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

Top of 22 - 10,067ft (MTH02)

Lat: 37.63707°NLon: 119.0174°WElev: 10100.0ft.

16°F

-9°C

Humidity	92%
Wind Speed	SSW 34 MPH
Barometer	NA
Dewpoint	14°F (-10°C)
Visibility	NA
Wind Chill	-5°F (-21°C)
Last update	12 Apr 04:40 AM PDT

More Information:

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

Extended Forecast for

2 Miles NW Mammoth Lakes CA

Winter Storm Warning until April 12, 11:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning until April 12, 11:00pm
NOW until 11:00pm Sun
Winter Storm Warning
Overnight
Low: 22 °F
Heavy Snow
and Breezy
Sunday
High: 32 °F
Heavy Snow
and Breezy
Sunday Night
Low: 16 °F
Heavy Snow
then Slight
Chance Snow
Showers
Monday
High: 37 °F
Snow Showers
Likely
Monday Night
Low: 19 °F
Partly Cloudy
Tuesday
High: 44 °F
Sunny
Tuesday Night
Low: 25 °F
Mostly Clear
Wednesday
High: 46 °F
Mostly Sunny

Detailed Forecast

Overnight

Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 22. Breezy, with a southwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 9 to 13 inches possible.

Sunday

Snow showers, mainly before 5pm. The snow could be heavy at times. Some thunder is also possible. High near 32. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.

Sunday Night

A 50 percent chance of snow showers, mainly before 11pm. The snow could be heavy at times. Partly cloudy, with a low around 16. Southwest wind 5 to 10 mph, with gusts as high as 35 mph. New snow accumulation of 2 to 4 inches possible.

Monday

Snow showers likely, mainly after 11am. Some thunder is also possible. Partly sunny, with a high near 37. Calm wind becoming west around 5 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Monday Night

Partly cloudy, with a low around 19. West wind around 5 mph becoming calm in the evening. Winds could gust as high as 20 mph.

Tuesday

Sunny, with a high near 44. Calm wind becoming southwest around 5 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 25.

Wednesday

Mostly sunny, with a high near 46.

Wednesday Night

Mostly cloudy, with a low around 27.

Thursday

A slight chance of snow showers after 11am. Mostly sunny, with a high near 43.