Jul 2, 1999
A flash flood was caused by 3 or more inches of rain in less than an hour. Many basements were flooded and left with mud and debris. Some foundations and basement walls collapsed, mainly in Sioux City. Many roads were flooded, at one intersection to a depth of eight feet, damaging vehicles by the water and debris. The flooding brought down some trees, and damaged some of the flooded streets as water undercut them. A motorist caught in the flooding and the firefighter who rescued him were treate
Source: NOAA National Weather Service Storm Events Database (event 5711980). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Woodbury County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.