Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Hazardous Weather Conditions

Winter Storm Watch in effect from January 2, 04:00 PM PST until January 4, 10:00 AM PST

Current conditions at

Top of 22 (MTH02)

Lat: 37.63707°NLon: 119.0174°WElev: 10100.0ft.

43°F

6°C

Humidity	17%
Wind Speed	SSW 0 MPH
Barometer	NA
Dewpoint	2°F (-17°C)
Visibility	NA
Last update	30 Dec 02:25 PM PST

More Information:

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

Extended Forecast for

4 Miles NW Mammoth Lakes CA

Winter Storm Watch January 2, 04:00pm until January 4, 10:00am

Click here for hazard details and duration

Winter Storm Watch

This Afternoon
High: 39 °F
Mostly Cloudy
Tonight
Low: 17 °F
Mostly Cloudy
Wednesday
High: 38 °F
Snow Likely
then
Rain/Snow
Wednesday Night
Low: 29 °F
Rain/Snow
New Year's Day
High: 40 °F
Rain/Snow
Thursday Night
Low: 26 °F
Chance
Rain/Snow
then Slight
Chance Snow
Friday
High: 39 °F
Chance Snow
Friday Night
Low: 25 °F
Heavy Snow
Saturday
High: 35 °F
Heavy Snow

Detailed Forecast

This Afternoon

Mostly cloudy, with a high near 39. Calm wind.

Tonight

Mostly cloudy, with a low around 17. Calm wind.

Wednesday

Snow likely before 1pm, then rain and snow. High near 38. Calm wind. Chance of precipitation is 80%. Little or no snow accumulation expected.

Wednesday Night

Rain and snow, becoming all snow after 3am. Snow level 8800 feet. Low around 29. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

New Year's Day

Rain and snow, mainly before 4pm. Snow level 8900 feet. High near 40. South wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 26. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Friday

A 30 percent chance of snow, mainly after 10am. Partly sunny, with a high near 39. New snow accumulation of less than one inch possible.

Friday Night

Snow, mainly after 10pm. The snow could be heavy at times. Mostly cloudy, with a low around 25.

Saturday

Snow. The snow could be heavy at times. Mostly cloudy, with a high near 35.

Saturday Night

Snow likely. Mostly cloudy, with a low around 20.

Sunday

Snow likely. Mostly cloudy, with a high near 34.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 17.