Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Current conditions at

MANZANITA LAKE (VIOC1)

Lat: 40.54011°NLon: 121.58016°WElev: 5732.0ft.

NA

45°F

7°C

Humidity 88%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 12 Nov 06:52 PM PST
Extended Forecast for

20 Miles NNW Chester CA

  • Tonight

    Tonight: A 30 percent chance of showers after 4am.  Mostly cloudy, with a steady temperature around 38. Breezy, with a south wind 20 to 29 mph, with gusts as high as 50 mph.  New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: Showers, mainly after 7am. The rain could be heavy at times.  High near 38. Breezy, with a south southwest wind 23 to 28 mph decreasing to 16 to 21 mph in the afternoon. Winds could gust as high as 50 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 38 °F

    Heavy Rain
    and Breezy

  • Thursday Night

    Thursday Night: Rain showers before 10pm, then rain and snow showers likely between 10pm and 1am, then snow showers likely after 1am.  Low around 29. South wind 14 to 16 mph, with gusts as high as 32 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 29 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Friday

    Friday: A 40 percent chance of snow showers.  Partly sunny, with a high near 37. South wind around 6 mph becoming calm  in the morning.  New snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30. Calm wind becoming southeast around 6 mph in the evening.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 32.

    Low: 32 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Rain likely, possibly mixed with snow showers, mainly after 4pm.  Partly sunny, with a high near 37.

    High: 37 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Rain and snow showers likely, becoming all snow after 7pm.  Mostly cloudy, with a low around 25.

    Low: 25 °F

    Rain/Snow
    Likely then
    Snow Showers
    Likely

Detailed Forecast

Tonight
A 30 percent chance of showers after 4am. Mostly cloudy, with a steady temperature around 38. Breezy, with a south wind 20 to 29 mph, with gusts as high as 50 mph. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers, mainly after 7am. The rain could be heavy at times. High near 38. Breezy, with a south southwest wind 23 to 28 mph decreasing to 16 to 21 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Thursday Night
Rain showers before 10pm, then rain and snow showers likely between 10pm and 1am, then snow showers likely after 1am. Low around 29. South wind 14 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Friday
A 40 percent chance of snow showers. Partly sunny, with a high near 37. South wind around 6 mph becoming calm in the morning. New snow accumulation of less than a half inch possible.
Friday Night
Partly cloudy, with a low around 30. Calm wind becoming southeast around 6 mph in the evening.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 32.
Sunday
Rain likely, possibly mixed with snow showers, mainly after 4pm. Partly sunny, with a high near 37.
Sunday Night
Rain and snow showers likely, becoming all snow after 7pm. Mostly cloudy, with a low around 25.
Monday
A chance of snow showers, mainly before 4pm. Partly sunny, with a high near 28.
Monday Night
A slight chance of snow showers. Partly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
A slight chance of snow showers. Partly cloudy, with a low around 22.
Wednesday
A chance of snow showers. Partly sunny, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
20 Miles NNW Chester CA
 40.58°N 121.33°W (Elev. 7106 ft)
2:01 pm PST Nov 12, 2025
7pm PST Nov 12, 2025-6pm PST Nov 19, 2025
 
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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