Jun 22, 2007
A rather complex weather situation unfolded during the day on the 22nd. The situation was complicated by the convection that occurred during the previous night. An outflow boundary from the previous nights convection pushed south across the CWA, reaching the southern part by sunrise. This boundary combined with a quasi-stationary frontal boundary that was across the southern counties. The atmosphere became unstable quite rapidly during the late morning and early afternoon. Surface low press
Source: NOAA National Weather Service Storm Events Database (event 28316). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Poweshiek County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.