240 WWUS73 KGRR 281726 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 126 PM EDT Sun Jun 28 2026 MIZ037>040-043>046-050>052-056>059-064>067-071>074-290130- /O.UPG.KGRR.XH.A.0001.260629T1800Z-260703T0000Z/ /O.NEW.KGRR.XH.W.0001.260629T1800Z-260703T0000Z/ Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon- Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of South Haven, Grand Haven, Muskegon, Mount Pleasant, Clare, St. Johns, Charlotte, Jenison, Battle Creek, Hastings, Grand Rapids, Lansing, Ludington, Alma, Ionia, Jackson, Holland, Fremont, Kalamazoo, Baldwin, Hart, Reed City, Big Rapids, and Greenville 126 PM EDT Sun Jun 28 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 2 PM MONDAY TO 8 PM EDT THURSDAY... * WHAT...Dangerously hot conditions with heat index values up to 105 expected. * WHERE...Portions of central, south central, southwest, and west central Michigan. * WHEN...From 2 PM Monday to 8 PM EDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ 04