May 13, 2011
During the evening and nighttime hours of May 11th, an area of low pressure located over southern Wisconsin slowly progressed northeast over the upper Great Lakes. A frontal boundary extended southeast of the low, across portions of Indiana into southern Ohio. That frontal boundary lifted north during the day on May 12 and stalled directly over northern Ohio. Thunderstorms developed along this boundary and produced large hail and significant rainfall throughout the day on May 12th. The severe th
Source: NOAA National Weather Service Storm Events Database (event 309234). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Lake County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.