Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

NCSB (NCSW1)

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

35°F

2°C

Humidity	94%
Wind Speed	NNE 1 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	09 Dec 05:06 PM PST

More Information:

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

Extended Forecast for

12 Miles SW Twisp WA

This Afternoon
High: 34 °F
Heavy Snow
Tonight
Low: 31 °F⇑
Rain/Snow
Wednesday
High: 42 °F
Heavy Rain
and Windy
Wednesday Night
Low: 34 °F
Heavy Rain
and Breezy
Thursday
High: 37 °F
Rain/Snow
Likely
Thursday Night
Low: 32 °F
Chance Snow
Friday
High: 38 °F
Chance
Rain/Snow
Friday Night
Low: 31 °F
Chance
Rain/Snow
Saturday
High: 34 °F
Slight Chance
Rain/Snow

Detailed Forecast

This Afternoon

Snow. The snow could be heavy at times. High near 34. Calm wind. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 2 inches possible.

Tonight

Snow before 10pm, then rain, possibly mixed with snow. The rain and snow could be heavy at times. Temperature rising to around 38 by 5am. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 42. Windy, with a west wind 21 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between 2 and 3 inches possible.

Wednesday Night

Rain. The rain could be heavy at times. Low around 34. Breezy, with a west wind 19 to 24 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts between 1 and 2 inches possible.

Thursday

Rain and snow likely before 1pm, then a chance of snow. Partly sunny, with a high near 37. West wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Thursday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 32. Little or no snow accumulation expected.

Friday

A chance of snow before 10am, then a chance of rain and snow between 10am and 4pm, then a chance of rain after 4pm. Partly sunny, with a high near 38. Chance of precipitation is 40%. Little or no snow accumulation expected.

Friday Night

A chance of rain, mixing with snow after 7pm, then gradually ending. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

Saturday

A slight chance of rain and snow after 10am. Partly sunny, with a high near 34. Chance of precipitation is 20%.

Saturday Night

A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

Sunday

A chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 50%.

Sunday Night

A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

Monday

Rain and snow. High near 32. Chance of precipitation is 80%.