Jul 9, 2023
There was significant flash flooding including a building collapse and a water rescue in Canandaigua in the late afternoon as some estimates point to a 100 year flood event. A state of emergency was declared for Ontario county. Flash flooding also occurred in portions of Lewis County into the early evening. Numerous roads in these counties were flooded and impassable with some washed out. A weak wave of low pressure stalled along a trough combined with increasing moisture and instability to focu
Source: NOAA National Weather Service Storm Events Database (event 1117162). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Ontario County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.