Heavy Rainfall and Severe Thunderstorms in the Midwest and Ohio Valley Tuesday

Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

63°F

17°C

Humidity	32%
Wind Speed	NW 2 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	11 Aug 02:15 AM MDT

More Information:

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

Extended Forecast for

Mammoth Hot Springs WY

Red Flag Warning August 11, 12:00pm until August 11, 09:00pm

Click here for hazard details and duration

Red Flag Warning

Overnight
Low: 54 °F
Smoke
Tuesday
High: 86 °F
Smoke
Tuesday Night
Low: 55 °F
Smoke
Wednesday
High: 83 °F
Partly Sunny
Wednesday Night
Low: 54 °F
Slight Chance
T-storms then
Mostly Cloudy
Thursday
High: 77 °F
Partly Sunny
then Showers
Likely
Thursday Night
Low: 52 °F
Showers
Friday
High: 71 °F
Showers
Likely then
Showers
Friday Night
Low: 49 °F
Showers then
Slight Chance
Showers

Detailed Forecast

Overnight

Widespread smoke, mainly before 3am. Clear, with a low around 54. Light west wind.

Tuesday

Widespread smoke, mainly between 9am and noon. Sunny, with a high near 86. Light and variable wind becoming west northwest 8 to 13 mph in the afternoon. Winds could gust as high as 24 mph.

Tuesday Night

Widespread smoke, mainly after 9pm. Increasing clouds, with a low around 55. Northwest wind 6 to 11 mph becoming light west in the evening. Winds could gust as high as 21 mph.

Wednesday

Partly sunny, with a high near 83. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

Wednesday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 54. West southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 20%.

Thursday

Showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 77. Light and variable wind becoming west southwest around 5 mph. Chance of precipitation is 70%.

Thursday Night

Showers and possibly a thunderstorm. Low around 52. Light and variable wind. Chance of precipitation is 80%.

Friday

Showers and possibly a thunderstorm. High near 71. Chance of precipitation is 90%.

Friday Night

Showers and possibly a thunderstorm before midnight, then a slight chance of showers. Low around 49. Chance of precipitation is 80%.

Saturday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73. Chance of precipitation is 60%.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 48.

Sunday

A chance of showers and thunderstorms. Mostly sunny, with a high near 78.

Sunday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 49.

Monday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78.