Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

GERBER RESERVOIR (GRBO3)

Lat: 42.20597°NLon: 121.13806°WElev: 4950.0ft.

NA

24°F

-4°C

Humidity 78%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Last update 20 Jan 02:45 AM PST
Extended Forecast for

9 Miles WNW Bly OR

Air Stagnation Advisory January 20, 03:16am until January 21, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 20, 03:16am until January 21, 04:00pm

    NOW until 4:00pm Wed

    Air Stagnation Advisory

  • Overnight

    Low: 25 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. Calm wind.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48. Calm wind.

    High: 48 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 25. Light east southeast wind.
Tuesday
Mostly sunny, with a high near 49. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 20. Calm wind.
Wednesday
Mostly cloudy, with a high near 48. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 23. Calm wind.
Thursday
Sunny, with a high near 50.
Thursday Night
Mostly clear, with a low around 22.
Friday
Sunny, with a high near 47.
Friday Night
Clear, with a low around 16.
Saturday
Sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
A slight chance of rain and snow. Snow level rising to 5100 feet in the afternoon. Partly sunny, with a high near 48.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Bly OR
 42.44°N 121.23°W (Elev. 4400 ft)
2:21 am PST Jan 20, 2026
3am PST Jan 20, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database