Extreme Heat Warning: Douglas; Todd; Morrison; Mille Lacs; Kanabec; Stevens; Pope; Stearns; Benton; Sherburne; Isanti; Chisago; Lac Qui Parle; Swift; Chippewa; Kandiyohi; Meeker; Wright; Yellow Medicine; Renville; McLeod; Sibley; Redwood; Brown; Nicollet; Le Sueur; Rice; Goodhue; Watonwan; Blue Earth; Polk; Barron; Rusk; St. Croix; Pierce; Dunn; Pepin; Chippewa; Eau Claire

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Extreme Heat Warning — Douglas; Todd; Morrison; Mille Lacs; Kanabec; Stevens; Pope; Stearns; Benton; Sherburne; Isanti; Chisago; Lac Qui Parle; Swift; Chippewa; Kandiyohi; Meeker; Wright; Yellow Medicine; Renville; McLeod; Sibley; Redwood; Brown; Nicollet; Le Sueur; Rice; Goodhue; Watonwan; Blue Earth; Polk; Barron; Rusk; St. Croix; Pierce; Dunn; Pepin; Chippewa; Eau Claire Severity: Severe. Certainty: Likely. * WHAT...Heat index values up to 100. Overnight temperatures remaining warm in the lower 70s. * WHERE...Portions of central, east central, south central, southeast, southwest, and west central Minnesota and northwest and west central Wisconsin. * WHEN...Until 9 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Prolonged heat waves lead to cumulative heat stress for those who cannot adequately cool down and recover each night. Cumulative heat stress significantly increases the risk of heat exhaustion and heat stroke as time goes on.