Advarsler, Charles H MacNider Museum

Severe Thunderstorm Warning issued July 2 at 12:27PM CDT until July 2 at 12:45PM CDT by NWS Des Moines IA At 1227 PM CDT, a severe thunderstorm was located near Rockwell, or 8 miles south of Mason City, moving northeast at 30 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. Locations impacted include... Mason City, Nora Springs, Rockwell, Plymouth, Swaledale, Rock Falls, Burchinal, and Portland. For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.