Jun 18, 1998
A warm front extended from a low pressure area over northeast Nebraska, southeast through central into southeast Iowa. A cold front extended south from the low into Kansas. South of the warm front, dew point temperatures were in the low 70s. A speed max passed to the northwest of the state, placing Iowa in the right rear entrance region of the speed max. This set the stage for thunderstorm development. A strong low level jet was in place with speeds in excess of 50 knots. Initially, a smal
Source: NOAA National Weather Service Storm Events Database (event 5654306). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Polk County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.