* WHAT...Dangerously hot conditions with heat index values from 105 to 110.
* WHERE...Delta and Menominee Counties.
* WHEN...Until 9 PM CDT /10 PM EDT/ Tuesday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
* ADDITIONAL DETAILS...Overnight low temperatures will range from 70 to 75 degrees, limiting recovery from heat.