Jul 18, 2015
Weak shortwave trough moving through upper Michigan combined with retreating outflow boundary from morning/early afternoon storms, which moved through northern Indiana/northwest Ohio, spurned new storm development from southern Wisconsin southeast through northeast Illinois by later afternoon. Storms were initially sub-severe and disorganized, but two main bowing segments, one along and north of the Interstate 80/90 corridor and another along the US-30 corridor, developed as cold pool strengthen
Source: NOAA National Weather Service Storm Events Database (event 595453). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Marshall County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.