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

Current conditions at

ROOSEVELT (K74V)

Lat: 40.28°NLon: 110.05°WElev: 5171.0ft.

Overcast

48°F

9°C

Humidity	70%
Wind Speed	NE 6 MPH
Barometer	30.07 in (1018.29 mb)
Dewpoint	39°F (4°C)
Visibility	10.00 mi
Wind Chill	45°F (7°C)
Last update	24 Dec 11:35 PM MST

More Information:

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

Extended Forecast for

10 Miles NNE Altonah UT

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

Winter Weather Advisory December 24, 11:57pm until December 25, 11:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 24, 11:57pm until December 25, 11:00pm
NOW until 11:00pm Thu
Winter Weather Advisory
Tonight
Low: 39 °F
Rain
Christmas Day
High: 46 °F
Rain/Snow
Thursday Night
Low: 30 °F
Chance
Rain/Snow
then Mostly
Cloudy
Friday
High: 40 °F
Snow Likely
Friday Night
Low: 25 °F
Snow
Saturday
High: 38 °F
Chance Snow
Saturday Night
Low: 11 °F
Slight Chance
Snow then
Mostly Clear
Sunday
High: 31 °F
Sunny

Detailed Forecast

Tonight

Rain. Steady temperature around 39. South southeast wind 3 to 5 mph. Chance of precipitation is 90%.

Christmas Day

Rain, possibly mixed with snow. Some thunder is also possible. High near 46. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Thursday Night

A chance of rain and snow before 8pm, then a chance of snow between 8pm and 11pm. Mostly cloudy, with a low around 30. West wind 3 to 7 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

Friday

Snow likely, mainly after 11am. Cloudy, with a high near 40. Light west southwest wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Friday Night

Snow. Low around 25. West southwest wind 5 to 10 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Saturday

A 50 percent chance of snow. Partly sunny, with a high near 38. New snow accumulation of less than a half inch possible.

Saturday Night

A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 11.

Sunday

Sunny, with a high near 31.

Sunday Night

Mostly clear, with a low around 13.

Monday

Sunny, with a high near 36.