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

EW8163 Hume (E8163)

Lat: 36.78783°NLon: 118.91317°WElev: 5239.0ft.

32°F

0°C

Humidity	95%
Wind Speed	SE 0 MPH
Barometer	29.92 in (1013.21 mb)
Dewpoint	31°F (-1°C)
Visibility	NA
Last update	24 Dec 11:43 AM PST

More Information:

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

Extended Forecast for

20 Miles NE Squaw Valley CA

Flood Watch December 24, 12:10pm until December 26, 04:00pm

Flood Advisory December 24, 12:10pm until December 24, 02:00pm

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

Click here for hazard details and duration

Flood Watch

...

Winter Storm Warning

Flood Watch December 24, 12:10pm until December 26, 04:00pm
Flood Advisory December 24, 12:10pm until December 24, 02:00pm
Winter Storm Warning December 24, 12:10pm until December 26, 10:00pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: 45 °F⇓
Rain
Tonight
Low: 38 °F
Showers
Christmas Day
High: 36 °F
Rain/Snow
Thursday Night
Low: 34 °F
Showers
Friday
High: 36 °F
Rain/Snow
Friday Night
Low: 27 °F
Snow Likely
then Chance
Snow
Saturday
High: 35 °F
Chance Snow
Saturday Night
Low: 29 °F
Mostly Clear

Detailed Forecast

This Afternoon

Rain. Temperature falling to around 38 by 4pm. Wind chill values as low as 31. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Tonight

Showers and possibly a thunderstorm before 1am, then rain after 1am. Snow level 6700 feet. Steady temperature around 38. Wind chill values as low as 30. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Christmas Day

Rain before 9am, then rain and snow between 9am and 1pm, then rain after 1pm. Some thunder is also possible. Snow level 6400 feet. Steady temperature around 36. Wind chill values as low as 26. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday Night

Showers and possibly a thunderstorm. Snow level 6600 feet. Low around 34. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

Friday

Rain and snow showers, becoming all snow after 1pm. Some thunder is also possible. Snow level 5800 feet. High near 36. Southwest wind around 5 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 27. Southeast wind around 5 mph becoming northeast after midnight. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Saturday

A 30 percent chance of snow, mainly after 10am. Mostly sunny, with a high near 35. Northeast wind around 5 mph becoming calm. Little or no snow accumulation expected.

Saturday Night

Mostly clear, with a low around 29. Northeast wind 5 to 10 mph.

Sunday

Sunny, with a high near 41. Northeast wind around 5 mph becoming calm in the afternoon.

Sunday Night

Mostly clear, with a low around 33. Northeast wind around 10 mph.

Monday

Sunny, with a high near 46. Northeast wind around 5 mph.

Monday Night

Mostly clear, with a low around 38. Northeast wind around 10 mph.

Tuesday

Sunny, with a high near 50. Northeast wind around 5 mph becoming calm in the afternoon.