* WHAT...Dangerously hot conditions with high temperatures and heat index values around 100 to 110 degrees.
* WHERE...All of western and central North Dakota including the James River Valley.
* WHEN...Until 10 PM CDT /9 PM MDT/ Tuesday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
* ADDITIONAL DETAILS...Low temperatures will only fall into the 70s tonight, providing little relief from the heat.