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

Provo Municipal Airport (KPVU)

Lat: 40.2239°NLon: 111.7253°WElev: 4495.0ft.

Overcast

58°F

14°C

Humidity	49%
Wind Speed	SSE 16 MPH
Barometer	29.93 in (1013.55 mb)
Dewpoint	39°F (4°C)
Visibility	10.00 mi
Last update	24 Dec 09:56 PM MST

More Information:

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

Extended Forecast for

5 Miles ENE Mapleton 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: 38 °F
Showers
Christmas Day
High: 42 °F
Rain/Snow
then
Rain/Snow
Likely
Thursday Night
Low: 33 °F
Chance Snow
Friday
High: 35 °F
Snow
Friday Night
Low: 27 °F
Snow
Saturday
High: 29 °F
Snow
Saturday Night
Low: 16 °F
Chance Snow
Sunday
High: 23 °F
Mostly Sunny
Sunday Night
Low: 14 °F
Mostly Clear

Detailed Forecast

Tonight

Rain, mainly before 5am, then showers and possibly a thunderstorm after 5am. Low around 38. South wind 16 to 21 mph. Chance of precipitation is 90%.

Christmas Day

Rain showers before 8am, then rain and snow showers likely. Some thunder is also possible. High near 42. South wind 13 to 16 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

A 30 percent chance of snow. Mostly cloudy, with a low around 33. South wind 13 to 15 mph. New snow accumulation of less than a half inch possible.

Friday

Snow, mainly after 11am. High near 35. Southwest wind 13 to 15 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

Friday Night

Snow. Low around 27. West southwest wind 11 to 17 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Saturday

Snow. High near 29. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

A 30 percent chance of snow, mainly before 11pm. Partly cloudy, with a low around 16. New snow accumulation of less than a half inch possible.

Sunday

Mostly sunny, with a high near 23.