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 until December 25, 05:00 PM MST

Current conditions at

Challis - Challis Airport (KLLJ)

Lat: 44.523°NLon: 114.21611°WElev: 5026.0ft.

Rain

36°F

2°C

Humidity	96%
Wind Speed	SE 3 MPH
Barometer	29.73 in (1006.77 mb)
Dewpoint	35°F (2°C)
Visibility	10.00 mi
Last update	24 Dec 07:55 PM MST

More Information:

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

Extended Forecast for

13 Miles NNW Mackay ID

Winter Weather Advisory December 24, 08:13pm until December 25, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 24, 08:13pm until December 25, 05:00pm
NOW until 5:00pm Thu
Winter Weather Advisory
Tonight
Low: 21 °F
Heavy Snow
Christmas Day
High: 23 °F
Chance Snow
Thursday Night
Low: 18 °F
Heavy Snow
and Breezy
Friday
High: 20 °F
Breezy. Heavy
Snow then
Snow Likely
Friday Night
Low: 6 °F
Snow Likely
and Breezy
Saturday
High: 8 °F
Chance Snow
Saturday Night
Low: -5 °F
Partly Cloudy
Sunday
High: 8 °F
Cold

Detailed Forecast

Tonight

Snow. The snow could be heavy at times. Low around 21. South southwest wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 7 to 11 inches possible.

Christmas Day

A chance of snow before 8am, then a chance of snow after 3pm. Increasing clouds, with a high near 23. South southwest wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 18. Breezy, with a southwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Friday

Snow. The snow could be heavy at times. High near 20. Breezy, with a west southwest wind 20 to 25 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Friday Night

Snow likely. Cloudy, with a low around 6. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of 3 to 5 inches possible.

Saturday

A 50 percent chance of snow. Mostly cloudy and cold, with a high near 8. New snow accumulation of less than one inch possible.

Saturday Night

Partly cloudy, with a low around -5.

Sunday

Mostly sunny and cold, with a high near 8.

Sunday Night

Mostly clear, with a low around 2.

Monday

Sunny, with a high near 16.

Monday Night

Mostly cloudy, with a low around 9.