Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

Winter Storm Warning until April 12, 11:00 PM PDT

Current conditions at

DEVILS POST PILE RAWS NEAR MAMMOTH LAKES 6WSW DPO (DPPC1)

Lat: 37.63°NLon: 119.09333°WElev: 8024.0ft.

22°F

-6°C

Humidity	94%
Wind Speed	SSW 2 MPH
Barometer	NA
Dewpoint	21°F (-6°C)
Visibility	NA
Last update	12 Apr 06:00 AM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

12 Miles SSE Mammoth Lakes CA

Winter Storm Warning April 12, 06:42am until April 12, 11:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning April 12, 06:42am until April 12, 11:00pm
NOW until 11:00pm Sun
Winter Storm Warning
Today
High: 19 °F
Heavy Snow
and Breezy
Tonight
Low: 8 °F
Chance Snow
Showers then
Slight Chance
Snow
Monday
High: 24 °F
Chance Snow
Monday Night
Low: 12 °F
Partly Cloudy
Tuesday
High: 31 °F
Cold
Tuesday Night
Low: 18 °F
Mostly Clear
Wednesday
High: 33 °F
Mostly Sunny
Wednesday Night
Low: 20 °F
Mostly Cloudy

Detailed Forecast

Today

Snow showers before 8am, then snow between 8am and 11am, then snow showers likely after 11am. The snow could be heavy at times. Some thunder is also possible. High near 19. Wind chill values as low as -2. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 4 to 8 inches possible.

Tonight

A chance of snow showers before 8pm, then a chance of snow, mainly between 8pm and 11pm. Some thunder is also possible. Mostly cloudy, with a low around 8. Wind chill values as low as -2. South southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New snow accumulation of 2 to 4 inches possible.

Monday

A chance of snow, mainly between 11am and 2pm, then a chance of snow showers after 2pm. Some thunder is also possible. Partly sunny and cold, with a high near 24. Wind chill values as low as zero. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%. New snow accumulation of around an inch possible.

Monday Night

Partly cloudy, with a low around 12. Wind chill values as low as 3. West wind 5 to 10 mph, with gusts as high as 15 mph.

Tuesday

Sunny and cold, with a high near 31. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Tuesday Night

Mostly clear, with a low around 18. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Wednesday

Mostly sunny, with a high near 33. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

Wednesday Night

Mostly cloudy, with a low around 20. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Thursday

A 10 percent chance of snow showers after 11am. Some thunder is also possible. Mostly sunny and cold, with a high near 30. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

Thursday Night

Partly cloudy, with a low around 11. West wind around 15 mph becoming north northeast after midnight. Winds could gust as high as 30 mph.

Friday

Sunny, with a high near 33. East wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

Friday Night

Mostly clear, with a low around 17. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Saturday

Sunny, with a high near 37. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.