Montana Severe Extreme Heat Warning | Effective 07/12/2026 14:17

Headline: 
Extreme Heat Warning issued July 12 at 3:17PM MDT until July 13 at 6:00AM MDT by NWS Glasgow MT
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
July 12, 2026 - 2:17pm
Expires: 
July 13, 2026 - 2:30am
Description: 
* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 106. For the High Wind Warning, south winds 25 to 35 with gusts up to 60 mph. For the Lake Wind Advisory, north winds 15 to 20 mph with gusts up to 35 mph expected. * WHERE...McCone County. * WHEN...For the Extreme Heat Warning, until 6 AM MDT Monday. For the High Wind Warning, from 9 PM this evening to 4 AM MDT Monday. For the Lake Wind Advisory, from 9 PM this evening to 6 AM MDT Monday. * IMPACTS...Damaging winds could blow down trees and power lines. Travel could be difficult, especially for high profile vehicles. Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Wave heights as high as 4 feet.
Instruction: 
People are urged to secure loose objects that could be blown around or damaged by the wind. Boaters on Fort Peck Lake should use extra caution since strong winds and rough waves can overturn small craft. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Area Description: 
McCone
Forcast Office: 
NWS Glasgow MT
Sender: 
w-nws.webmaster@noaa.gov