May 17, 1999
Heavy rainfall once again began falling over northeast Iowa during the early morning hours. Rainfall occurred at the rate of an inch or more per hour. The soils over the county were already totally saturated by the heavy rainfall of the previous evening. As a result flash flooding took place easily. The additional damage was not major as the rain served only to exacerbate the flooding situation already taking place in the county.
Source: NOAA National Weather Service Storm Events Database (event 5693575). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Black Hawk County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.