* WHAT...Actual temperatures of 89 to 95 degrees expected. Heat index values between 96 and 102 expected. Overnight temperatures Monday night will struggle to get below 75 degrees. The hottest conditions are expected away from the immediate Lake Michigan shore.
* WHERE...Central Chippewa, Eastern Mackinac, Southeast Chippewa, Western Chippewa, and Western Mackinac Counties, and Mackinac Island/Bois Blanc Island.
* WHEN...From noon today to 8 AM EDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.