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

Trinity Center (KO86)

Lat: 40.98452°NLon: 122.69342°WElev: 2385.0ft.

Overcast

39°F

4°C

Humidity	100%
Wind Speed	NW 3 MPH
Barometer	29.57 in (1001.36 mb)
Dewpoint	39°F (4°C)
Visibility	7.00 mi
Last update	25 Dec 08:15 PM PST

More Information:

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

Extended Forecast for

5 Miles WNW Covington Mill CA

Flood Watch December 25, 08:33pm until December 26, 10:00pm

Winter Storm Warning December 25, 08:33pm until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Winter Storm Warning

Flood Watch December 25, 08:33pm until December 26, 10:00pm
Winter Storm Warning December 25, 08:33pm until December 26, 10:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 25 °F
Heavy Snow
and Windy
Friday
High: 29 °F
Heavy Snow
and Breezy
Friday Night
Low: 21 °F
Snow Showers
Likely then
Chance Snow
Showers
Saturday
High: 29 °F
Slight Chance
Snow Showers
Saturday Night
Low: 21 °F
Partly Cloudy
Sunday
High: 36 °F
Mostly Sunny
Sunday Night
Low: 28 °F
Partly Cloudy
Monday
High: 42 °F
Sunny

Detailed Forecast

Tonight

Snow showers. The snow could be heavy at times. Low around 25. Windy, with a southwest wind around 22 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 8 to 12 inches possible.

Friday

Snow showers. The snow could be heavy at times. High near 29. Breezy, with a south wind 15 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

Friday Night

Snow showers likely, mainly before 10pm. Mostly cloudy, with a low around 21. West northwest wind 11 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Saturday

A 20 percent chance of snow showers. Mostly sunny, with a high near 29. Northwest wind 7 to 9 mph.

Saturday Night

Partly cloudy, with a low around 21. North northwest wind around 10 mph.

Sunday

Mostly sunny, with a high near 36. North northwest wind 6 to 11 mph.

Sunday Night

Partly cloudy, with a low around 28.

Monday

Sunny, with a high near 42.

Monday Night

Partly cloudy, with a low around 34.