Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Hazardous Weather Conditions

Flood Watch in effect from August 12, 02:00 PM PDT until August 13, 09:00 PM PDT

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

Overcast

59°F

15°C

Humidity	67%
Wind Speed	NW 10 MPH
Barometer	30.21 in (1023.03 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	12 Aug 08:55 PM PDT

More Information:

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

Extended Forecast for

10 Miles ESE Mammoth Lakes CA

Flood Watch until August 13, 09:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch until August 13, 09:00pm
NOW until 9:00pm Thu
Flood Watch
Tonight
Low: 42 °F
Mostly Cloudy
Thursday
High: 60 °F
Showers
Likely and
Breezy
Thursday Night
Low: 39 °F
Slight Chance
T-storms and
Breezy then
Mostly Clear
Friday
High: 62 °F
Sunny
Friday Night
Low: 39 °F
Mostly Clear
Saturday
High: 63 °F
Sunny
Saturday Night
Low: 40 °F
Mostly Clear
Sunday
High: 64 °F
Sunny

Detailed Forecast

Tonight

Mostly cloudy, with a low around 42. Southwest wind around 10 mph.

Thursday

A slight chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 5pm, then a slight chance of showers and thunderstorms after 5pm. Snow level 12800 feet. Mostly cloudy, then gradually becoming sunny, with a high near 60. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

Thursday Night

A 20 percent chance of showers and thunderstorms before 8pm. Snow level 12500 feet lowering to 11400 feet after midnight . Mostly clear, with a low around 39. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

Friday

Sunny, with a high near 62. South wind 10 to 15 mph.

Friday Night

Mostly clear, with a low around 39. Southwest wind 10 to 15 mph.

Saturday

Sunny, with a high near 63. Southwest wind 5 to 15 mph becoming southeast in the morning. Winds could gust as high as 25 mph.

Saturday Night

Mostly clear, with a low around 40.

Sunday

Sunny, with a high near 64.

Sunday Night

Partly cloudy, with a low around 41.