 The National Weather Service in Sioux Falls has issued a severe thunderstorm warning for Northeastern Rock County in southwestern Minnesota, Northwestern Nobles County in southwestern Minnesota, Southeastern Pipestone County in southwestern Minnesota, Western Murray County in southwestern Minnesota, until 8.15 p.m. At 7.33 p.m., a severe thunderstorm was located near Chandler, or 14 miles southeast of Pipestone, moving northeast at 30 miles an hour.