Severe · Flash Flood WarningThis alert has expired. It is kept for reference.

Flash Flood Warning issued September 2 at 10:25PM EDT until September 3

Affecting Allegany, NY; Cattaraugus, NY

In effect until: Sep 3, 2026, 4:45 AM

Allegany, NY; Cattaraugus, NY

Likely impact across 2 counties in NY; effects through 4:45 AM.

Get to higher ground now. Never drive through flooded roads.

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Read the original bulletin (official text)

At 1025 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2.5 and 3.5 inches of rain have
fallen. Additional rainfall amounts of 0.5 to 1 inch are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.

Some locations that will experience flash flooding include...
Olean, Salamanca, Wellsville, Allegany State Park, Ashford,
Allegany, Franklinville, Belfast, Cuba, Rushford, Weston Mills, St.
Bonaventure, Houghton, Caneadea, Hinsdale, Friendship, Great
Valley, New Albion, Scio and Carrollton.

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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™

Flash Flood Warning issued September 2 at 10:25PM EDT until September 3

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