Oct 26, 2021
Deep moisture from the Atlantic Ocean was fed into a warm frontal zone located over Central New York by low pressure near New York City. This led to areas of moderate to heavy rainfall totaling between 3 to 5 inches of rain with locally higher amounts. This rainfall led to widespread flash flooding across the Southern Tier and Finger Lakes region.
Source: NOAA National Weather Service Storm Events Database (event 989817). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Onondaga County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.