Extreme Heat Warning

* WHAT...Dangerously hot conditions with heat index values up to 107 expected. Early morning heat indices will remain around 80 degrees, which will still be hazardous for anyone without shelter before the extreme heat in the afternoon.

* WHERE...Marathon, Portage, Waushara, Wood, Calumet, Winnebago, Brown, Outagamie, Shawano, and Waupaca Counties.

* WHEN...Until 7 PM CDT this evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.