Jun 5, 2017
A frontal boundary moved into north central Ohio in the early morning hours of the 5th. As an upstream upper-level trough approached the region, a cluster of thunderstorms developed within a moderately moist airmass to the south of the boundary. These conditions allowed some thunderstorms to produce very intense rainfall rates at times.
Source: NOAA National Weather Service Storm Events Database (event 691818). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Marion County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.