SIOUX FALLS, SD (105 AM CDT Mon Apr 22 2019) — The National Weather Service in Sioux Falls has issued a Severe Thunderstorm Warning for Northwestern Woodbury County in west central Iowa Southeastern Plymouth County in northwestern Iowa until 130 AM CDT. At 105 AM CDT, a severe thunderstorm was located near Sioux City, moving northeast at 20 mph. HAZARD: Quarter size hail. SOURCE: Radar indicated. Damage to vehicles is expected. This severe thunderstorm will be near Hinton around 125 AM CDT. Merrill around 130 AM CDT. For your protection move to an interior room on the lowest floor of a building.