Heat Advisory: Cheboygan; Presque Isle; Montmorency; Alpena; Oscoda; Alcona; Ogemaw; Iosco; Gladwin; Arenac

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Heat Advisory — Cheboygan; Presque Isle; Montmorency; Alpena; Oscoda; Alcona; Ogemaw; Iosco; Gladwin; Arenac Severity: Moderate. Certainty: Likely. * WHAT...Heat index values up to 105 expected. * WHERE...Alcona, Alpena, Arenac, Cheboygan, Gladwin, Iosco, Montmorency, Ogemaw, Oscoda, and Presque Isle Counties. * WHEN...From noon today to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat index values will locally exceed 105 degrees this afternoon. Although mid-week temperatures are dependent on thunderstorm development, prolonged high humidity and limited overnight cooling will lead to compounding heat stress throughout the week.