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

HIGH GLADE LOOKOUT (HGLC1)

Lat: 39.2089°NLon: 122.80999°WElev: 4807.0ft.

38°F

3°C

Humidity	100%
Wind Speed	SSE 43 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Wind Chill	24°F (-4°C)
Last update	24 Dec 09:36 PM PST

More Information:

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

Extended Forecast for

19 Miles NE Lakeport CA

Flood Watch December 24, 09:50pm until December 26, 10:00pm

Wind Advisory December 24, 09:50pm until December 25, 10:00am

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Watch December 24, 09:50pm until December 26, 10:00pm
Wind Advisory December 24, 09:50pm until December 25, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 37 °F
Rain/Snow and
Very Windy
Christmas Day
High: 36 °F
Heavy Snow
and Very
Windy
Thursday Night
Low: 32 °F
Heavy Snow
and Windy
Friday
High: 36 °F
Snow and
Windy
Friday Night
Low: 33 °F
Snow Likely
then Chance
Snow
Saturday
High: 37 °F
Slight Chance
Snow then
Sunny
Saturday Night
Low: 32 °F
Mostly Clear
and Breezy
Sunday
High: 41 °F
Mostly Sunny

Detailed Forecast

Tonight

Rain and snow showers. The rain could be heavy at times. Some thunder is also possible. Steady temperature around 37. Very windy, with a south wind 29 to 34 mph, with gusts as high as 90 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.

Christmas Day

Snow before 1pm, then snow showers between 1pm and 4pm, then snow after 4pm. The snow could be heavy at times. Some thunder is also possible. High near 36. Very windy, with a south southwest wind 24 to 32 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 32. Windy, with a south southwest wind around 31 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Friday

Snow. High near 36. Windy, with a south southwest wind 18 to 26 mph, with gusts as high as 70 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 33. South southwest wind around 15 mph becoming northwest after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Saturday

A 20 percent chance of snow before 10am. Mostly sunny, with a high near 37. North northwest wind 10 to 14 mph.

Saturday Night

Mostly clear, with a low around 32. Breezy.

Sunday

Mostly sunny, with a high near 41.

Sunday Night

Clear, with a low around 34.

Monday

Sunny, with a high near 45.

Monday Night

Mostly clear, with a low around 37.