Event narrative (NOAA)
Flooding along the Missouri River gradually worsened over the area during June into July as record inflows into the Missouri River above Sioux City in June and much above normal inflows during July prompted record releases from Gavins Point Dam. The river at Nebraska City reached a record crest of a little over 28 feet by the end of the June before falling through early July as levees in the area were breached and widened by flood waters. Although moderate flooding still persisted into August, river values started falling by the end of the month and minor flooding continued into September as outflows from Gavins Point were reduced. River values at Nebraska City started August a little over 23 feet and ended the month a little over 20.5 feet. Flood stage at Nebraska City is 18 feet. The
Other notable flood events in Iowa
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.