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.

25°F

-4°C

Humidity	94%
Wind Speed	SSW 4 MPH
Barometer	NA
Dewpoint	24°F (-4°C)
Visibility	NA
Wind Chill	20°F (-7°C)
Last update	12 Apr 04:00 AM PDT

More Information:

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

Extended Forecast for

5 Miles W Mammoth Lakes CA

Winter Storm Warning April 12, 04:54am until April 12, 11:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning April 12, 04:54am until April 12, 11:00pm
NOW until 11:00pm Sun
Winter Storm Warning
Overnight
Low: 22 °F
Heavy Snow
Sunday
High: 29 °F
Heavy Snow
Sunday Night
Low: 9 °F
Snow Showers
Likely then
Slight Chance
Snow
Monday
High: 35 °F
Chance Snow
Monday Night
Low: 13 °F
Partly Cloudy
Tuesday
High: 42 °F
Sunny
Tuesday Night
Low: 18 °F
Mostly Clear
Wednesday
High: 44 °F
Mostly Sunny

Detailed Forecast

Overnight

Snow showers. The snow could be heavy at times. Some thunder is also possible. Steady temperature around 22. Wind chill values as low as 9. Southwest wind around 15 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 10 to 16 inches possible.

Sunday

Snow showers before 8am, then snow between 8am and 11am, then snow showers after 11am. The snow could be heavy at times. Some thunder is also possible. High near 29. Wind chill values as low as 6. Southwest wind 10 to 15 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Sunday Night

Snow showers likely before 8pm, then snow likely, mainly between 8pm and 11pm. Some thunder is also possible. Mostly cloudy, with a low around 9. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of 3 to 5 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, with a high near 35. Wind chill values as low as 10. Calm wind becoming west southwest around 5 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

Monday Night

Partly cloudy, with a low around 13. West wind around 5 mph becoming calm in the evening. Winds could gust as high as 20 mph.

Tuesday

Sunny, with a high near 42. Calm wind becoming west southwest around 5 mph in the afternoon. Winds could gust as high as 15 mph.

Tuesday Night

Mostly clear, with a low around 18. West southwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 20 mph.

Wednesday

Mostly sunny, with a high near 44. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

Wednesday Night

Mostly cloudy, with a low around 22. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.

Thursday

A 20 percent chance of snow showers after 11am. Some thunder is also possible. Mostly sunny, with a high near 40. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.

Thursday Night

Partly cloudy, with a low around 12. West wind 5 to 10 mph becoming north northeast in the evening. Winds could gust as high as 30 mph.

Friday

Sunny, with a high near 43. North northeast wind around 5 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

Friday Night

Mostly clear, with a low around 18. West southwest wind around 5 mph becoming north after midnight. Winds could gust as high as 20 mph.

Saturday

Sunny, with a high near 49. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.