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

SCE Boulder Campground (615SE)

Lat: 37.93007°NLon: 119.16851°WElev: 7413.0ft.

29°F

-2°C

Humidity	100%
Wind Speed	ENE 9 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Wind Chill	21°F (-6°C)
Last update	25 Dec 01:50 PM PST

More Information:

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

Extended Forecast for

6 Miles NW Tioga Pass CA

Winter Storm Warning December 25, 02:05pm until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 25, 02:05pm until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Christmas Day
High: 20 °F
Heavy Snow
and Dense
Freezing Fog
Tonight
Low: 15 °F
Heavy Snow
and Dense
Freezing Fog
Friday
High: 19 °F
Heavy Snow
and Dense
Freezing Fog
Friday Night
Low: 4 °F
Snow Likely
then Chance
Snow
Saturday
High: 19 °F
Slight Chance
Snow then
Sunny
Saturday Night
Low: 5 °F
Mostly Clear
Sunday
High: 23 °F
Becoming
Sunny
Sunday Night
Low: 10 °F
Mostly Clear
then Mostly
Clear and
Blustery

Detailed Forecast

Christmas Day

Snow before 4pm, then snow showers after 4pm. The snow could be heavy at times. Some thunder is also possible. Widespread dense freezing fog. High near 20. Very windy, with a southwest wind around 40 mph, with gusts as high as 60 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 11 to 17 inches possible.

Tonight

Snow showers before 7pm, then snow after 7pm. The snow could be heavy at times. Some thunder is also possible. Patchy fog after 4am. Widespread dense freezing fog before 4am. Low around 15. Very windy, with a southwest wind 45 to 50 mph, with gusts as high as 75 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.

Friday

Snow. The snow could be heavy at times. Widespread dense freezing fog before 3pm. High near 19. Very windy, with a southwest wind 30 to 40 mph decreasing to 20 to 30 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 80%. New snow accumulation of 6 to 10 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 4. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Saturday

A 20 percent chance of snow before 10am. Sunny, with a high near 19. West wind 5 to 10 mph.

Saturday Night

Mostly clear, with a low around 5. West wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday

Partly sunny, then gradually becoming sunny, with a high near 23.

Sunday Night

Mostly clear, with a low around 10. Blustery.

Monday

Sunny, with a high near 27. Blustery.

Monday Night

Mostly clear, with a low around 16.