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.

Clear

46°F

8°C

Humidity	87%
Wind Speed	N 0 MPH
Barometer	30.17 in (1021.67 mb)
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Last update	13 Aug 01:55 AM PDT

More Information:

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

Extended Forecast for

9 Miles SE 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
Overnight
Low: 38 °F
Slight Chance
T-storms
Thursday
High: 56 °F
Showers
Likely and
Breezy
Thursday Night
Low: 35 °F
Slight Chance
T-storms and
Breezy then
Mostly Clear
Friday
High: 57 °F
Sunny
Friday Night
Low: 35 °F
Mostly Clear
Saturday
High: 58 °F
Sunny
Saturday Night
Low: 36 °F
Mostly Clear
Sunday
High: 60 °F
Sunny

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Snow level 13000 feet. Partly cloudy, with a low around 38. Southwest wind around 10 mph, with gusts as high as 20 mph.

Thursday

Showers and thunderstorms likely, mainly before 2pm. Snow level 12800 feet. Partly sunny, with a high near 56. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

Thursday Night

A 20 percent chance of showers and thunderstorms before 8pm. Snow level 12400 feet lowering to 11200 feet after midnight . Mostly clear, with a low around 35. Breezy, with a south wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

Friday

Sunny, with a high near 57. South wind 10 to 15 mph.

Friday Night

Mostly clear, with a low around 35. Southwest wind 10 to 15 mph.

Saturday

Sunny, with a high near 58. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Saturday Night

Mostly clear, with a low around 36.

Sunday

Sunny, with a high near 60.

Sunday Night

Partly cloudy, with a low around 38.