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 Weather Advisory in effect from December 26, 04:00 AM PST until December 27, 04:00 PM PST

Current conditions at

DEE FLAT (DEFO)

Lat: 45.58639°NLon: 121.64056°WElev: 1260.0ft.

41°F

5°C

Humidity	94%
Wind Speed	NNE 0 MPH
Barometer	NA
Dewpoint	39°F (4°C)
Visibility	NA
Last update	25 Dec 03:30 PM PST

More Information:

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

Extended Forecast for

7 Miles ESE Cascade Locks OR

Winter Weather Advisory December 26, 04:00am until December 27, 04:00pm

Click here for hazard details and duration

Winter Weather Advisory

Christmas Day
High: 36 °F
Chance Snow
Showers
Tonight
Low: 29 °F
Chance Snow
Showers then
Snow Showers
Friday
High: 31 °F⇓
Snow and
Windy
Friday Night
Low: 25 °F
Snow and Very
Windy
Saturday
High: 27 °F
Snow Likely
and Windy
then Chance
Snow Showers
and Breezy
Saturday Night
Low: 23 °F
Mostly Cloudy
Sunday
High: 29 °F
Partly Sunny
Sunday Night
Low: 22 °F
Mostly Cloudy
and Breezy
Monday
High: 28 °F
Mostly Cloudy
and Breezy
then Partly
Sunny

Detailed Forecast

Christmas Day

A 50 percent chance of snow showers. Partly sunny, with a high near 36. South wind around 6 mph. Total daytime snow accumulation of less than a half inch possible.

Tonight

Snow showers, mainly after 3am. Low around 29. South wind 8 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Friday

Snow. Temperature falling to around 27 by 5pm. Windy, with a west wind 14 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Friday Night

Snow. Low around 25. Very windy, with a west wind 32 to 34 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Saturday

Snow likely before 10am, then a chance of snow showers after 10am. Mostly cloudy, with a high near 27. Windy, with a west wind 23 to 28 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Saturday Night

Mostly cloudy, with a low around 23.

Sunday

Partly sunny, with a high near 29.

Sunday Night

Mostly cloudy, with a low around 22. Breezy.

Monday

Partly sunny, with a high near 28. Breezy.

Monday Night

Mostly cloudy, with a low around 23. Breezy.

Tuesday

Partly sunny, with a high near 31.