Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. 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.

41°F

5°C

Humidity	94%
Wind Speed	N 1 MPH
Barometer	NA
Dewpoint	39°F (4°C)
Visibility	NA
Last update	11 Dec 04:06 AM PST

More Information:

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

Extended Forecast for

11 Miles SSW 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: 39 °F
Chance Rain
Thursday
High: 43 °F
Chance
Rain/Snow
then Partly
Sunny
Thursday Night
Low: 37 °F
Slight Chance
Rain/Snow
Friday
High: 44 °F
Slight Chance
Rain
Friday Night
Low: 35 °F
Slight Chance
Rain then
Mostly Cloudy
Saturday
High: 43 °F
Partly Sunny
Saturday Night
Low: 34 °F
Slight Chance
Rain
Sunday
High: 42 °F
Chance Rain

Detailed Forecast

Overnight

A 50 percent chance of rain. Mostly cloudy, with a steady temperature around 39. West wind around 9 mph becoming northeast. New precipitation amounts of less than a tenth of an inch possible.

Thursday

A chance of rain and snow before 9am, then a chance of rain between 9am and 10am. Partly sunny, with a high near 43. East wind 5 to 8 mph becoming light and variable in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.

Thursday Night

A slight chance of rain and snow before 1am, then a slight chance of rain. Mostly cloudy, with a steady temperature around 37. Calm wind. Chance of precipitation is 20%.

Friday

A 20 percent chance of rain after 10am. Partly sunny, with a high near 44. Calm wind.

Friday Night

A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 35. Light west wind.

Saturday

Partly sunny, with a high near 43.

Saturday Night

A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 34.

Sunday

A 40 percent chance of rain. Partly sunny, with a high near 42.

Sunday Night

Rain likely, mainly after 4am. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.