Extreme Heat Warning: Dunn; Mercer; Oliver; Golden Valley; Billings; Stark; Burleigh; Kidder; Stutsman; Slope; Hettinger; Grant; Bowman; Adams; Emmons; Logan; La Moure; McIntosh; Dickey; Western Morton; Eastern Morton; Western Sioux; Eastern Sioux

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Extreme Heat Warning — Dunn; Mercer; Oliver; Golden Valley; Billings; Stark; Burleigh; Kidder; Stutsman; Slope; Hettinger; Grant; Bowman; Adams; Emmons; Logan; La Moure; McIntosh; Dickey; Western Morton; Eastern Morton; Western Sioux; Eastern Sioux Severity: Severe. Certainty: Likely. * WHAT...Dangerously hot conditions with high temperatures and heat index values as high as 105 degrees. * WHERE...Southwest and south central North Dakota, including the James River Valley. * WHEN...Until 10 PM CDT /9 PM MDT/ Tuesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Low temperatures will only fall to around 70 degrees tonight, providing little relief from the heat.