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

Winter Storm Warning until December 26, 04:00 PM PST

Current conditions at

Montague Siskiyou County Airport (KSIY)

Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.

Partly Cloudy

36°F

2°C

Humidity	93%
Wind Speed	N 0 MPH
Barometer	29.68 in (1005.08 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Last update	26 Dec 02:20 AM PST

More Information:

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

Extended Forecast for

13 Miles NW Fort Jones CA

Winter Storm Warning December 26, 02:43am until December 26, 04:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 26, 02:43am until December 26, 04:00pm
NOW until 4:00pm Fri
Winter Storm Warning
Overnight
Low: 35 °F
Rain/Snow
Friday
High: 45 °F
Rain/Snow
Friday Night
Low: 27 °F
Rain/Snow
Likely then
Partly Cloudy
Saturday
High: 42 °F
Mostly Sunny
Saturday Night
Low: 23 °F
Partly Cloudy
Sunday
High: 44 °F
Mostly Sunny
Sunday Night
Low: 25 °F
Partly Cloudy
Monday
High: 47 °F
Sunny

Detailed Forecast

Overnight

Snow, possibly mixed with rain, mainly after 5am. Snow level 3100 feet. Low around 35. South southeast wind around 6 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Friday

Rain and snow before noon, then rain between noon and 5pm, then rain and snow likely after 5pm. Snow level 3600 feet rising to 4300 feet in the afternoon. High near 45. Southeast wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.

Friday Night

Rain showers likely, possibly mixing with snow after 9pm, then gradually ending. Snow level 3400 feet lowering to 2200 feet after midnight . Mostly cloudy, with a low around 27. West northwest wind 5 to 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Saturday

Mostly sunny, with a high near 42. Northwest wind around 6 mph.

Saturday Night

Partly cloudy, with a low around 23. Calm wind.

Sunday

Mostly sunny, with a high near 44.

Sunday Night

Partly cloudy, with a low around 25.

Monday

Sunny, with a high near 47.

Monday Night

Mostly clear, with a low around 28.