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

46°F

8°C

Humidity	95%
Wind Speed	ESE 6 MPH
Barometer	29.4 in (995.6 mb)
Dewpoint	45°F (7°C)
Visibility	2.50 mi
Wind Chill	43°F (6°C)
Last update	24 Dec 12:56 AM PST

More Information:

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

Extended Forecast for

5 Miles NE Mt Shasta CA

Winter Storm Warning December 24, 01:07am until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 24, 01:07am until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Overnight
Low: 29 °F
Rain/Snow and
Windy
Wednesday
High: 35 °F⇓
Rain/Snow and
Windy then
Heavy Snow
Wednesday Night
Low: 26 °F⇑
Heavy Snow
and Windy
Christmas Day
High: 30 °F
Heavy Snow
and Windy
Thursday Night
Low: 23 °F
Heavy Snow
and Breezy
Friday
High: 27 °F
Heavy Snow
Friday Night
Low: 20 °F
Snow Likely
then Chance
Snow
Saturday
High: 28 °F
Mostly Sunny

Detailed Forecast

Overnight

Rain, possibly mixed with snow. The rain could be heavy at times. Some thunder is also possible. Snow level 7800 feet. Low around 29. Windy, with a south southeast wind around 38 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.

Wednesday

Rain and snow, becoming all snow after noon. The rain and snow could be heavy at times. Some thunder is also possible. Temperature falling to around 28 by 4pm. Windy, with a south wind 36 to 46 mph decreasing to 15 to 25 mph in the morning. Winds could gust as high as 75 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.

Wednesday Night

Snow, mainly after 8pm. The snow could be heavy at times. Temperature rising to around 29 by 11pm. Windy, with a south southeast wind 28 to 36 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 14 to 20 inches possible.

Christmas Day

Snow. The snow could be heavy at times. High near 30. Windy, with a south southeast wind 42 to 47 mph decreasing to 28 to 33 mph in the afternoon. Winds could gust as high as 75 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 23. Breezy, with a south wind 18 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 10 to 16 inches possible.

Friday

Snow. The snow could be heavy at times. High near 27. Chance of precipitation is 90%. New snow accumulation of 7 to 11 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 20. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Saturday

Mostly sunny, with a high near 28.

Saturday Night

Partly cloudy, with a low around 16.

Sunday

Mostly sunny, with a high near 32.

Sunday Night

Mostly clear, with a low around 22.

Monday

Sunny, with a high near 36.

Monday Night

Mostly clear, with a low around 25.