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

36°F

2°C

Humidity	86%
Wind Speed	N 0 MPH
Barometer	29.91 in (1012.87 mb)
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Last update	11 Apr 12:15 AM PDT

More Information:

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

Extended Forecast for

9 Miles SE 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: 17 °F
Chance Snow
Showers and
Windy
Saturday
High: 34 °F
Windy. Mostly
Sunny then
Slight Chance
Snow Showers
Saturday Night
Low: 14 °F
Heavy Snow
and Very
Windy
Sunday
High: 23 °F
Heavy Snow
and Very
Windy
Sunday Night
Low: 9 °F
Snow Showers
Likely and
Windy
Monday
High: 28 °F
Chance Snow
Showers
Monday Night
Low: 11 °F
Partly Cloudy
Tuesday
High: 34 °F
Sunny
Tuesday Night
Low: 17 °F
Mostly Clear

Detailed Forecast

Overnight

A 30 percent chance of snow showers before 2am. Partly cloudy, with a low around 17. Windy, with a southwest wind around 30 mph, with gusts as high as 45 mph. Total nighttime snow accumulation of 1 to 3 inches possible.

Saturday

A slight chance of snow showers between 2pm and 5pm. Mostly sunny, with a high near 34. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 20%.

Saturday Night

Snow showers, mainly after 8pm. The snow could be heavy at times. Some thunder is also possible. Low around 14. Very windy, with a south wind 30 to 35 mph increasing to 40 to 45 mph in the evening. Winds could gust as high as 65 mph. Chance of precipitation is 80%. New snow accumulation of 8 to 12 inches possible.

Sunday

Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 23. Very windy, with a southwest wind 30 to 40 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Sunday Night

Snow showers likely, mainly before 11pm. Mostly cloudy, with a low around 9. Windy, with a southwest wind 25 to 30 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

Monday

A 40 percent chance of snow showers, mainly after 11am. Mostly sunny, with a high near 28. Southwest wind 10 to 15 mph. New snow accumulation of less than one inch possible.

Monday Night

Partly cloudy, with a low around 11.

Tuesday

Sunny, with a high near 34.

Tuesday Night

Mostly clear, with a low around 17.

Wednesday

Sunny, with a high near 38.

Wednesday Night

Partly cloudy, with a low around 20.

Thursday

Mostly sunny, with a high near 37.