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

YOSEMITE VALLEY NEAR YOSEMITE VILLAGE 1NNW YYV (YYVC1)

Lat: 37.74972°NLon: 119.58944°WElev: 4022.0ft.

54°F

12°C

Humidity	45%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	23 Dec 07:15 PM PST

More Information:

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

Extended Forecast for

9 Miles NNW Yosemite Valley CA

Flood Watch December 23, 08:25pm until December 26, 04:00pm

Winter Storm Warning December 23, 08:25pm until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Winter Storm Warning

Flood Watch December 23, 08:25pm until December 26, 04:00pm
Winter Storm Warning December 23, 08:25pm until December 26, 10:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 28 °F
Snow
Wednesday
High: 40 °F
Snow
Wednesday Night
Low: 28 °F
Heavy Snow
Christmas Day
High: 35 °F
Heavy Snow
Thursday Night
Low: 20 °F
Heavy Snow
Friday
High: 31 °F
Heavy Snow
Friday Night
Low: 11 °F
Snow Likely
then Chance
Snow
Saturday
High: 36 °F
Slight Chance
Snow

Detailed Forecast

Tonight

Snow, mainly after 10pm. Low around 28. South southeast wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible.

Wednesday

Snow. High near 40. Wind chill values as low as 22. South wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.

Wednesday Night

Snow showers before 10pm, then snow between 10pm and 1am, then snow showers after 1am. The snow could be heavy at times. Some thunder is also possible. Steady temperature around 28. Wind chill values as low as 17. South wind 5 to 10 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.

Christmas Day

Snow. The snow could be heavy at times. High near 35. Wind chill values as low as 16. South wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 22 to 28 inches possible.

Thursday Night

Snow showers before 1am, then snow after 1am. The snow could be heavy at times. Some thunder is also possible. Low around 20. South southwest wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 19 to 25 inches possible.

Friday

Snow. The snow could be heavy at times. High near 31. South southwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 11. Calm wind. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Saturday

A 20 percent chance of snow. Mostly sunny, with a high near 36. Calm wind.

Saturday Night

Mostly clear, with a low around 15. East northeast wind around 5 mph, with gusts as high as 15 mph.

Sunday

Sunny, with a high near 41. East northeast wind around 5 mph becoming calm in the morning. Winds could gust as high as 15 mph.

Sunday Night

Mostly clear, with a low around 20. East northeast wind around 5 mph, with gusts as high as 15 mph.

Monday

Sunny, with a high near 45. Northeast wind around 5 mph becoming calm in the morning. Winds could gust as high as 15 mph.

Monday Night

Mostly clear, with a low around 26. East northeast wind around 5 mph.