Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

ROCK CREEK (RCEC1)

Lat: 37.55983°NLon: 118.67841°WElev: 7103.0ft.

NA

43°F

6°C

Humidity 36%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 12 Apr 02:04 PM PDT
Extended Forecast for

18 Miles SE Mammoth Lakes CA

Winter Storm Warning April 12, 02:22pm until April 12, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 12, 02:22pm until April 12, 11:00pm

    NOW until 11:00pm Sun

    Winter Storm Warning

  • This Afternoon

    High: 30 °F

    Chance Snow
    Showers and
    Breezy

  • Tonight

    Tonight: A 30 percent chance of snow showers, mainly before 8pm.  Partly cloudy, with a low around 12. Breezy, with a southwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph.  New snow accumulation of less than one inch possible.

    Low: 12 °F

    Chance Snow
    Showers and
    Breezy then
    Mostly Clear

  • Monday

    Monday: A 50 percent chance of snow showers, mainly after 11am. Some thunder is also possible.  Mostly sunny, with a high near 32. Southwest wind 5 to 10 mph becoming northwest in the morning.  New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 15. West wind around 15 mph, with gusts as high as 25 mph.

    Low: 15 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 40. West wind 5 to 10 mph.

    High: 40 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21. Southwest wind around 10 mph.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. Breezy.

    Low: 23 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

This Afternoon
A 50 percent chance of snow showers. Some thunder is also possible. Partly sunny, with a high near 30. Breezy, with a southwest wind around 25 mph, with gusts as high as 35 mph. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
A 30 percent chance of snow showers, mainly before 8pm. Partly cloudy, with a low around 12. Breezy, with a southwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph. New snow accumulation of less than one inch possible.
Monday
A 50 percent chance of snow showers, mainly after 11am. Some thunder is also possible. Mostly sunny, with a high near 32. Southwest wind 5 to 10 mph becoming northwest in the morning. New snow accumulation of less than a half inch possible.
Monday Night
Mostly clear, with a low around 15. West wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 40. West wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 21. Southwest wind around 10 mph.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 23. Breezy.
Thursday
Mostly sunny, with a high near 39. Breezy.
Thursday Night
Mostly clear, with a low around 13. Blustery.
Friday
Sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 20.
Saturday
Sunny, with a high near 46.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles SE Mammoth Lakes CA
 37.49°N 118.71°W (Elev. 10049 ft)
11:30 am PDT Apr 12, 2026
2pm PDT Apr 12, 2026-6pm PDT Apr 18, 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