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.

Overcast

37°F

3°C

Humidity	86%
Wind Speed	SSE 8 MPH
Barometer	29.79 in (1008.81 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Wind Chill	31°F (-1°C)
Last update	25 Dec 07:35 AM MST

More Information:

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

Extended Forecast for

21 Miles NNW Mackay ID

Winter Weather Advisory December 25, 07:58am until December 25, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 25, 07:58am until December 25, 05:00pm
NOW until 5:00pm Thu
Winter Weather Advisory
Christmas Day
High: 25 °F
Chance Snow
Tonight
Low: 16 °F
Heavy Snow
and Breezy
Friday
High: 19 °F⇓
Snow and
Windy then
Snow Likely
and Breezy
Friday Night
Low: 7 °F
Chance Snow
and Breezy
Saturday
High: 9 °F
Snow Likely
and Breezy
Saturday Night
Low: -7 °F
Partly Cloudy
Sunday
High: 6 °F
Cold
Sunday Night
Low: -1 °F
Mostly Clear

Detailed Forecast

Christmas Day

A chance of snow before noon, then a chance of snow after 2pm. Mostly cloudy, with a high near 25. South southwest wind 16 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. Total daytime snow accumulation of 1 to 2 inches possible.

Tonight

Snow likely, mainly after 3am. The snow could be heavy at times. Mostly cloudy, with a low around 16. Wind chill values as low as -1. Breezy, with a south southwest wind 21 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

Friday

Snow. Temperature falling to around 12 by 5pm. Wind chill values as low as -6. Windy, with a southwest wind 23 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Friday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 7. Wind chill values as low as -12. Breezy, with a west southwest wind 18 to 25 mph, with gusts as high as 33 mph. New snow accumulation of less than one inch possible.

Saturday

Snow likely, mainly before 11am. Mostly cloudy and cold, with a high near 9. Breezy, with a west wind 20 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday Night

Partly cloudy, with a low around -7.

Sunday

Mostly sunny and cold, with a high near 6.

Sunday Night

Mostly clear, with a low around -1.

Monday

Sunny, with a high near 15.

Monday Night

Mostly cloudy, with a low around 9.

Tuesday

Partly sunny, with a high near 22.