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 in effect from April 11, 02:00 PM PDT until April 12, 11:00 PM PDT

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

Clear

48°F

9°C

Humidity	26%
Wind Speed	N 0 MPH
Barometer	29.92 in (1013.21 mb)
Dewpoint	16°F (-9°C)
Visibility	10.00 mi
Last update	11 Apr 11:35 AM PDT

More Information:

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

Extended Forecast for

8 Miles ESE Mammoth Lakes CA

Winter Storm Warning April 11, 02:00pm until April 12, 11:00pm

Click here for hazard details and duration

Winter Storm Warning

Today
High: 44 °F
Slight Chance
Snow Showers
and Breezy
Tonight
Low: 22 °F
Heavy Snow
and Breezy
Sunday
High: 32 °F
Snow Showers
and Breezy
Sunday Night
Low: 19 °F
Chance Snow
Showers and
Breezy
Monday
High: 37 °F
Chance Snow
Showers
Monday Night
Low: 23 °F
Partly Cloudy
Tuesday
High: 43 °F
Sunny
Tuesday Night
Low: 28 °F
Mostly Clear
Wednesday
High: 48 °F
Sunny

Detailed Forecast

Today

A 20 percent chance of snow showers after 2pm. Mostly sunny, with a high near 44. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 45 mph.

Tonight

Snow, mainly after 8pm. The snow could be heavy at times. Some thunder is also possible. Low around 22. Breezy, with a south wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

Sunday

Snow showers, mainly before 8am. Some thunder is also possible. High near 32. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Sunday Night

A 50 percent chance of snow showers, mainly before 11pm. Partly cloudy, with a low around 19. Breezy, with a southwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 40 mph. New snow accumulation of around an inch possible.

Monday

A 40 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 37. Southwest wind around 5 mph becoming north in the morning. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.

Monday Night

Partly cloudy, with a low around 23. West wind 5 to 10 mph, with gusts as high as 20 mph.

Tuesday

Sunny, with a high near 43.

Tuesday Night

Mostly clear, with a low around 28.

Wednesday

Sunny, with a high near 48.

Wednesday Night

Partly cloudy, with a low around 31.

Thursday

Mostly sunny, with a high near 46.