Oct 29, 2021
Low pressure over the Ohio Valley allowed southeast winds out ahead of the storm system to draw in deep Atlantic moisture across Central New York. This combined with an upper level disturbance sweeping through the area produced widespread moderate to heavy rainfall. This rain came on the heels of a heavy rain day three days prior, making it easier for additional flash flooding to develop.
Source: NOAA National Weather Service Storm Events Database (event 989880). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Steuben County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.