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

Wind Advisory until December 11, 07:00 PM MST

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

unknown precip

45°F

7°C

Humidity	89%
Wind Speed	W 1 MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Last update	11 Dec 11:30 AM MST

More Information:

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

Extended Forecast for

12 Miles W Marysville MT

Wind Advisory December 11, 11:55am until December 11, 07:00pm

Click here for hazard details and duration

Wind Advisory

Wind Advisory December 11, 11:55am until December 11, 07:00pm
NOW until 7:00pm Thu
Wind Advisory
Today
High: 31 °F
Heavy Snow
and Windy
Tonight
Low: 25 °F
Heavy Snow
and Breezy
Friday
High: 32 °F
Snow
Friday Night
Low: 28 °F
Chance Snow
and Windy
Saturday
High: 32 °F
Chance Snow
and Breezy
then Partly
Sunny
Saturday Night
Low: 28 °F
Partly Cloudy
Sunday
High: 34 °F
Mostly Sunny
and Breezy
then Mostly
Sunny
Sunday Night
Low: 29 °F
Mostly Cloudy
and Breezy

Detailed Forecast

Today

Snow. The snow could be heavy at times. High near 31. Windy, with a west wind around 30 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 5 inches possible.

Tonight

Snow. The snow could be heavy at times. Low around 25. Breezy, with a west wind 17 to 25 mph, with gusts as high as 49 mph. Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.

Friday

Snow. High near 32. West wind 16 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Friday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 28. Windy, with a west wind 25 to 33 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.

Saturday

A 30 percent chance of snow before 11am. Partly sunny, with a high near 32. Breezy, with a west southwest wind 13 to 22 mph, with gusts as high as 26 mph. Little or no snow accumulation expected.

Saturday Night

Partly cloudy, with a low around 28.

Sunday

Mostly sunny, with a high near 34. Breezy.

Sunday Night

Mostly cloudy, with a low around 29. Breezy.

Monday

A slight chance of snow after 11am. Partly sunny, with a high near 35. Breezy.

Monday Night

A chance of snow. Mostly cloudy, with a low around 27. Windy.

Tuesday

Snow likely. Mostly cloudy, with a high near 31. Windy.