Aug 7, 2021
An upper level trough axis moved into western New York during the evening hours. This feature moved into a modestly unstable environment fairly unimpressive precipitable water values of only just slightly over one inch. Further, low level moisture transport was unimpressive. A cluster of storms congealed around northern Livingston and southern Monroe counties. Weak flow and some back-building allowed for torrential rain over the area. A few spots had three inches per hour rainfall rates that las
Source: NOAA National Weather Service Storm Events Database (event 982714). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Monroe County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.