Jul 14, 2021
Thunderstorms with heavy rain developed between 2 AM and 4 AM in an area of stronger convergence off Lake Erie in southern Erie County. Automated gauges from weather underground were helpful to get ground truth rainfall reports. Repeated heavy rain resulted in flash flooding in the Southern Tier. Multiple road closures were reported. Areal flooding lingered after the flash flood. The heaviest rain hit the headwaters of the east and west branches of Cazenovia Creek, resulting in very high flows i
Source: NOAA National Weather Service Storm Events Database (event 976462). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Chautauqua County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.