* WHAT. Dangerously hot conditions with heat index values up to 112 expected. * WHERE. Portions of east central, southeast, southern, and southwest Oklahoma and northern Texas. * WHEN. Until 9 PM CDT this evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. Heat index values up to 110 expected. * WHERE. Portions of central, east central, northern, northwest, southeast, southwest, and western Oklahoma. * WHEN. Until 9 PM CDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 109 expected. * WHERE. Portions of central, northern, northwest, southwest, and western Oklahoma. * WHEN. Until 9 PM CDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Dangerously hot conditions with heat index values up to 112 expected. * WHERE. Portions of east central, southeast, southern, and southwest Oklahoma and northern Texas. * WHEN. Until 9 PM CDT this evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

SVROUN The National Weather Service in Norman has issued a * Severe Thunderstorm Warning for. Northern Jefferson County in southern Oklahoma. Southwestern Garvin County in southern Oklahoma. Stephens County in southern Oklahoma. Northwestern Carter County in southern Oklahoma. * Until 915 PM CDT. * At 825 PM CDT, severe thunderstorms were located along a line extending from near Bray to near Duncan to 3 miles north of Corum, moving southeast at 25 mph. HAZARD. 60 mph wind gusts. SOURCE. Radar indicated. IMPACT. Expect damage to roofs, siding, and trees. * Locations impacted include. Duncan, Waurika, Healdton, Comanche, Bray, Ringling, Velma, Tatums, Loco, Ratliff City, Addington, Waurika Lake, Corum, Empire City, Cornish, Fox, and Pernell.