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

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Current conditions at

GERBER RESERVOIR (GRBO3)

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

NA

43°F

6°C

Humidity 74%
Wind Speed S 5 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 08 Dec 10:45 PM PST
Extended Forecast for

11 Miles NE Bonanza OR

Wind Advisory until December 9, 10:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 9, 10:00pm

    NOW until 10:00pm Tue

    Wind Advisory

  • Tonight

    Low: 35 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. Breezy, with a west southwest wind 23 to 25 mph, with gusts as high as 39 mph.

    High: 42 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. South southwest wind 17 to 20 mph, with gusts as high as 28 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. South wind 15 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. South wind around 15 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 35. Breezy, with a south southwest wind 24 to 26 mph, with gusts as high as 41 mph.
Tuesday
Mostly sunny, with a high near 42. Breezy, with a west southwest wind 23 to 25 mph, with gusts as high as 39 mph.
Tuesday Night
Mostly cloudy, with a low around 37. South southwest wind 17 to 20 mph, with gusts as high as 28 mph.
Wednesday
Mostly sunny, with a high near 45. South wind 15 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 33. South wind around 15 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 46.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 32.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Partly sunny, with a high near 41.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 34.
Monday
A chance of rain and snow. Partly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NE Bonanza OR
 42.33°N 121.26°W (Elev. 6604 ft)
Last Update:
9:41 pm PST Dec 8, 2025
Forecast Valid:
11pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation