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 >

Hazardous Weather Conditions

Current conditions at

RONAN (RONM8)

Lat: 47.53639°NLon: 114.09889°WElev: 3068.0ft.

36°F

2°C

Humidity	79%
Wind Speed	SSE 2 MPH
Barometer	NA
Dewpoint	30°F (-1°C)
Visibility	NA
Last update	09 Dec 10:31 PM MST

More Information:

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

Extended Forecast for

9 Miles E St. Ignatius MT

Flood Watch until December 11, 05:00pm

Winter Weather Advisory December 10, 12:00am until December 10, 11:00am

Click here for hazard details and duration

Flood Watch

Winter Weather Advisory

Flood Watch until December 11, 05:00pm
NOW until 5:00pm Thu
Flood Watch
Tonight
Low: 19 °F⇑
Heavy Snow
Wednesday
High: 32 °F
Breezy. Heavy
Snow then
Rain/Snow
Wednesday Night
Low: 28 °F
Heavy Snow
and Breezy
Thursday
High: 30 °F
Heavy Snow
and Breezy
Thursday Night
Low: 27 °F
Heavy Snow
Friday
High: 28 °F
Heavy Snow
Friday Night
Low: 23 °F
Heavy Snow
and Breezy
Saturday
High: 25 °F
Chance Snow

Detailed Forecast

Tonight

Snow, mainly after midnight. The snow could be heavy at times. Temperature rising to around 27 by 5am. Southwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 9 to 13 inches possible.

Wednesday

Snow before 2pm, then rain and snow. The snow could be heavy at times. High near 32. Breezy, with a west southwest wind around 23 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Wednesday Night

Snow. The snow could be heavy at times. Low around 28. Breezy, with a west southwest wind 25 to 29 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Thursday

Snow. The snow could be heavy at times. High near 30. Breezy, with a west wind 23 to 26 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 27. West northwest wind 15 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

Friday

Snow. The snow could be heavy at times. High near 28. Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.

Friday Night

Snow likely, mainly before 11pm. The snow could be heavy at times. Cloudy, with a low around 23. Breezy. Chance of precipitation is 60%. New snow accumulation of 5 to 9 inches possible.

Saturday

A chance of snow. Mostly cloudy, with a high near 25.

Saturday Night

A chance of snow, mainly after 11pm. Mostly cloudy, with a low around 23.

Sunday

A chance of snow. Partly sunny, with a high near 26.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 23.

Monday

A chance of snow. Mostly cloudy, with a high near 27.

Monday Night

Snow. Cloudy, with a low around 24. Breezy.