 The National Weather Service in Des Moines has issued a severe thunderstorm warning for northeastern Hardin County in central Iowa, Grundy County in central Iowa, until 5 p.m. At 4.12 p.m., a severe thunderstorm was located over Oasa, or near Eldora, moving southeast at 30 miles per hour. Expected hazards include 70 miles per hour wind gusts and quarter-size hail. This is a radar-indicated threat.