Aug 27, 2021
Scattered storms developed in a warm, humid airmass to the south of a stalled frontal boundary over southern New York state during the late afternoon and early evening of August 27, 2021. A couple of these storms produced wind damage in the Lower Susquehanna Valley. Flash flooding was also reported in Tioga County near Mansfield.
Source: NOAA National Weather Service Storm Events Database (event 976354). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Tioga County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.