Flash Flood — Wyoming, New York

2023-07-03 · near Castile, Wyoming, New York

Event narrative

Portions of Park Road and other hiking trails in Letchworth Park closed due to flooding.

Wider weather episode

A slow moving front and a very moist airmass yielded slow moving thunderstorms that dumped heavy rain over southeast Wyoming county with portions of park roads and hiking trails flooded at Letchworth State Park. The front then stalled out during the evening along the New York and Pennsylvania state line leading to multiple rounds of slow moving thunderstorms crossing the same areas with drenching rains. Significant flash flooding occurred over southwest Allegany county in Bolivar and Richburg, where some roads were washed out. Some of these road closures may last for a while.

View location on OpenStreetMap → (42.6000, -78.0300)

Source: NOAA Storm Events Database, event_id 1117068. Narrative written by the NWS forecast office that issued the report.