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 24, 05:57 PM MST until December 25, 05:00 AM MST

Current conditions at

Salmon, Lemhi County Airport (KSMN)

Lat: 45.11667°NLon: 113.88333°WElev: 4045.0ft.

unknown precip,mist

32°F

0°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	29.74 in (1007.11 mb)
Dewpoint	30°F (-1°C)
Visibility	3.00 mi
Last update	24 Dec 10:05 PM MST

More Information:

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

Extended Forecast for

22 Miles NW Challis ID

Winter Weather Advisory until December 25, 05:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory until December 25, 05:00am
NOW until 5:00am Thu
Winter Weather Advisory
Tonight
Low: 27 °F
Snow
Christmas Day
High: 35 °F
Chance Snow
Thursday Night
Low: 25 °F
Snow
Friday
High: 29 °F
Snow
Friday Night
Low: 15 °F
Snow Likely
Saturday
High: 20 °F
Snow Likely
then Chance
Snow
Saturday Night
Low: 1 °F
Mostly Cloudy
Sunday
High: 23 °F
Sunny

Detailed Forecast

Tonight

Snow, mainly before 3am. Low around 27. South southwest wind around 6 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of around an inch possible.

Christmas Day

A chance of snow before 7am, then a chance of snow after 2pm. Increasing clouds, with a high near 35. South wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Thursday Night

Snow. Low around 25. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Friday

Snow. High near 29. South southwest wind 10 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Friday Night

Snow likely. Mostly cloudy, with a low around 15. West southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Saturday

Snow likely, mainly before 11am. Mostly cloudy, with a high near 20. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, with a low around 1.

Sunday

Sunny, with a high near 23.

Sunday Night

Mostly clear, with a low around 9.

Monday

Mostly sunny, with a high near 31.

Monday Night

Mostly cloudy, with a low around 18.

Tuesday

Mostly sunny, with a high near 37.