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

Mount Shasta (KMHS)

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

Rain

35°F

2°C

Humidity	95%
Wind Speed	N 0 MPH
Barometer	29.53 in (1000.0 mb)
Dewpoint	34°F (1°C)
Visibility	8.00 mi
Last update	24 Dec 11:56 PM PST

More Information:

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

Extended Forecast for

4 Miles NE Dunsmuir CA

Winter Storm Warning December 25, 12:22am until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 25, 12:22am until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Overnight
Low: 33 °F
Rain/Snow
Christmas Day
High: 36 °F
Rain/Snow
then Heavy
Snow
Thursday Night
Low: 31 °F
Heavy Snow
Friday
High: 34 °F
Heavy Snow
Friday Night
Low: 23 °F
Snow then
Chance Snow
Saturday
High: 35 °F
Chance Snow
Saturday Night
Low: 19 °F
Partly Cloudy
Sunday
High: 39 °F
Mostly Sunny

Detailed Forecast

Overnight

Rain and snow showers. The rain and snow could be heavy at times. Snow level 4400 feet. Steady temperature around 33. Southeast wind 9 to 11 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.

Christmas Day

Rain and snow showers, becoming all snow after 7am. The snow could be heavy at times. High near 36. South wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Thursday Night

Snow showers. The snow could be heavy at times. Steady temperature around 31. South wind 6 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.

Friday

Snow showers before 10am, then snow after 10am. The snow could be heavy at times. High near 34. South southwest wind around 8 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Friday Night

Snow, mainly before 10pm. Low around 23. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Saturday

A 30 percent chance of snow, mainly before 10am. Mostly sunny, with a high near 35. New snow accumulation of less than a half inch possible.

Saturday Night

Partly cloudy, with a low around 19.

Sunday

Mostly sunny, with a high near 39.

Sunday Night

Mostly clear, with a low around 25.

Monday

Sunny, with a high near 44.