Extreme Heat Watch: Midland; Bay; Huron; Saginaw; Tuscola; Sanilac; Shiawassee; Genesee; Lapeer; St. Clair; Livingston; Oakland; Macomb; Washtenaw; Wayne; Lenawee; Monroe

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Extreme Heat Watch — Midland; Bay; Huron; Saginaw; Tuscola; Sanilac; Shiawassee; Genesee; Lapeer; St. Clair; Livingston; Oakland; Macomb; Washtenaw; Wayne; Lenawee; Monroe Severity: Severe. Certainty: Likely. * WHAT...Dangerously hot conditions with heat index values exceeding 105 degrees. * WHERE...A portion of southeast Michigan. * WHEN...From Tuesday afternoon through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Extended period of hot and humid conditions expected Tuesday through at least Thursday. High temperatures reaching the mid 90s to near 100 degrees. This will lead to heat index values of 105 degrees or greater each day. Little relief overnight with low temperatures each night in the low to mid 70s.