Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from December 26, 12:00 PM MST until December 27, 05:00 PM MST

Current conditions at

LIBBY (LBBM8)

Lat: 48.40361°NLon: 115.53917°WElev: 2070.0ft.

37°F

3°C

Humidity	100%
Wind Speed	W 1 MPH
Barometer	NA
Dewpoint	37°F (3°C)
Visibility	NA
Last update	25 Dec 10:25 PM MST

More Information:

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

Extended Forecast for

15 Miles NNW Happys Inn MT

Winter Weather Advisory December 26, 12:00pm until December 27, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Tonight
Low: 29 °F
Slight Chance
Snow
Friday
High: 32 °F
Heavy Snow
Friday Night
Low: 20 °F
Snow and
Patchy
Blowing Snow
Saturday
High: 21 °F
Chance Snow
and Patchy
Blowing Snow
Saturday Night
Low: 8 °F
Mostly Cloudy
Sunday
High: 19 °F
Partly Sunny
Sunday Night
Low: 14 °F
Mostly Cloudy
Monday
High: 23 °F
Mostly Cloudy
Monday Night
Low: 18 °F
Mostly Cloudy

Detailed Forecast

Tonight

A slight chance of snow between 11pm and 1am. Mostly cloudy, with a low around 29. South wind 8 to 10 mph. Chance of precipitation is 20%.

Friday

Snow, mainly before 3pm. The snow could be heavy at times. High near 32. South wind 7 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Friday Night

Snow. Patchy blowing snow. Low around 20. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Saturday

A 40 percent chance of snow, mainly before 11am. Patchy blowing snow before 8am. Partly sunny, with a high near 21. Breezy, with a southwest wind 17 to 22 mph becoming west northwest 9 to 14 mph in the afternoon. Winds could gust as high as 31 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, with a low around 8. Northwest wind 5 to 7 mph becoming west southwest in the evening.

Sunday

Partly sunny, with a high near 19.

Sunday Night

Mostly cloudy, with a low around 14.

Monday

Mostly cloudy, with a high near 23.

Monday Night

Mostly cloudy, with a low around 18.

Tuesday

Mostly cloudy, with a high near 27.