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

48°F

9°C

Humidity	19%
Wind Speed	N 0 MPH
Barometer	30.08 in (1018.63 mb)
Dewpoint	8°F (-13°C)
Visibility	10.00 mi
Last update	19 Apr 09:15 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 Watch April 21, 05:00am until April 22, 05:00pm

Click here for hazard details and duration

Winter Storm Watch

Today
High: 44 °F
Mostly Sunny
then Mostly
Sunny and
Breezy
Tonight
Low: 25 °F
Partly Cloudy
and Breezy
Monday
High: 45 °F
Sunny and
Windy
Monday Night
Low: 25 °F
Mostly Clear
and Windy
Tuesday
High: 35 °F
Heavy Snow
and Very
Windy
Tuesday Night
Low: 13 °F
Very Windy.
Heavy Snow
then Snow
Showers
Likely
Wednesday
High: 29 °F
Chance Snow
Showers and
Windy
Wednesday Night
Low: 13 °F
Partly Cloudy
and Breezy
then Mostly
Clear
Thursday
High: 38 °F
Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 44. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

Tonight

Partly cloudy, with a low around 25. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.

Monday

Sunny, with a high near 45. Windy, with a south wind 20 to 30 mph, with gusts as high as 45 mph.

Monday Night

Mostly clear, with a low around 25. Windy, with a southwest wind 30 to 35 mph, with gusts as high as 50 mph.

Tuesday

Snow showers, mainly after 11am. The snow could be heavy at times. High near 35. Very windy, with a southwest wind 35 to 45 mph, with gusts as high as 65 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

Tuesday Night

Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 13. Very windy, with a southwest wind 35 to 40 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Wednesday

A 50 percent chance of snow showers. Partly sunny, with a high near 29. Windy. Little or no snow accumulation expected.

Wednesday Night

Mostly clear, with a low around 13. Breezy.

Thursday

Sunny, with a high near 38.

Thursday Night

Mostly clear, with a low around 18.

Friday

Sunny, with a high near 40.

Friday Night

Partly cloudy, with a low around 21.