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	29%
Wind Speed	ESE 9 MPH
Barometer	29.94 in (1013.89 mb)
Dewpoint	17°F (-8°C)
Visibility	10.00 mi
Wind Chill	44°F (7°C)
Last update	11 Apr 10:55 AM PDT

More Information:

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

Extended Forecast for

9 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

Today
High: 51 °F
Slight Chance
Rain/Snow
Tonight
Low: 22 °F
Snow Showers
Sunday
High: 40 °F
Snow Showers
Sunday Night
Low: 16 °F
Chance Snow
Showers then
Slight Chance
Snow Showers
Monday
High: 43 °F
Chance Snow
Showers
Monday Night
Low: 18 °F
Mostly Clear
Tuesday
High: 50 °F
Sunny
Tuesday Night
Low: 23 °F
Mostly Clear
Wednesday
High: 55 °F
Sunny

Detailed Forecast

Today

A slight chance of rain and snow showers between 2pm and 5pm, then a slight chance of rain showers after 5pm. Snow level 7400 feet. Sunny, with a high near 51. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

Tonight

Snow showers, mainly after 8pm. Low around 22. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Sunday

Snow showers. Some thunder is also possible. High near 40. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Sunday Night

A 50 percent chance of snow showers, mainly before 11pm. Mostly cloudy, with a low around 16. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Little or no snow accumulation expected.

Monday

A 40 percent chance of snow showers, mainly after 11am. Mostly sunny, with a high near 43. Calm wind becoming northwest around 5 mph in the afternoon. Little or no snow accumulation expected.

Monday Night

Mostly clear, with a low around 18. West wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 50.

Tuesday Night

Mostly clear, with a low around 23.

Wednesday

Sunny, with a high near 55.

Wednesday Night

Partly cloudy, with a low around 25.

Thursday

Sunny, with a high near 54.