Aug 12, 2016
An approaching cold front triggered thunderstorms across central Illinois during the late afternoon and evening of August 12th. Due to copious amounts of moisture in the atmosphere and the slow-moving nature of the storms, extremely heavy rain fell along and just west of I-55. The heaviest rain occurred in a swath from southern Woodford County southward into western Sangamon County where 3.00 to 6.00 inches were common. The Springfield Airport set a new daily record for August 12th and a new c
Source: NOAA National Weather Service Storm Events Database (event 658364). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Mason County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.