* WHAT...Dangerously hot conditions with heat index values up to 105 possible.
* WHERE...Portions of northwest and west central Minnesota and northeast and southeast North Dakota.
* WHEN...From Sunday morning through late Monday night.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
* ADDITIONAL DETAILS...Isolated heat impacts could start as early as Saturday afternoon, with widespread heat impacts expected Sunday and Monday afternoon.