Jun 17, 2002
A line of thunderstorms developed over southwest Niagara and northern Erie counties with successive training on either side of Tonawanda Creek. Two inches of rain fell in less than an hour and a nursing home was evacuated as a precaution as clogged drains held the heavy rains on the building rooftop. Dozens of roads were under water. Pea- to nickel-sized hail covered the ground in North Tonawanda. The thunderstorms produced hail up to 1" in diameter.
Source: NOAA National Weather Service Storm Events Database (event 5306327). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Niagara County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.