 The National Weather Service in Norman has issued a severe thunderstorm warning for northeastern Jackson County in southwestern Oklahoma, central Kiowa County in southwestern Oklahoma, until 8 p.m. Central Daylight Time. At 7.08 p.m. Central Daylight Time, a severe thunderstorm was located near Tom Steed Reservoir, moving southeast at 20 miles an hour. Expected hazards include ping-pong ball-sized hail and 60 miles an hour wind gusts.