Aug 14, 2018
A mid level closed low, more typical of the cold season, passed slowly through PA and into eastern NY. Abundant moisture in the presence of this anomalous forcing produced heavy rain and flash flooding. The main corridors of heavy rain developed along fairly subtle deformation zones and subtle low level convergence zones in Oswego, Wayne, and Ontario counties, reaching eastern Monroe County by mid-morning.
Source: NOAA National Weather Service Storm Events Database (event 782236). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Oswego County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.