Detroit, Michigan – Temperatures across southeast Michigan are climbing fast Thursday, with heat index values expected to reach 102° by mid-afternoon — triggering a heat advisory until 8 p.m. tonight.
According to the National Weather Service in Detroit/Pontiac, the advisory covers 17 counties, including Wayne, Oakland, Genesee, Saginaw, and Washtenaw. The combination of high humidity and soaring temps will increase the risk of heat-related illnesses, especially for children, the elderly, and outdoor workers.
Cities like Detroit, Flint, and Ann Arbor will experience peak heat from 2 to 5 p.m. Emergency officials urge residents to stay indoors in air conditioning, hydrate frequently, and check on vulnerable neighbors. Cooling centers are operating across several counties; residents can contact 2-1-1 or local emergency management for locations.
Workers should avoid midday shifts if possible. OSHA recommends shaded breaks and plenty of water. Even short exposure in unventilated vehicles can be fatal — never leave kids or pets inside.
Temperatures are expected to drop slightly by nightfall, but more alerts could follow if the heat lingers into Friday.