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	SE 1 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	09 Dec 06:06 PM PST

More Information:

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

Extended Forecast for

11 Miles SSW Twisp WA

Tonight
Low: 33 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 45 °F
Heavy Rain
Wednesday Night
Low: 37 °F
Rain and
Breezy
Thursday
High: 41 °F
Rain Likely
Thursday Night
Low: 34 °F
Chance
Rain/Snow
Friday
High: 41 °F
Chance
Rain/Snow
Friday Night
Low: 33 °F
Chance Rain
Saturday
High: 36 °F
Slight Chance
Rain/Snow
Saturday Night
Low: 32 °F
Chance Rain

Detailed Forecast

Tonight

Rain, possibly mixed with snow, becoming all rain after midnight. The rain could be heavy at times. Temperature falling to near 33 by 9pm, then rising to around 38 during the remainder of the night. Light and variable wind. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 45. West wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between 2 and 3 inches possible.

Wednesday Night

Rain. Low around 37. Breezy, with a west wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.

Thursday

Rain likely, mainly before 10am. Partly sunny, with a high near 41. West wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

A chance of rain and snow. Mostly cloudy, with a low around 34. Light west wind. Chance of precipitation is 40%. Little or no snow accumulation expected.

Friday

A chance of rain and snow before 1pm, then a chance of rain. Partly sunny, with a high near 41. Chance of precipitation is 30%. Little or no snow accumulation expected.

Friday Night

A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 33.

Saturday

A slight chance of rain and snow after 10am. Partly sunny, with a high near 36. Chance of precipitation is 20%.

Saturday Night

A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 32.

Sunday

A 50 percent chance of rain. Partly sunny, with a high near 38.

Sunday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 31.

Monday

Rain. High near 35. Chance of precipitation is 80%.