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° N Lon: 122.31702° W Elev: 3540.0 ft.

heavy rain,mist

47°F

8°C

Humidity	96%
Wind Speed	ESE 4 MPH
Barometer	29.39 in (995.26 mb)
Dewpoint	46°F (8°C)
Visibility	2.00 mi
Wind Chill	45°F (7°C)
Last update	24 Dec 01:56 AM PST

More Information:

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

Detailed forecast for

South Central Siskiyou County

Tonight

Rain showers. Locally heavy rainfall possible in the late evening and early morning. Snow level 7000 feet. Lows in the mid 30s to lower 40s. Very windy. Southeast winds 25 to 40 mph with gusts to around 60 mph. Chance of showers near 100 percent.

Wednesday

Rain and snow showers in the morning, then rain and snow showers likely in the afternoon. Snow may be heavy at times in the morning. Snow level 4000 feet lowering to 3500 feet in the afternoon. Snow accumulation of 3 to 5 inches. Highs in the lower to mid 40s. Very windy. South winds 25 to 40 mph with gusts to around 60 mph decreasing to 10 to 20 mph with gusts to around 35 mph in the afternoon. Chance of precipitation 80 percent.

Wednesday Night

Rain and snow showers. Precipitation may be heavy at times. Snow level 3500 feet. Snow accumulation of 2 to 4 inches at lower elevations and 10 to 16 inches above 4000 feet. Lows in the lower to mid 30s. Windy. Southeast winds 20 to 30 mph with gusts to around 45 mph. Chance of precipitation near 100 percent.

Christmas Day

Rain and snow showers. Precipitation may be heavy at times. Snow level 3300 feet. Highs in the mid 30s to lower 40s. Windy. South winds 20 to 30 mph. Gusts up to 45 mph until early afternoon. Chance of precipitation near 100 percent.

Thursday Night

Rain and snow showers. Snow may be heavy at times. Snow level 3400 feet. Lows in the mid 20s to lower 30s. South winds 10 to 20 mph. Chance of precipitation 90 percent.

Friday

Rain and snow showers in the morning, then rain and snow in the afternoon. Snow may be heavy at times in the morning. Highs in the mid 30s to lower 40s.

Friday Night

Mostly cloudy. Rain and snow likely in the evening, then chance of snow after midnight. Lows in the lower to mid 20s.

Saturday

Partly cloudy with a slight chance of snow in the morning, then sunny in the afternoon. Highs in the mid 30s to lower 40s.

Saturday Night

Mostly clear. Lows 15 to 25.

Sunday

Sunny in the morning then becoming partly cloudy. Highs in the lower to mid 40s.

Sunday Night Through Monday Night

Mostly clear. Lows in the lower 20s to lower 30s. Highs in the lower 40s to lower 50s.

Tuesday

Sunny. Highs in the mid 40s to mid 50s.