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.

light rain,haze

43°F

6°C

Humidity	70%
Wind Speed	SSW 20 MPH
Barometer	29.9 in (1012.53 mb)
Dewpoint	34°F (1°C)
Visibility	3.00 mi
Wind Chill	34°F (1°C)
Last update	10 Apr 04:15 PM 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

This Afternoon
High: 58 °F
Chance
Rain/Snow
Tonight
Low: 25 °F
Chance
Rain/Snow
Saturday
High: 54 °F
Sunny then
Slight Chance
Showers
Saturday Night
Low: 23 °F
Snow Showers
Likely
Sunday
High: 41 °F
Snow Showers
Sunday Night
Low: 17 °F
Chance Snow
Showers
Monday
High: 45 °F
Chance Snow
Showers
Monday Night
Low: 19 °F
Partly Cloudy
Tuesday
High: 52 °F
Sunny

Detailed Forecast

This Afternoon

A chance of rain showers before 5pm, then a chance of rain and snow showers. Some thunder is also possible. Snow level 8300 feet. Partly sunny, with a high near 58. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Tonight

A chance of rain and snow showers, mainly before 11pm. Some thunder is also possible. Snow level 8000 feet lowering to 6900 feet after midnight . Partly cloudy, with a low around 25. Southwest wind 5 to 15 mph becoming west in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Saturday

A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 54. West wind 5 to 15 mph becoming southeast in the morning. Winds could gust as high as 30 mph.

Saturday Night

Snow showers likely, mainly after 11pm. Increasing clouds, with a low around 23. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Sunday

Snow showers. Some thunder is also possible. High near 41. Southwest wind 5 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 40 percent chance of snow showers, mainly before 11pm. Mostly cloudy, with a low around 17. Southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 20 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 45. Little or no snow accumulation expected.

Monday Night

Partly cloudy, with a low around 19.

Tuesday

Sunny, with a high near 52.

Tuesday Night

Mostly clear, with a low around 24.

Wednesday

Sunny, with a high near 56.

Wednesday Night

Partly cloudy, with a low around 27.