Heat Advisory issued for parts of Metro Detroit Thursday, with threat of storms later in the day

Thursday's high heat could impact the start of high school football season across Michigan.
Kid cooling of by pouring water on his head
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(WWJ) – A stormy Wednesday in Metro Detroit is set to be followed by what could be “the hottest day of the summer” on Thursday, and the National Weather Service is putting out a warning.

The NWS has issued a Heat Advisory from 8 a.m. to 8 p.m. Thursday for Wayne, Washtenaw, Lenawee and Monroe Counties. Temperatures are expected to climb into the 90s by midday, with heat indexes likely exceeding 100 degrees for much of the afternoon and evening.

Parts of other counties, particularly along the M-59 corridor in Oakland and Macomb Counties, could see heat indexes briefly hit triple digits, according to the NWS.

Officials say heat and humidity could present “hazardous conditions” for those engaged in outdoor activity or to those that do not have access to air conditioning. The NWS says people should reduce outdoor activity, drink plenty of water and wear lightweight, light colored clothing.

That, combined with a threat of thunderstorms later in the day, could be a problem Thursday evening as high school football season kicks off across the state.

“We’ll have to watch for some thunderstorms to develop late tomorrow and perhaps late into tomorrow evening,” AccuWeather meteorologist Brian Thompson said on Weather Wednesday. “A lot of the day will be dry, but perhaps as we get toward football time, there could be the potential for some heavy, gusty thunderstorms.”

WWJ Sports Anchor Chris Fillar reports the MHSAA says individual schools make decisions to move start times or to postpone games. The MHSAA’s postseason policies, which some schools have adopted for the regular season, would cease activity if heat indexes hit 104 degrees.

With heat and humidity, Thompson says any storms could be locally strong, which could also impact games across the area.

Thompson says skies are expected to clear by Thursday morning after another round of storms Wednesday evening, which he says will help temperatures rise.

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