Jun 29, 1998
A complex weather situation was set up over the central U.S. as a mesoscale convective system passed to the south of Iowa during the overnight hours and early morning of the 29th. Initially, the surface warm front was located to the south of this system. That was not actually the case aloft however. During the predawn hours the surface front surged north and by sunrise was located across northeast Nebraska across northern Iowa. The airmass was very unstable to the south of the front with dew
Source: NOAA National Weather Service Storm Events Database (event 5652986). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Dallas County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.