Yet Another Atmospheric River in the Southwest; Snow and Blowing snow in the Upper Midwest

Heavy rain combined with rising snow levels and saturated soils may produce flooding and flash floods, including across Los Angeles and San Diego. Locally heavy rain may cause flooding into central California and central Arizona. Heavy snow will extend from California to the Rockies. A winter storm will produce hazardous travel in the Upper Midwest. Read More >

Hazardous Weather Conditions

Winter Storm Warning in effect from March 21, 05:00 AM PDT until March 22, 05:00 AM PDT

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Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112ft.

Clear

29°F

-2°C

Humidity	63%
Wind Speed	ESE 5 MPH
Barometer	29.78 in (1008.47 mb)
Dewpoint	18°F (-8°C)
Visibility	10.00 mi
Wind Chill	24°F (-4°C)
Last update	20 Mar 09:55 PM PDT

More Information:

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

Extended Forecast for

9 Miles ESE Mammoth Lakes CA

Winter Storm Warning March 21, 05:00am until March 22, 05:00am

Click here for hazard details and duration

Winter Storm Warning

Tonight

Cloudy then
Heavy Snow
Low: 15 °F
Tuesday

Heavy Snow
and Windy
High: 28 °F
Tuesday
Night

Snow Showers
Likely and
Windy then
Chance Snow
Showers
Low: 9 °F
Wednesday

Snow Showers
Likely and
Breezy
High: 26 °F
Wednesday
Night

Slight Chance
Snow Showers
then Mostly
Cloudy
Low: 7 °F
Thursday

Mostly Sunny
High: 29 °F
Thursday
Night

Partly Cloudy
Low: 8 °F
Friday

Sunny
High: 28 °F
Friday
Night

Mostly Cloudy
Low: 5 °F

Detailed Forecast

Tonight

Snow showers likely, mainly after 5am. The snow could be heavy at times. Cloudy, with a low around 15. South wind around 5 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

Tuesday

Snow showers. The snow could be heavy at times. High near 28. Windy, with an east wind 5 to 10 mph becoming south 25 to 35 mph in the morning. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Tuesday Night

Snow showers likely, mainly before 11pm. Mostly cloudy, with a low around 9. Windy, with a southwest wind 25 to 30 mph decreasing to 15 to 20 mph in the evening. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Wednesday

Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 26. Breezy, with a southwest wind 20 to 25 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Wednesday Night

A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 7. Southwest wind around 10 mph.

Thursday

Mostly sunny, with a high near 29. West wind 10 to 15 mph.

Thursday Night

Partly cloudy, with a low around 8.

Friday

Sunny, with a high near 28.

Friday Night

Mostly cloudy, with a low around 5.

Saturday

A chance of snow showers after 11am. Partly sunny, with a high near 22.