An area of low pressure tracked northeast across Ohio along a stationary front that stretches all the way east through western and central New York. This area of low pressure then tracked east across western New York and the Finger Lakes region. Moderate to heavy rain entered far western NY and advanced eastward across the region. One hour flash flood guidance was 1 to 2 inches across a majority of the region. This was surpassed in some locations, resulting in localized flash flooding. Otherwise, rises on rivers and creeks were the result, especially in the Buffalo area.

Flash Flood in CHAUTAUQUA, NEW YORK
From 16-JUL-21 15:30:00 to 16-JUL-21 17:30:00 (EST-5)
Location: CONEWANGO VLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Waterboro Hill Road was closed due to water flowing over the road.

Flash Flood in CHAUTAUQUA, NEW YORK
From 16-JUL-21 16:30:00 to 16-JUL-21 18:00:00 (EST-5)
Location: BEMUS PT
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Water was backing up the Bemus Creek, across Bemus Point, due to the rising level of Chautauqua Lake. Voluntary evacuations of area homes was underway.

Flash Flood in CATTARAUGUS, NEW YORK
From 17-JUL-21 15:20:00 to 17-JUL-21 17:20:00 (EST-5)
Location: SOUTH DAYTON ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Multiple reports of flooded roads were received south of Dayton.

Flash Flood in ERIE, NEW YORK
From 17-JUL-21 15:32:00 to 17-JUL-21 18:00:00 (EST-5)
Location: EAST CONCORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Reports of widespread road closures in Springville due to flooding. Vaughn Street was also closed in East Concord.

Flash Flood in ERIE, NEW YORK
From 17-JUL-21 15:45:00 to 17-JUL-21 17:45:00 (EST-5)
Location: COLLINS CENTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flash flooding was reported on Zoar Valley Road.

Flash Flood in ERIE, NEW YORK
From 17-JUL-21 15:45:00 to 17-JUL-21 17:45:00 (EST-5)
Location: SARDINIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flash flooding was reported on Genesee Road in Sardinia.

Heavy Rain in CHAUTAUQUA, NEW YORK
From 16-JUL-21 13:45:00 to 16-JUL-21 13:45:00 (EST-5)
Location: GERRY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A two hour rainfall report was received.

Heavy Rain in CHAUTAUQUA, NEW YORK
From 16-JUL-21 14:18:00 to 16-JUL-21 14:18:00 (EST-5)
Location: JAMESTOWN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The rain fell in 20 minutes.

Heavy Rain in LIVINGSTON, NEW YORK
From 17-JUL-21 13:00:00 to 17-JUL-21 13:00:00 (EST-5)
Location: LIMA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in ERIE, NEW YORK
From 17-JUL-21 13:00:00 to 17-JUL-21 13:00:00 (EST-5)
Location: DEPEW
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy Rain in ERIE, NEW YORK
From 17-JUL-21 15:00:00 to 17-JUL-21 15:00:00 (EST-5)
Location: HARRIS HILL
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy Rain in GENESEE, NEW YORK
From 17-JUL-21 15:17:00 to 17-JUL-21 15:17:00 (EST-5)
Location: LE ROY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy Rain in ERIE, NEW YORK
From 17-JUL-21 16:19:00 to 17-JUL-21 16:19:00 (EST-5)
Location: SWIFTS MILLS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in ERIE, NEW YORK
From 17-JUL-21 16:30:00 to 17-JUL-21 16:30:00 (EST-5)
Location: KENMORE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A six hour rainfall report was received.

Heavy Rain in ERIE, NEW YORK
From 17-JUL-21 17:30:00 to 17-JUL-21 17:30:00 (EST-5)
Location: ALDEN CENTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in LIVINGSTON, NEW YORK
From 17-JUL-21 17:00:00 to 17-JUL-21 17:00:00 (EST-5)
Location: LIMA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in GENESEE, NEW YORK
From 17-JUL-21 17:00:00 to 17-JUL-21 17:00:00 (EST-5)
Location: LE ROY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy Rain in ERIE, NEW YORK
From 17-JUL-21 18:40:00 to 17-JUL-21 18:40:00 (EST-5)
Location: FALCONWOOD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy Rain in ERIE, NEW YORK
From 17-JUL-21 19:34:00 to 17-JUL-21 19:34:00 (EST-5)
Location: TONAWANDA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in MONROE, NEW YORK
From 17-JUL-21 20:30:00 to 17-JUL-21 20:30:00 (EST-5)
Location: OGDEN CENTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in ERIE, NEW YORK
From 17-JUL-21 21:00:00 to 17-JUL-21 21:00:00 (EST-5)
Location: HARRIS HILL
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter