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.

Mostly Cloudy

34°F

1°C

Humidity	80%
Wind Speed	E 5 MPH
Barometer	29.9 in (1012.53 mb)
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Wind Chill	29°F (-2°C)
Last update	11 Apr 02:55 AM PDT

More Information:

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

Extended Forecast for

12 Miles E 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

Overnight
Low: 23 °F
Partly Cloudy
Saturday
High: 56 °F
Sunny
Saturday Night
Low: 21 °F
Snow Showers
Likely
Sunday
High: 44 °F
Snow Showers
then Snow
Showers
Likely
Sunday Night
Low: 16 °F
Chance Snow
Showers
Monday
High: 47 °F
Chance Snow
Showers
Monday Night
Low: 17 °F
Mostly Clear
Tuesday
High: 55 °F
Sunny
Tuesday Night
Low: 22 °F
Mostly Clear

Detailed Forecast

Overnight

Partly cloudy, with a low around 23. Northwest wind around 5 mph.

Saturday

Sunny, with a high near 56. North wind 5 to 10 mph becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

Saturday Night

Snow showers likely, mainly after 11pm. Increasing clouds, with a low around 21. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Sunday

Snow showers. Some thunder is also possible. High near 44. North wind 10 to 15 mph becoming southwest in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Sunday Night

A 40 percent chance of snow showers, mainly before 11pm. Partly cloudy, with a low around 16. Southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 25 mph. Little or no snow accumulation expected.

Monday

A 30 percent chance of snow showers, mainly after 11am. Mostly sunny, with a high near 47. Calm wind becoming northwest around 5 mph in the afternoon. Little or no snow accumulation expected.

Monday Night

Mostly clear, with a low around 17.

Tuesday

Sunny, with a high near 55.

Tuesday Night

Mostly clear, with a low around 22.

Wednesday

Sunny, with a high near 59.

Wednesday Night

Partly cloudy, with a low around 24.

Thursday

Mostly sunny, with a high near 57.