Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. 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

57°F

14°C

Humidity	47%
Wind Speed	S 3 MPH
Barometer	30.31 in (1026.41 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	11 Aug 11:55 PM PDT

More Information:

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

Extended Forecast for

7 Miles ESE Mammoth Lakes CA

Flood Watch August 12, 02:00pm until August 13, 09:00pm

Click here for hazard details and duration

Flood Watch

Overnight
Low: 48 °F
Partly Cloudy
Wednesday
High: 75 °F
Chance
T-storms then
Showers
Likely
Wednesday Night
Low: 45 °F
Chance
T-storms then
Chance
Showers
Thursday
High: 72 °F
Showers
Likely
Thursday Night
Low: 41 °F
Mostly Clear
Friday
High: 73 °F
Sunny
Friday Night
Low: 41 °F
Mostly Clear
Saturday
High: 75 °F
Sunny
Saturday Night
Low: 42 °F
Mostly Clear

Detailed Forecast

Overnight

Partly cloudy, with a low around 48. Calm wind.

Wednesday

A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 75. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%.

Wednesday Night

A 40 percent chance of showers and thunderstorms, mainly between 2am and 5am. Mostly cloudy, with a low around 45. West wind around 5 mph becoming calm in the evening.

Thursday

A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 72. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

Thursday Night

Mostly clear, with a low around 41. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 25 mph.

Friday

Sunny, with a high near 73. Calm wind becoming southeast around 5 mph in the afternoon.

Friday Night

Mostly clear, with a low around 41.

Saturday

Sunny, with a high near 75.

Saturday Night

Mostly clear, with a low around 42.

Sunday

Sunny, with a high near 76.