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, 08:00 AM MST until December 27, 02:00 PM MST

Current conditions at

ST. REGIS (STGM8)

Lat: 47.30711°NLon: 115.10761°WElev: 2678.0ft.

38°F

3°C

Humidity	99%
Wind Speed	NW 1 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Last update	25 Dec 08:02 PM MST

More Information:

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

Extended Forecast for

12 Miles SSW St. Regis MT

Winter Weather Advisory December 26, 08:00am until December 27, 02:00pm

Click here for hazard details and duration

Winter Weather Advisory

Tonight
Low: 26 °F
Chance Snow
and Patchy
Blowing Snow
Friday
High: 29 °F
Heavy Snow
and Blowing
Snow
Friday Night
Low: 13 °F
Heavy Snow
and Blowing
Snow
Saturday
High: 16 °F
Snow and
Blowing Snow
Saturday Night
Low: 5 °F
Partly Cloudy
Sunday
High: 16 °F
Partly Sunny
Sunday Night
Low: 11 °F
Mostly Cloudy
Monday
High: 23 °F
Partly Sunny
Monday Night
Low: 18 °F
Mostly Cloudy

Detailed Forecast

Tonight

A chance of snow before 1am, then a chance of snow after 4am. Patchy blowing snow before 2am. Mostly cloudy, with a low around 26. Southwest wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of 2 to 4 inches possible.

Friday

Snow. The snow could be heavy at times. Widespread blowing snow after 9am. High near 29. Breezy, with a south wind 14 to 19 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of 7 to 11 inches possible.

Friday Night

Snow. The snow could be heavy at times. Widespread blowing snow. Low around 13. Wind chill values as low as -6. Windy, with a southwest wind 34 to 44 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Saturday

Snow, mainly before 11am. Widespread blowing snow, mainly before 11am. High near 16. Wind chill values as low as -9. Windy, with a west wind 28 to 38 mph decreasing to 18 to 28 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

Partly cloudy, with a low around 5. Southwest wind 10 to 14 mph, with gusts as high as 20 mph.

Sunday

Partly sunny, with a high near 16.

Sunday Night

Mostly cloudy, with a low around 11.

Monday

Partly sunny, with a high near 23.

Monday Night

Mostly cloudy, with a low around 18.

Tuesday

Mostly cloudy, with a high near 27.