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

6 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: 61 °F
Mostly Sunny
Tonight
Low: 31 °F
Partly Cloudy
Monday
High: 62 °F
Mostly Sunny
then Sunny
and Breezy
Monday Night
Low: 32 °F
Mostly Clear
and Breezy
then Mostly
Clear
Tuesday
High: 51 °F
Rain/Snow and
Breezy
Tuesday Night
Low: 22 °F
Rain/Snow and
Breezy then
Snow Showers
Likely
Wednesday
High: 44 °F
Chance Snow
Showers
Wednesday Night
Low: 20 °F
Mostly Clear
Thursday
High: 52 °F
Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 61. East wind 5 to 10 mph becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

Tonight

Partly cloudy, with a low around 31. Southwest wind 10 to 15 mph becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

Monday

Sunny, with a high near 62. Breezy, with a west wind 5 to 10 mph becoming south 15 to 20 mph in the morning. Winds could gust as high as 35 mph.

Monday Night

Mostly clear, with a low around 32. Breezy, with a southwest wind 15 to 20 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 35 mph.

Tuesday

A slight chance of rain and snow showers before 11am, then rain showers between 11am and 2pm, then rain and snow showers after 2pm. Snow level 7700 feet. High near 51. Breezy, with a southwest wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 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. 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. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Wednesday

A 40 percent chance of snow showers. Partly sunny, with a high near 44. Little or no snow accumulation expected.

Wednesday Night

Mostly clear, with a low around 20.

Thursday

Sunny, with a high near 52.

Thursday Night

Mostly clear, with a low around 24.

Friday

Sunny, with a high near 54.

Friday Night

Partly cloudy, with a low around 27.