May 12, 2020
High pressure built over the Ohio Valley that resulted in a rapid wind shift from the northwest to the northeast around midnight of the 12th. Speeds were under 10 knots, however the change in direction allowed for a slosh effect with the higher water levels on the eastern basin. Water level at Toledo reached 75.6 inches at 1:42 AM in a slosh event.
Source: NOAA National Weather Service Storm Events Database (event 890640). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Ottawa County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.