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.

Partly Cloudy

37°F

3°C

Humidity	47%
Wind Speed	WSW 8 MPH
Barometer	29.93 in (1013.55 mb)
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Wind Chill	31°F (-1°C)
Last update	11 Apr 06:55 AM PDT

More Information:

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

Extended Forecast for

5 Miles ENE 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: 49 °F
Mostly Sunny
then Slight
Chance Snow
Showers and
Breezy
Tonight
Low: 25 °F
Heavy Snow
Sunday
High: 38 °F
Snow Showers
Sunday Night
Low: 18 °F
Chance Snow
Showers then
Slight Chance
Snow Showers
Monday
High: 43 °F
Chance Snow
Showers
Monday Night
Low: 19 °F
Partly Cloudy
Tuesday
High: 49 °F
Sunny
Tuesday Night
Low: 24 °F
Mostly Clear
Wednesday
High: 53 °F
Sunny

Detailed Forecast

Today

A slight chance of snow showers between 2pm and 5pm. Mostly sunny, with a high near 49. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 20%.

Tonight

Snow showers, mainly after 8pm. The snow could be heavy at times. Some thunder is also possible. Low around 25. Southwest wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Sunday

Snow showers. Some thunder is also possible. High near 38. Southwest wind 10 to 15 mph, with gusts as high as 30 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 18. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than one inch possible.

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

Partly cloudy, with a low around 19. West wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 49.

Tuesday Night

Mostly clear, with a low around 24.

Wednesday

Sunny, with a high near 53.

Wednesday Night

Partly cloudy, with a low around 27.

Thursday

Sunny, with a high near 52.