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

Winter Storm Warning in effect from December 23, 10:00 PM PST until December 26, 10:00 AM PST

Current conditions at

CRESTVIEW (CRVC1)

Lat: 37.73745°NLon: 118.99658°WElev: 7570.0ft.

33°F

1°C

Humidity	93%
Wind Speed	SSW 0 MPH
Barometer	NA
Dewpoint	31°F (-1°C)
Visibility	NA
Last update	24 Dec 12:53 AM PST

More Information:

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

Extended Forecast for

3 Miles NNE Mammoth Lakes CA

Winter Storm Warning until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Overnight
Low: 28 °F
Rain/Snow
Wednesday
High: 40 °F
Rain/Snow
then Heavy
Snow
Wednesday Night
Low: 24 °F
Heavy Snow
Christmas Day
High: 37 °F
Heavy Snow
and Breezy
Thursday Night
Low: 23 °F
Heavy Snow
and Breezy
Friday
High: 35 °F
Heavy Snow
Friday Night
Low: 8 °F
Snow Likely
Saturday
High: 34 °F
Chance Snow

Detailed Forecast

Overnight

Rain and snow. The rain and snow could be heavy at times. Snow level 8000 feet. Low around 28. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.

Wednesday

Rain and snow, becoming all snow after 7am. The rain and snow could be heavy at times. High near 40. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Wednesday Night

Snow. The snow could be heavy at times. Low around 24. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Christmas Day

Snow. The snow could be heavy at times. High near 37. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 23. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

Friday

Snow. The snow could be heavy at times. High near 35. Southwest wind around 10 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 8. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday

A chance of snow, mainly before 4pm. Mostly sunny, with a high near 34.

Saturday Night

A slight chance of snow before 10pm. Mostly clear, with a low around 8.

Sunday

Sunny, with a high near 37.

Sunday Night

Mostly clear, with a low around 12.

Monday

Sunny, with a high near 43.

Monday Night

Mostly clear, with a low around 18.