Aug 4, 2009
Moist, unstable air ahead of an approaching cold front set off scattered strong to severe thunderstorms during the late afternoon and evening. The Lake Erie breeze served as focal point for initial severe convection that produced quarter sized hail over Wyoming County. Over the eastern Lake Ontario region, the thunderstorms downed trees and power lines in Jefferson County. In Philadelphia, a 14��� x 80��� trailer was flipped by the downburst winds. As the thunderstorms moved across s
Source: NOAA National Weather Service Storm Events Database (event 194476). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Erie County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.