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

48°F

9°C

Humidity	26%
Wind Speed	S 13 MPH
Barometer	29.99 in (1015.58 mb)
Dewpoint	16°F (-9°C)
Visibility	10.00 mi
Wind Chill	43°F (6°C)
Last update	21 Apr 12:55 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: 34 °F
Mostly Clear
Tuesday
High: 44 °F
Rain/Snow and
Breezy
Tuesday Night
Low: 20 °F
Breezy. Heavy
Snow then
Chance Snow
Showers
Wednesday
High: 38 °F
Slight Chance
Snow Showers
Wednesday Night
Low: 23 °F
Mostly Clear
Thursday
High: 48 °F
Sunny
Thursday Night
Low: 30 °F
Partly Cloudy
Friday
High: 49 °F
Mostly Sunny
Friday Night
Low: 31 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 34. South wind around 15 mph, with gusts as high as 30 mph.

Tuesday

A chance of snow showers before 11am, then rain and snow showers likely between 11am and 2pm, then snow showers after 2pm. The snow could be heavy at times. Some thunder is also possible. High near 44. Breezy, with a south wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Tuesday Night

Snow showers, mainly before 11pm. The snow could be heavy at times. Some thunder is also possible. Low around 20. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

Wednesday

A 20 percent chance of snow showers. Mostly sunny, with a high near 38. West wind around 10 mph, with gusts as high as 30 mph.

Wednesday Night

Mostly clear, with a low around 23. West wind 5 to 15 mph, with gusts as high as 25 mph.

Thursday

Sunny, with a high near 48. Calm wind becoming west around 5 mph in the afternoon.

Thursday Night

Partly cloudy, with a low around 30.

Friday

Mostly sunny, with a high near 49.

Friday Night

Partly cloudy, with a low around 31.