National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Strong Storm for the West and Southwest; Heavy Snow for the Northern Plains and Upper Midwest

A strong storm will move ashore across California today accompanied by strong winds, heavy rain and heavy snow for the higher terrain. Flooding will be of great concern for Southern California into portions of Arizona through Wednesday. Several feet of snow is expected across central and southern California Mountains into the central Great Basin. Snow will impact the northern Plains into tonight. Read More >

Hazardous Weather Conditions

Current conditions at

HELL HOLE (HLLC1)

Lat: 39.06971°NLon: 120.41989°WElev: 5240ft.

NA

4°C

39°F

Humidity 67%
Wind Speed ESE 7 MPH
Barometer NA
Dewpoint -2°C (29°F)
Visibility NA
Wind Chill1°C (34°F)
Last update 21 Mar 04:09 PM PDT
Extended Forecast for

Donner Summit CA

Winter Weather Advisory until March 22, 05:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until March 22, 05:00am

    NOW until
    5:00am Wed

    Winter Weather Advisory

  • This
    Afternoon

    This Afternoon: Snow showers likely. The snow could be heavy at times. Mostly cloudy, with a high near 0. Southeast wind around 24 km/h, with gusts as high as 39 km/h. Chance of precipitation is 60%. Total daytime snow accumulation of 8 to 12 centimeters possible.

    Heavy Snow

    High: 0 °C

  • Tonight

    Tonight: Snow showers likely before 9pm, then a chance of snow showers after midnight. Widespread frost between 9pm and 10pm. Otherwise, mostly cloudy, with a low around -6. South southeast wind 16 to 21 km/h decreasing to 10 to 15 km/h after midnight. Winds could gust as high as 32 km/h. Chance of precipitation is 60%. New snow accumulation of 2 to 4 centimeters possible.

    Snow Showers
    Likely then
    Chance Snow
    Showers

    Low: -6 °C

  • Wednesday

    Wednesday: Snow showers likely, mainly between 2pm and 5pm. Mostly cloudy, with a high near 0. West southwest wind 13 to 16 km/h. Chance of precipitation is 70%. New snow accumulation of 4 to 8 centimeters possible.

    Slight Chance
    Snow Showers
    then Snow
    Showers
    Likely

    High: 0 °C

  • Wednesday
    Night

    Wednesday Night: Snow showers likely. Mostly cloudy, with a low around -4. Southwest wind 13 to 16 km/h. Chance of precipitation is 70%. New snow accumulation of 2 to 4 centimeters possible.

    Snow Showers
    Likely

    Low: -4 °C

  • Thursday

    Thursday: Snow showers likely. Mostly cloudy, with a high near -2. Southwest wind 16 to 21 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 45 km/h. Chance of precipitation is 70%. New snow accumulation of 3 to 5 centimeters possible.

    Snow Showers
    Likely

    High: -2 °C

  • Thursday
    Night

    Thursday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around -9. Breezy. Chance of precipitation is 70%. New snow accumulation of 5 to 9 centimeters possible.

    Snow Showers
    Likely then
    Chance Snow
    Showers and
    Breezy

    Low: -9 °C

  • Friday

    Friday: A 30 percent chance of snow showers after noon. Partly sunny, with a high near -2. New snow accumulation of less than a half centimeter possible.

    Partly Sunny
    then Chance
    Snow Showers

    High: -2 °C

  • Friday
    Night

    Friday Night: A chance of snow showers, mainly before midnight. Mostly cloudy, with a low around -11.

    Chance Snow
    Showers

    Low: -11 °C

Detailed Forecast

This Afternoon
Snow showers likely. The snow could be heavy at times. Mostly cloudy, with a high near 0. Southeast wind around 24 km/h, with gusts as high as 39 km/h. Chance of precipitation is 60%. Total daytime snow accumulation of 8 to 12 centimeters possible.
Tonight
Snow showers likely before 9pm, then a chance of snow showers after midnight. Widespread frost between 9pm and 10pm. Otherwise, mostly cloudy, with a low around -6. South southeast wind 16 to 21 km/h decreasing to 10 to 15 km/h after midnight. Winds could gust as high as 32 km/h. Chance of precipitation is 60%. New snow accumulation of 2 to 4 centimeters possible.
Wednesday
Snow showers likely, mainly between 2pm and 5pm. Mostly cloudy, with a high near 0. West southwest wind 13 to 16 km/h. Chance of precipitation is 70%. New snow accumulation of 4 to 8 centimeters possible.
Wednesday Night
Snow showers likely. Mostly cloudy, with a low around -4. Southwest wind 13 to 16 km/h. Chance of precipitation is 70%. New snow accumulation of 2 to 4 centimeters possible.
Thursday
Snow showers likely. Mostly cloudy, with a high near -2. Southwest wind 16 to 21 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 45 km/h. Chance of precipitation is 70%. New snow accumulation of 3 to 5 centimeters possible.
Thursday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around -9. Breezy. Chance of precipitation is 70%. New snow accumulation of 5 to 9 centimeters possible.
Friday
A 30 percent chance of snow showers after noon. Partly sunny, with a high near -2. New snow accumulation of less than a half centimeter possible.
Friday Night
A chance of snow showers, mainly before midnight. Mostly cloudy, with a low around -11.
Saturday
A chance of snow showers after noon. Partly sunny, with a high near -3.
Saturday Night
A chance of snow showers, mainly before midnight. Mostly cloudy, with a low around -12.
Sunday
A slight chance of snow showers. Mostly sunny, with a high near -2.
Sunday Night
A chance of snow showers. Partly cloudy, with a low around -11.
Monday
A chance of snow showers. Partly sunny, with a high near -1.
Monday Night
Snow showers likely. Mostly cloudy, with a low around -7.
Tuesday
Snow showers likely. Mostly cloudy, with a high near 0.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Donner Summit CA
 39.3°N 120.4°W (Elev. 2145 m)
Last Update:
3:49 pm PDT Mar 21, 2023
Forecast Valid:
5pm PDT Mar 21, 2023-6pm PDT Mar 28, 2023
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation