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, 05:00 AM MST until December 27, 08:00 PM MST

Current conditions at

Ravalli County Airport (KHRF)

Lat: 46.25463°NLon: 114.1246°WElev: 3644.0ft.

Overcast

39°F

4°C

Humidity	93%
Wind Speed	W 3 MPH
Barometer	29.74 in (1007.11 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	25 Dec 10:35 PM MST

More Information:

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

Extended Forecast for

14 Miles ENE Darby MT

Winter Weather Advisory December 26, 05:00am until December 27, 08:00pm

Click here for hazard details and duration

Winter Weather Advisory

Tonight
Low: 25 °F
Snow Likely
Friday
High: 28 °F
Snow and
Patchy
Blowing Snow
Friday Night
Low: 13 °F
Snow and
Patchy
Blowing Snow
Saturday
High: 15 °F
Snow and
Patchy
Blowing Snow
Saturday Night
Low: 1 °F
Partly Cloudy
Sunday
High: 14 °F
Mostly Sunny
Sunday Night
Low: 8 °F
Mostly Clear
Monday
High: 24 °F
Mostly Sunny
Monday Night
Low: 17 °F
Mostly Cloudy

Detailed Forecast

Tonight

Snow likely, mainly after 5am. Mostly cloudy, with a low around 25. South wind 11 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 2 inches possible.

Friday

Snow, mainly before noon. Patchy blowing snow before 3pm, then patchy blowing snow after 5pm. High near 28. Breezy, with a southwest wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Friday Night

Snow, mainly after 11pm. Patchy blowing snow. Low around 13. Wind chill values as low as -5. Breezy, with a west southwest wind 20 to 24 mph, with gusts as high as 48 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Saturday

Snow. Patchy blowing snow before 11am. High near 15. Wind chill values as low as -5. Breezy, with a west wind 17 to 22 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

Partly cloudy, with a low around 1. West wind 5 to 8 mph becoming south southwest after midnight.

Sunday

Mostly sunny, with a high near 14.

Sunday Night

Mostly clear, with a low around 8.

Monday

Mostly sunny, with a high near 24.

Monday Night

Mostly cloudy, with a low around 17.

Tuesday

Mostly cloudy, with a high near 29.