Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Hazardous Weather Conditions

Winter Storm Watch in effect from April 21, 05:00 AM PDT until April 22, 05:00 PM PDT

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

Clear

52°F

11°C

Humidity	15%
Wind Speed	N 0 MPH
Barometer	30.08 in (1018.63 mb)
Dewpoint	7°F (-14°C)
Visibility	10.00 mi
Last update	19 Apr 10:35 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 Watch April 21, 05:00am until April 22, 05:00pm

Click here for hazard details and duration

Winter Storm Watch

Today
High: 63 °F
Mostly Sunny
Tonight
Low: 32 °F
Partly Cloudy
Monday
High: 64 °F
Sunny
Monday Night
Low: 32 °F
Mostly Clear
Tuesday
High: 54 °F
Breezy.
Rain/Snow
Likely then
Showers
Tuesday Night
Low: 22 °F
Rain/Snow
then Chance
Snow Showers
Wednesday
High: 47 °F
Chance Snow
Showers
Wednesday Night
Low: 22 °F
Mostly Clear
Thursday
High: 56 °F
Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 63. South wind 5 to 10 mph, with gusts as high as 25 mph.

Tonight

Partly cloudy, with a low around 32. South wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.

Monday

Sunny, with a high near 64. Light and variable wind becoming south 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

Monday Night

Mostly clear, with a low around 32. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.

Tuesday

A slight chance of rain and snow showers before 8am, then rain showers. Snow level 7800 feet. High near 54. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Tuesday Night

Rain and snow showers, becoming all snow after 8pm. Some thunder is also possible. Low around 22. Southwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Wednesday

A 40 percent chance of snow showers. Partly sunny, with a high near 47. Little or no snow accumulation expected.

Wednesday Night

Mostly clear, with a low around 22.

Thursday

Sunny, with a high near 56.

Thursday Night

Mostly clear, with a low around 27.

Friday

Sunny, with a high near 57.

Friday Night

Partly cloudy, with a low around 29.