Nov 15, 2020
A rapidly intensifying low pressure system advanced through the western Great Lakes and eventually spun up toward James Bay. This pushed a cold front across the area during the latter half of November 15. Along the cold front, shallow convection developed with widespread non-severe hail and widespread wind gusts over 60 mph. In the wake of the front, a second and longer-lasting period of non-convective high winds persisted through much of the evening and into the overnight east of Lake Ontario.
Source: NOAA National Weather Service Storm Events Database (event 920752). 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.