Extreme Heat Watch issued June 18 at 11:45PM CDT until June 22 at 9:00PM CDT by NWS Aberdeen SD

* WHAT…Dangerously hot conditions with heat index values from 100
to 105 possible.

* WHERE…In Minnesota, Big Stone and Traverse Counties. In South
Dakota, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, and
Roberts Counties.

* WHEN…From Saturday afternoon through Sunday evening.

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