snow likely. Partly sunny, with a high near 36. Chance of precipitation is 60%.

Saturday Night

Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.