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.

light rain,mist

35°F

2°C

Humidity	95%
Wind Speed	S 4 MPH
Barometer	29.51 in (999.32 mb)
Dewpoint	34°F (1°C)
Visibility	3.00 mi
Wind Chill	32°F (0°C)
Last update	24 Dec 10:56 PM PST

More Information:

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

Extended Forecast for

2 Miles NW Mt Shasta CA

Winter Storm Warning December 24, 11:39pm until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 24, 11:39pm until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Tonight
Low: 36 °F
Rain/Snow and
Breezy
Christmas Day
High: 37 °F
Rain/Snow and
Breezy
Thursday Night
Low: 31 °F
Heavy Snow
Friday
High: 39 °F
Snow then
Rain/Snow
Friday Night
Low: 25 °F
Rain/Snow
Likely then
Chance Snow
Saturday
High: 37 °F
Mostly Sunny
Saturday Night
Low: 21 °F
Partly Cloudy
Sunday
High: 41 °F
Mostly Sunny

Detailed Forecast

Tonight

Rain, possibly mixed with snow, becoming all rain after 1am. The rain could be heavy at times. Snow level 5300 feet. Steady temperature around 36. Breezy, with a south southeast wind 17 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Christmas Day

Rain and snow, becoming all snow after 1pm. Snow level 4800 feet lowering to 3900 feet in the afternoon . Steady temperature around 37. Breezy, with a south southeast wind 18 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 31. South southeast wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Friday

Snow before 4pm, then rain and snow likely. High near 39. South southeast wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Friday Night

Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 25. Southwest wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Saturday

Mostly sunny, with a high near 37.

Saturday Night

Partly cloudy, with a low around 21.

Sunday

Mostly sunny, with a high near 41.

Sunday Night

Mostly clear, with a low around 26.

Monday

Sunny, with a high near 46.

Monday Night

Mostly clear, with a low around 30.