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

Trinity Center (KO86)

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

Mist

48°F

9°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	29.45 in (997.29 mb)
Dewpoint	48°F (9°C)
Visibility	5.00 mi
Last update	24 Dec 12:15 AM PST

More Information:

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

Extended Forecast for

3 Miles ESE Covington Mill CA

Flood Watch December 24, 12:36am until December 26, 10:00pm

Wind Advisory until December 24, 10:00am

Winter Storm Warning December 24, 04:00pm until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Wind Advisory

Winter Storm Warning

Flood Watch December 24, 12:36am until December 26, 10:00pm
Wind Advisory until December 24, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 38 °F
Rain and
Windy
Wednesday
High: 44 °F
Rain and
Breezy
Wednesday Night
Low: 40 °F
Rain and
Windy
Christmas Day
High: 38 °F
Rain and
Windy
Thursday Night
Low: 31 °F
Rain/Snow
Friday
High: 35 °F
Rain/Snow
Friday Night
Low: 27 °F
Rain/Snow
Likely then
Chance
Rain/Snow
Saturday
High: 39 °F
Mostly Sunny

Detailed Forecast

Overnight

Rain. Low around 38. Windy, with a south southeast wind around 22 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Wednesday

Rain. High near 44. Breezy, with a southeast wind 16 to 21 mph decreasing to 7 to 12 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday Night

Rain. Steady temperature around 40. Windy, with a southeast wind 10 to 15 mph increasing to 19 to 24 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Christmas Day

Rain. High near 38. Windy, with a south southeast wind 18 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Thursday Night

Rain and snow, becoming all snow after 4am. Low around 31. Southeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Friday

Snow before 10am, then rain and snow. High near 35. East southeast wind 5 to 7 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday Night

Rain and snow likely before 1am, then a chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday

Mostly sunny, with a high near 39.

Saturday Night

Mostly clear, with a low around 25.

Sunday

Mostly sunny, with a high near 45.

Sunday Night

Mostly clear, with a low around 30.

Monday

Sunny, with a high near 50.

Monday Night

Mostly clear, with a low around 33.