Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Shasta (KMHS)

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

rain,mist

44°F

7°C

Humidity	95%
Wind Speed	SE 3 MPH
Barometer	29.45 in (997.29 mb)
Dewpoint	43°F (6°C)
Visibility	2.50 mi
Last update	23 Dec 11:56 PM PST

More Information:

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

Extended Forecast for

6 Miles NE Mt Shasta CA

Winter Storm Warning December 24, 12:36am until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 24, 12:36am until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Overnight
Low: 28 °F
Rain/Snow and
Windy
Wednesday
High: 37 °F⇓
Heavy Snow
and Windy
Wednesday Night
Low: 30 °F
Heavy Snow
and Windy
Christmas Day
High: 31 °F
Heavy Snow
and Windy
Thursday Night
Low: 27 °F
Heavy Snow
and Breezy
Friday
High: 30 °F
Heavy Snow
and Breezy
Friday Night
Low: 25 °F
Snow Likely
then Chance
Snow
Saturday
High: 28 °F
Mostly Sunny

Detailed Forecast

Overnight

Rain and snow. The rain and snow could be heavy at times. Some thunder is also possible. Snow level 7800 feet. Low around 28. Windy, with a south southeast wind 45 to 50 mph, with gusts as high as 80 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 12 to 18 inches possible.

Wednesday

Snow, mainly before 2pm. The snow could be heavy at times. Some thunder is also possible. Temperature falling to around 29 by 10am. Windy, with a south wind 40 to 50 mph decreasing to 17 to 27 mph in the morning. Winds could gust as high as 80 mph. Chance of precipitation is 80%. New snow accumulation of 10 to 14 inches possible.

Wednesday Night

Snow, mainly after 8pm. The snow could be heavy at times. Steady temperature around 30. Windy, with a south southeast wind 33 to 38 mph increasing to 39 to 44 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 100%. New snow accumulation of 21 to 27 inches possible.

Christmas Day

Snow. The snow could be heavy at times. High near 31. Windy, with a south southeast wind 45 to 55 mph decreasing to 32 to 42 mph in the afternoon. Winds could gust as high as 90 mph. Chance of precipitation is 100%. New snow accumulation of 18 to 24 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 27. Breezy, with a south wind 22 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New snow accumulation of 13 to 19 inches possible.

Friday

Snow. The snow could be heavy at times. High near 30. Breezy. Chance of precipitation is 90%. New snow accumulation of 10 to 14 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

Saturday

Mostly sunny, with a high near 28.

Saturday Night

Partly cloudy, with a low around 20.

Sunday

Mostly sunny, with a high near 32.

Sunday Night

Mostly clear, with a low around 26.

Monday

Sunny, with a high near 36.

Monday Night

Mostly clear, with a low around 30.