Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Hazardous Weather Conditions

Flood Advisory in effect from December 10, 11:49 PM PST until December 11, 11:45 AM PST

Current conditions at

NCSB (NCSW1)

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

44°F

7°C

Humidity	93%
Wind Speed	NNW 7 MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Wind Chill	40°F (4°C)
Last update	11 Dec 12:06 AM PST

More Information:

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

Extended Forecast for

4 Miles SW Twisp WA

Flood Advisory until December 11, 11:45am

Click here for hazard details and duration

Flood Advisory

Flood Advisory until December 11, 11:45am
NOW until 11:45am Thu
Flood Advisory
Overnight
Low: 34 °F
Rain/Snow
Likely and
Breezy
Thursday
High: 38 °F
Chance Snow
then Mostly
Sunny
Thursday Night
Low: 33 °F
Chance Snow
Friday
High: 39 °F
Slight Chance
Rain/Snow
Friday Night
Low: 34 °F
Slight Chance
Rain
Saturday
High: 39 °F
Partly Sunny
then Slight
Chance Rain
Saturday Night
Low: 33 °F
Chance Rain
Sunday
High: 38 °F
Chance Rain

Detailed Forecast

Overnight

Rain likely before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 34. Breezy, with a northwest wind 16 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Thursday

A chance of snow before 10am, then a slight chance of snow after 4pm. Mostly sunny, with a high near 38. Northwest wind 6 to 9 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Thursday Night

A 30 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 33. Northwest wind 3 to 7 mph. Little or no snow accumulation expected.

Friday

A slight chance of snow before 10am, then a slight chance of rain and snow. Partly sunny, with a high near 39. Light west wind. Chance of precipitation is 20%.

Friday Night

A 20 percent chance of rain. Mostly cloudy, with a low around 34. West wind 3 to 6 mph.

Saturday

A 10 percent chance of rain after 4pm. Partly sunny, with a high near 39.

Saturday Night

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

Sunday

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

Sunday Night

A chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.

Monday

Rain, possibly mixed with snow, mainly after 10am. High near 36. Chance of precipitation is 80%.