 The National Weather Service in Norman has issued a severe thunderstorm warning for south central Roger Mills County in western Oklahoma, northeastern Beckham County in western Oklahoma, until 8.45 p.m. Central Daylight Time. At 7.54 p.m. Central Daylight Time, a severe thunderstorm was located 9 miles north of Thayer, moving southeast at 15 miles an hour. Expected hazards include 60 miles an hour wind gusts and half-dollar-size hail.