Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

GERBER RESERVOIR (GRBO3)

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

NA

39°F

4°C

Humidity 71%
Wind Speed WSW 4 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 13 Apr 10:45 AM PDT
Extended Forecast for

14 Miles NNE Bonanza OR

  • Today

    Today: A slight chance of showers between 1pm and 4pm.  Snow level 5400 feet rising to 6000 feet. Partly sunny, with a high near 51. West wind 5 to 8 mph.  Chance of precipitation is 20%.

    High: 51 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 23. West northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. Light south wind becoming west southwest 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 2am, then snow showers likely, possibly mixed with rain.  Snow level 6400 feet lowering to 5000 feet after midnight . Mostly cloudy, with a low around 32. West wind 6 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Showers then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Rain and snow showers likely before 11am, then rain showers between 11am and 2pm, then rain, possibly mixed with snow showers after 2pm.  Snow level 5000 feet rising to 5800 feet. High near 48. Southwest wind 6 to 15 mph, with gusts as high as 32 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 48 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain, possibly mixed with snow showers, becoming all snow after 8pm.  Low around 19. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: A 20 percent chance of snow.  Mostly sunny, with a high near 46.

    High: 46 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers between 1pm and 4pm. Snow level 5400 feet rising to 6000 feet. Partly sunny, with a high near 51. West wind 5 to 8 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 23. West northwest wind 5 to 9 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 58. Light south wind becoming west southwest 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A chance of rain showers before 2am, then snow showers likely, possibly mixed with rain. Snow level 6400 feet lowering to 5000 feet after midnight . Mostly cloudy, with a low around 32. West wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday
Rain and snow showers likely before 11am, then rain showers between 11am and 2pm, then rain, possibly mixed with snow showers after 2pm. Snow level 5000 feet rising to 5800 feet. High near 48. Southwest wind 6 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain, possibly mixed with snow showers, becoming all snow after 8pm. Low around 19. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
A 20 percent chance of snow. Mostly sunny, with a high near 46.
Thursday Night
Mostly clear, with a low around 18.
Friday
Sunny, with a high near 56.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A slight chance of rain. Snow level 7000 feet lowering to 6100 feet after midnight . Mostly cloudy, with a low around 32.
Sunday
A chance of rain. Snow level 5800 feet. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles NNE Bonanza OR
 42.4°N 121.34°W (Elev. 4400 ft)
10:46 am PDT Apr 13, 2026
11am PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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Additional Resources

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