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 Storm Warning until December 26, 10:00 AM PST

Current conditions at

Mount Shasta (KMHS)

Lat: 41.31494°NLon: 122.31702°WElev: 3540.0ft.

Mostly Cloudy

44°F

7°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	29.52 in (999.66 mb)
Dewpoint	42°F (6°C)
Visibility	10.00 mi
Last update	24 Dec 08:56 AM PST

More Information:

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

Extended Forecast for

14 Miles ENE Weed CA

Winter Storm Warning December 24, 09:48am until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 24, 09:48am until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Today
High: 31 °F
Heavy Snow
and Windy
Tonight
Low: 28 °F
Heavy Snow
and Windy
Christmas Day
High: 30 °F⇓
Heavy Snow
and Windy
Thursday Night
Low: 25 °F
Heavy Snow
and Windy
Friday
High: 28 °F
Heavy Snow
and Breezy
Friday Night
Low: 23 °F
Snow Likely
then Chance
Snow
Saturday
High: 24 °F
Mostly Sunny
Saturday Night
Low: 19 °F
Partly Cloudy

Detailed Forecast

Today

Snow likely, mainly before 2pm. The snow could be heavy at times. Partly sunny, with a steady temperature around 31. Windy, with a south wind 45 to 55 mph decreasing to 18 to 28 mph in the morning. Winds could gust as high as 85 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 5 to 9 inches possible.

Tonight

Snow, mainly after 9pm. The snow could be heavy at times. Steady temperature around 28. Windy, with a south southeast wind 38 to 45 mph, with gusts as high as 70 mph. Chance of precipitation is 90%. New snow accumulation of 13 to 19 inches possible.

Christmas Day

Snow. The snow could be heavy at times. Temperature falling to around 25 by 4pm. Windy, with a south wind 45 to 55 mph decreasing to 34 to 44 mph in the afternoon. Winds could gust as high as 90 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 25. Windy, with a south wind 26 to 32 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of 8 to 12 inches possible.

Friday

Snow. The snow could be heavy at times. High near 28. Breezy, with a south wind 20 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday

Mostly sunny, with a high near 24.

Saturday Night

Partly cloudy, with a low around 19.

Sunday

Mostly sunny, with a high near 30.

Sunday Night

Mostly clear, with a low around 25.

Monday

Sunny, with a high near 33.

Monday Night

Mostly clear, with a low around 29.