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, 11:00 AM MST until December 28, 05:00 AM MST

Current conditions at

South Valley Regional Airport (KSVR)

Lat: 40.6196°NLon: 111.99016°WElev: 4596.0ft.

Clear

48°F

9°C

Humidity	46%
Wind Speed	S 20 MPH
Barometer	30.0 in (1015.92 mb)
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Wind Chill	41°F (5°C)
Last update	25 Dec 10:35 PM MST

More Information:

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

Extended Forecast for

4 Miles NNE Alpine UT

Winter Weather Advisory December 26, 11:00am until December 28, 05:00am

Click here for hazard details and duration

Winter Weather Advisory

Tonight
Low: 34 °F
Slight Chance
Snow
Friday
High: 35 °F
Snow
Friday Night
Low: 27 °F
Snow Showers
Saturday
High: 28 °F
Snow
Saturday Night
Low: 12 °F
Snow Likely
then Chance
Snow
Sunday
High: 18 °F
Slight Chance
Snow then
Sunny
Sunday Night
Low: 10 °F
Mostly Clear
Monday
High: 23 °F
Sunny
Monday Night
Low: 17 °F
Mostly Clear

Detailed Forecast

Tonight

A slight chance of snow before 11pm, then a slight chance of snow after 2am. Increasing clouds, with a low around 34. South wind around 21 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

Friday

Snow, mainly after 11am. High near 35. South wind 14 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Friday Night

Snow showers, mainly before 2am, then snow after 2am. Some thunder is also possible. Low around 27. Southwest wind 7 to 15 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Saturday

Snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 28. West wind 3 to 5 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Saturday Night

Snow likely, mainly before 11pm. Mostly cloudy, with a low around 12. Northwest wind 6 to 11 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

Sunday

A 20 percent chance of snow before 11am. Mostly sunny, with a high near 18.

Sunday Night

Mostly clear, with a low around 10.

Monday

Sunny, with a high near 23.

Monday Night

Mostly clear, with a low around 17.

Tuesday

Mostly sunny, with a high near 30.

Tuesday Night

Mostly clear, with a low around 23.