Dec 1, 2010
A frontal system moved east from the Ohio Valley and spread a steady rain across western New York. Rainfall totals of three to four inches resulted in not only flooding on major rivers but road flooding was reported throughout Cattaraugus County. The Genesee and Allegheny Rivers both exceeded flood stage. At Wellsville, the Genesee River crested at 11.9 feet (flood stage is 11.0 feet). At Portageville, the Genesee River crested at 21.67 feet (flood stage is 19.0 feet). At Salamanca, the Alleghen
Source: NOAA National Weather Service Storm Events Database (event 274422). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Allegany County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.