Jul 20, 2025
A moist and unstable environment on the southern side of an east-west oriented boundary brought thunderstorms to areas along and south of Interstate 80 in Iowa during the late evening of July 19th, 2025 and morning of July 20th, 2025. Despite 30 to 40 kts of shear, storms generally remained sub-severe as they tracked southward through Iowa. However, upon reaching the southern portions of the state, the storms made an eastward turn towards Wapello county where they encountered drier air in the lo
Source: NOAA National Weather Service Storm Events Database (event 1289182). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Madison County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.