Aug 18, 2019
Several areas of weakening convection moved through the area during the morning. Following this, debris clouds slowly eroded and allowed moderate instability to develop. Remnant outflow boundaries and differential heating boundaries from areas of lingering cloud cover acted as the focus for new convective development in the afternoon, mainly from the western Finger Lakes to points southeast and east of Lake Ontario. Moderate instability coupled with limited shear produced a pulse storm environme
Source: NOAA National Weather Service Storm Events Database (event 854058). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Ontario County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.