FloodZoneMap.org

Flash Flood — Delaware, NY

Jul 13, 2025

A warm and unstable environment ahead of an approaching cold front supported the development of scattered thunderstorms. Weak steering winds contributed to slow moving storms repeating over the same areas which contributed to areas of heavy rainfall and flash flooding. Several locations around central New York reported flooded roads along with washouts of culverts and small bridges.

Source: NOAA National Weather Service Storm Events Database (event 1285738). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Delaware, NY

This event is one of many recorded floods in Delaware County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Delaware County flood data →

More Flood Stories

Flash Flood4 deaths$30.0M damage

Delaware, NY · Jun 19, 2007

High pressure moved off the east coast ahead of an approaching cold front, allowing southwest winds to bring a flow of hot and humid air across the region.

Read the full account →
Flash Flood2 deaths$250.0M damage

Delaware, NY · Jun 27, 2006

Tropical moisture continued to stream northward into upstate New York ahead of a frontal system which slowly moved westward into the eastern Great Lakes by Tuesday morning the 27th.

Read the full account →
Flood2 deaths$50K damage

Delaware, NY · Oct 29, 2003

The West Branch of the Delaware River in the town on Delhi went over its banks. About two miles upstream of the village of Delhi the river came onto Back River Road, also known as County Route 18.

Read the full account →
Flash Flood1 death$5.0M damage

Delaware, NY · Aug 28, 2011

Hurricane Irene brought heavy rains and high winds from northeast Pennsylvania to the Catskill Mountains of New York from Saturday evening the 27th to Sunday afternoon the 28th.

Read the full account →