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 until December 11, 11:45 AM PST

Current conditions at

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

41°F

5°C

Humidity	94%
Wind Speed	N 3 MPH
Barometer	NA
Dewpoint	39°F (4°C)
Visibility	NA
Last update	11 Dec 09:01 AM PST

More Information:

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

Extended Forecast for

6 Miles WNW Mazama WA

Flood Advisory December 11, 09:19am until December 11, 11:45am

Click here for hazard details and duration

Flood Advisory

Flood Advisory December 11, 09:19am until December 11, 11:45am
NOW until 11:45am Thu
Flood Advisory
Today
High: 39 °F
Snow Likely
then Chance
Snow
Tonight
Low: 32 °F⇑
Chance
Rain/Snow
Friday
High: 42 °F
Rain/Snow
Likely
Friday Night
Low: 36 °F
Chance Rain
Saturday
High: 43 °F
Slight Chance
Rain
Saturday Night
Low: 34 °F
Chance Rain
Sunday
High: 41 °F
Rain Likely
Sunday Night
Low: 35 °F
Rain

Detailed Forecast

Today

Snow likely, mainly before 10am. Partly sunny, with a high near 39. West wind 6 to 10 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

Tonight

A chance of snow before 10pm, then a chance of rain and snow. Mostly cloudy, with a temperature falling to near 32 by 9pm, then rising to around 36 during the remainder of the night. Northwest wind 3 to 5 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Friday

Rain likely, possibly mixed with snow, becoming all rain after 1pm. Mostly cloudy, with a high near 42. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday Night

A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 36. West wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A slight chance of rain before 10am, then a slight chance of rain after 4pm. Partly sunny, with a high near 43. Light south wind. Chance of precipitation is 20%.

Saturday Night

A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 34.

Sunday

Rain likely. Mostly cloudy, with a high near 41. Chance of precipitation is 70%.

Sunday Night

Rain. Low around 35. Chance of precipitation is 80%.

Monday

Rain. High near 40. Chance of precipitation is 100%.

Monday Night

Rain before 10pm, then rain, possibly mixed with snow. Low around 30. Chance of precipitation is 90%.

Tuesday

Snow. High near 36. Chance of precipitation is 90%.