Aug 28, 2016
Thunderstorms developed during the late morning and early afternoon across a zone just south of I-80 in northern Illinois and northwest Indiana and persisted for several hours. An extremely moist environment set the stage for very heavy rainfall rates. In addition, storms were moving slow and training over the same areas. This brought about flash flooding due to rainfall amounts estimated at three plus inches, and possibly near six, in some locations. The hardest hit communities were Bracevi
Source: NOAA National Weather Service Storm Events Database (event 659491). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Grundy County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.