Jul 17, 2021
Multiple rounds of showers and storms affected the region from the afternoon of the 15th to the morning of the 18th as a slow moving front interacted with several upper level disturbances. While instability and moisture were near to below seasonal normals, training of storms over already saturated areas led to localized flooding of low water crossings. Flooding mainly occurred during the 16th and 17th.
Source: NOAA National Weather Service Storm Events Database (event 973713). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in St. Clair County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.