Pacific Storm System Across the West; Fire Weather Concerns in the Southeast

A Pacific storm system will bring strong winds and low elevation rain to much of the West Coast, and heavy high elevation mountain snow to the Sierra-Nevada through Wednesday. Fire weather concerns will continue into Tuesday across the Mid-South and Southeast as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Winter Weather Advisory 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.

Partly Cloudy

50°F

10°C

Humidity	27%
Wind Speed	S 9 MPH
Barometer	29.96 in (1014.56 mb)
Dewpoint	17°F (-8°C)
Visibility	10.00 mi
Wind Chill	46°F (8°C)
Last update	21 Apr 01:55 AM PDT

More Information:

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

Extended Forecast for

8 Miles ESE Mammoth Lakes CA

Winter Weather Advisory April 21, 05:00am until April 22, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 30 °F
Partly Cloudy
Tuesday
High: 53 °F
Breezy.
Showers
Likely then
Rain/Snow
Tuesday Night
Low: 18 °F
Snow Showers
and Breezy
then Chance
Snow Showers
Wednesday
High: 46 °F
Slight Chance
Snow Showers
Wednesday Night
Low: 19 °F
Mostly Clear
Thursday
High: 55 °F
Sunny
Thursday Night
Low: 25 °F
Partly Cloudy
Friday
High: 57 °F
Mostly Sunny
Friday Night
Low: 27 °F
Partly Cloudy

Detailed Forecast

Overnight

Partly cloudy, with a low around 30. West wind around 5 mph.

Tuesday

Rain showers likely between 8am and 2pm, then rain and snow showers. Some thunder is also possible. Snow level 8300 feet lowering to 7500 feet in the afternoon . High near 53. Breezy, with a southeast wind 15 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Tuesday Night

Snow showers, mainly before 11pm. Some thunder is also possible. Low around 18. Breezy, with a west wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Wednesday

A 20 percent chance of snow showers. Mostly sunny, with a high near 46. West wind 5 to 10 mph.

Wednesday Night

Mostly clear, with a low around 19. West wind 5 to 10 mph becoming light in the evening.

Thursday

Sunny, with a high near 55. Calm wind becoming northwest around 5 mph.

Thursday Night

Partly cloudy, with a low around 25.

Friday

Mostly sunny, with a high near 57.

Friday Night

Partly cloudy, with a low around 27.