Aug 5, 2016
Several large clusters of thunderstorms developed ahead of a cold front as it moved south into southern Illinois during the heat of the afternoon. Winds aloft were rather weak. However, the storms moved into a corridor of very moist and unstable air with surface dew points from 75 to 80. As low-level lapse rates steepened considerably in the afternoon, strong outflow wind gusts occurred with some multi-cell storm clusters. Local flash flooding resulted from the tropical moisture and weak steerin
Source: NOAA National Weather Service Storm Events Database (event 652348). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in McCracken County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.