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.

Fog

32°F

0°C

Humidity	95%
Wind Speed	N 3 MPH
Barometer	29.73 in (1006.77 mb)
Dewpoint	31°F (-1°C)
Visibility	0.25 mi
Last update	25 Dec 03:56 AM MST

More Information:

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

Extended Forecast for

14 Miles SW Salmon 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
Overnight
Low: 25 °F
Chance Snow
Christmas Day
High: 29 °F
Chance Snow
and Patchy
Blowing Snow
Thursday Night
Low: 21 °F
Chance Snow
and Patchy
Blowing Snow
Friday
High: 23 °F
Snow and
Blowing Snow
Friday Night
Low: 13 °F
Chance Snow
and Blowing
Snow
Saturday
High: 14 °F
Snow Likely
and Blowing
Snow
Saturday Night
Low: -2 °F
Partly Cloudy
Sunday
High: 13 °F
Mostly Sunny

Detailed Forecast

Overnight

A 30 percent chance of snow, mainly before 5am. Mostly cloudy, with a low around 25. Southwest wind around 16 mph, with gusts as high as 23 mph. Total nighttime snow accumulation of 1 to 3 inches possible.

Christmas Day

A 30 percent chance of snow, mainly before 8am. Patchy blowing snow after 2pm. Mostly sunny, with a high near 29. South southwest wind 14 to 18 mph, with gusts as high as 29 mph. New snow accumulation of less than a half inch possible.

Thursday Night

A 50 percent chance of snow after 4am. Patchy blowing snow. Mostly cloudy, with a low around 21. South southwest wind around 21 mph, with gusts as high as 30 mph. New snow accumulation of 1 to 3 inches possible.

Friday

Snow, mainly before 11am. Widespread blowing snow, mainly between 8am and 11am. High near 23. Wind chill values as low as -1. Windy, with a southwest wind 22 to 27 mph increasing to 28 to 33 mph in the morning. Winds could gust as high as 55 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday Night

A 50 percent chance of snow. Widespread blowing snow, mainly after 11pm. Mostly cloudy, with a low around 13. Windy, with a west southwest wind 29 to 36 mph, with gusts as high as 50 mph. New snow accumulation of 1 to 2 inches possible.

Saturday

Snow likely, mainly before 11am. Widespread blowing snow, mainly before 11am. Partly sunny, with a high near 14. Windy. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Saturday Night

Partly cloudy, with a low around -2.

Sunday

Mostly sunny, with a high near 13.

Sunday Night

Mostly clear, with a low around 4.

Monday

Mostly sunny, with a high near 20.

Monday Night

Mostly cloudy, with a low around 13.

Tuesday

Partly sunny, with a high near 26.