Jun 23, 2000
Morning upper air analysis showed a low level thermal gradient from Eastern Minnesota through Eastern Iowa into Western Illinois. A southerly low level jet of 25 to 30 knots interacted with the boundary to trigger strong to severe thunderstorms over Chickasaw and Black Hawk Counties during the late morning. Thunderstorms continued to develop throughout the afternoon and evening over Eastern Iowa, producing a few reports of hail, wind damage and heavy rain. Hail up to golfball size fell 2 miles
Source: NOAA National Weather Service Storm Events Database (event 5153816). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Henry County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.