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.

Overcast

44°F

7°C

Humidity	82%
Wind Speed	ESE 5 MPH
Barometer	29.61 in (1002.71 mb)
Dewpoint	39°F (4°C)
Visibility	10.00 mi
Wind Chill	41°F (5°C)
Last update	24 Dec 03:56 PM PST

More Information:

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

Extended Forecast for

9 Miles WSW Dunsmuir CA

Winter Storm Warning December 24, 04:10pm until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 24, 04:10pm until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
This Afternoon
High: 35 °F
Slight Chance
Snow
Tonight
Low: 34 °F
Rain/Snow
Christmas Day
High: 35 °F⇓
Heavy Snow
Thursday Night
Low: 30 °F
Heavy Snow
Friday
High: 32 °F
Heavy Snow
Friday Night
Low: 26 °F
Snow then
Chance Snow
Saturday
High: 32 °F
Slight Chance
Snow
Saturday Night
Low: 22 °F
Partly Cloudy

Detailed Forecast

This Afternoon

A 20 percent chance of snow. Cloudy, with a steady temperature around 35. South southeast wind around 14 mph, with gusts as high as 21 mph.

Tonight

Rain and snow. The rain and snow could be heavy at times. Snow level 5300 feet. Steady temperature around 34. South southeast wind 13 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.

Christmas Day

Snow, mainly before 1pm, then snow showers after 1pm. The snow could be heavy at times. Some thunder is also possible. Temperature falling to around 31 by 10am. South wind 17 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of 13 to 19 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 30. South wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 14 to 20 inches possible.

Friday

Snow. The snow could be heavy at times. High near 32. South wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Friday Night

Snow, mainly before 10pm. Low around 26. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Saturday

A 20 percent chance of snow. Mostly sunny, with a high near 32.

Saturday Night

Partly cloudy, with a low around 22.

Sunday

Mostly sunny, with a high near 36.

Sunday Night

Mostly clear, with a low around 28.

Monday

Sunny, with a high near 41.