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

52°F

11°C

Humidity	71%
Wind Speed	SE 8 MPH
Barometer	29.94 in (1013.89 mb)
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Last update	25 Dec 05:20 AM MST

More Information:

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

Extended Forecast for

3 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

Overnight
Low: 45 °F
Showers
Christmas Day
High: 52 °F
Showers then
Chance Rain
Thursday Night
Low: 40 °F
Slight Chance
Rain
Friday
High: 44 °F
Rain
Friday Night
Low: 34 °F
Rain/Snow
Saturday
High: 35 °F
Snow
Saturday Night
Low: 21 °F
Chance Snow
Sunday
High: 27 °F
Mostly Sunny
Sunday Night
Low: 18 °F
Mostly Clear

Detailed Forecast

Overnight

Showers and possibly a thunderstorm. Low around 45. Southwest wind around 13 mph. Chance of precipitation is 80%.

Christmas Day

Showers and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 11am, then a chance of rain after 11am. High near 52. West southwest wind 11 to 13 mph. Chance of precipitation is 80%.

Thursday Night

A slight chance of rain before 11pm, then a slight chance of rain after 2am. Increasing clouds, with a low around 40. South wind around 11 mph. Chance of precipitation is 20%.

Friday

Rain, mainly after 11am. High near 44. South southwest wind 10 to 13 mph. Chance of precipitation is 90%.

Friday Night

Rain showers before 11pm, then rain and snow showers between 11pm and 2am, then snow showers after 2am. Some thunder is also possible. Low around 34. Southwest wind around 11 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Saturday

Snow. High near 35. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Saturday Night

A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 21. New snow accumulation of less than a half inch possible.

Sunday

Mostly sunny, with a high near 27.

Sunday Night

Mostly clear, with a low around 18.

Monday

Sunny, with a high near 32.

Monday Night

Mostly clear, with a low around 23.