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.

Overcast

34°F

1°C

Humidity	86%
Wind Speed	SE 4 MPH
Barometer	29.9 in (1012.53 mb)
Dewpoint	30°F (-1°C)
Visibility	10.00 mi
Wind Chill	30°F (-1°C)
Last update	11 Apr 03:35 AM PDT

More Information:

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

Extended Forecast for

10 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

Overnight
Low: 24 °F
Mostly Clear
and Windy
Saturday
High: 43 °F
Mostly Sunny
and Breezy
Saturday Night
Low: 21 °F
Heavy Snow
and Very
Windy
Sunday
High: 33 °F
Snow Showers
and Very
Windy
Sunday Night
Low: 16 °F
Breezy.
Chance Snow
Showers then
Slight Chance
Snow Showers
Monday
High: 37 °F
Chance Snow
Showers
Monday Night
Low: 18 °F
Partly Cloudy
Tuesday
High: 43 °F
Sunny
Tuesday Night
Low: 24 °F
Mostly Clear

Detailed Forecast

Overnight

Mostly clear, with a low around 24. Windy, with a southwest wind around 30 mph, with gusts as high as 40 mph.

Saturday

Mostly sunny, with a high near 43. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph.

Saturday Night

Snow showers, mainly after 8pm. The snow could be heavy at times. Low around 21. Very windy, with a southwest wind 30 to 35 mph increasing to 35 to 40 mph in the evening. Winds could gust as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.

Sunday

Snow showers. Some thunder is also possible. High near 33. Very windy, with a southwest wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Sunday Night

A 50 percent chance of snow showers, mainly before 11pm. Mostly cloudy, with a low around 16. Breezy, with a southwest wind 20 to 25 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 40 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 37. West wind 10 to 15 mph. Little or no snow accumulation expected.

Monday Night

Partly cloudy, with a low around 18.

Tuesday

Sunny, with a high near 43.

Tuesday Night

Mostly clear, with a low around 24.

Wednesday

Sunny, with a high near 48.

Wednesday Night

Partly cloudy, with a low around 26.

Thursday

Mostly sunny, with a high near 46.