 The National Weather Service in Topeka has issued a severe thunderstorm warning for northwestern Potawatomi County in northeastern Kansas, southeastern Marshall County in northeastern Kansas, until 7.15 p.m. At 6.50 p.m., a severe thunderstorm was located near Oldsburg, moving east at 35 miles per hour. Expected hazards include 60 miles per hour wind gusts and half-dollar-size hail.