Heat Advisory: Harper; Ellis; Woodward; Roger Mills; Dewey; Custer; Blaine; Beckham; Washita; Caddo; Canadian; Oklahoma; Lincoln; Grady; McClain; Cleveland; Pottawatomie; Seminole; Hughes; Harmon; Greer; Kiowa; Jackson; Tillman; Comanche; Stephens; Garvin; Murray; Pontotoc; Coal; Cotton; Jefferson; Carter; Johnston; Atoka; Love; Marshall; Bryan; Hardeman; Foard; Wilbarger; Wichita; Knox; Baylor; Archer; Clay

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Heat Advisory — Harper; Ellis; Woodward; Roger Mills; Dewey; Custer; Blaine; Beckham; Washita; Caddo; Canadian; Oklahoma; Lincoln; Grady; McClain; Cleveland; Pottawatomie; Seminole; Hughes; Harmon; Greer; Kiowa; Jackson; Tillman; Comanche; Stephens; Garvin; Murray; Pontotoc; Coal; Cotton; Jefferson; Carter; Johnston; Atoka; Love; Marshall; Bryan; Hardeman; Foard; Wilbarger; Wichita; Knox; Baylor; Archer; Clay Severity: Moderate. Certainty: Likely. * WHAT...Air temperatures as high as 105 and heat indices as high as 110. Overnight lows only drop to around 80 each morning. * WHERE...Portions of central, east central, northwest, southeast, southern, southwest, and western Oklahoma and northern Texas. * WHEN...Until 8 PM CDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.