Three waves of severe storms moved across western and north-central NY making for an almost 8-hour severe event. The first thunderstorms which developed over northeast Ohio and northwest Pennsylvania moved across the western southern tier.  The second round of thunderstorms developed mid-afternoon again across the western southern tier.  These storms then moved across western New York to the eastern Lake Ontario region. The third wave of storms developed along an advancing cold front during the evening hours over the Niagara Peninsula ��� then moving across western New York.

Thunderstorm Wind in MONROE, NEW YORK
From 22-AUG-17 12:17:00 to 22-AUG-17 12:17:00 (EST-5)
Location: PT PLEASANT
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported wires downed by thunderstorm winds on Laser Street.

Thunderstorm Wind in MONROE, NEW YORK
From 22-AUG-17 12:19:00 to 22-AUG-17 12:19:00 (EST-5)
Location: NORTHEAST HENRIETTA
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds that were blocking Brighton-Henrietta Town Line Road.

Thunderstorm Wind in CATTARAUGUS, NEW YORK
From 22-AUG-17 12:20:00 to 22-AUG-17 12:20:00 (EST-5)
Location: MACHIAS
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires downed by thunderstorm winds.

Thunderstorm Wind in LEWIS, NEW YORK
From 22-AUG-17 14:12:00 to 22-AUG-17 14:12:00 (EST-5)
Location: OSCEOLA
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed a tree which fell on a car on Osceola Road.

Thunderstorm Wind in WAYNE, NEW YORK
From 22-AUG-17 12:30:00 to 22-AUG-17 12:30:00 (EST-5)
Location: WEST WALWORTH
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported power lines downed by thunderstorm winds.

Thunderstorm Wind in CATTARAUGUS, NEW YORK
From 22-AUG-17 14:15:00 to 22-AUG-17 14:15:00 (EST-5)
Location: DELEVAN
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds blew siding off a house.

Thunderstorm Wind in LEWIS, NEW YORK
From 22-AUG-17 14:27:00 to 22-AUG-17 14:27:00 (EST-5)
Location: CONSTABLEVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in CATTARAUGUS, NEW YORK
From 22-AUG-17 14:21:00 to 22-AUG-17 14:21:00 (EST-5)
Location: ELLICOTTVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in JEFFERSON, NEW YORK
From 22-AUG-17 17:12:00 to 22-AUG-17 17:12:00 (EST-5)
Location: CARTHAGE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in WAYNE, NEW YORK
From 22-AUG-17 12:35:00 to 22-AUG-17 12:35:00 (EST-5)
Location: WILLIAMSON
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in LEWIS, NEW YORK
From 22-AUG-17 14:29:00 to 22-AUG-17 14:29:00 (EST-5)
Location: BEACHES BRIDGE
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in WAYNE, NEW YORK
From 22-AUG-17 12:45:00 to 22-AUG-17 12:45:00 (EST-5)
Location: PALMYRA
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in ALLEGANY, NEW YORK
From 22-AUG-17 12:50:00 to 22-AUG-17 12:50:00 (EST-5)
Location: HOUGHTON
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in JEFFERSON, NEW YORK
From 22-AUG-17 13:25:00 to 22-AUG-17 13:25:00 (EST-5)
Location: WATERTOWN
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm winds downed a large tree in the City of Watertown.

Thunderstorm Wind in LEWIS, NEW YORK
From 22-AUG-17 14:30:00 to 22-AUG-17 14:30:00 (EST-5)
Location: TALLCOTTVILLE
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in WYOMING, NEW YORK
From 22-AUG-17 14:33:00 to 22-AUG-17 14:33:00 (EST-5)
Location: PIKE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in LEWIS, NEW YORK
From 22-AUG-17 14:37:00 to 22-AUG-17 14:37:00 (EST-5)
Location: LYONSDALE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in CHAUTAUQUA, NEW YORK
From 22-AUG-17 11:07:00 to 22-AUG-17 11:07:00 (EST-5)
Location: PLEASANTVILLE
Magnitude: 50.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires down by thunderstorm winds.

Thunderstorm Wind in CHAUTAUQUA, NEW YORK
From 22-AUG-17 11:12:00 to 22-AUG-17 11:12:00 (EST-5)
Location: VICTORIA
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires down by thunderstorm winds.

Thunderstorm Wind in ALLEGANY, NEW YORK
From 22-AUG-17 14:43:00 to 22-AUG-17 14:43:00 (EST-5)
Location: CANEADEA
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in OSWEGO, NEW YORK
From 22-AUG-17 13:37:00 to 22-AUG-17 13:37:00 (EST-5)
Location: MEXICO
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm winds downed a large tree which damaged a truck.

Thunderstorm Wind in OSWEGO, NEW YORK
From 22-AUG-17 13:47:00 to 22-AUG-17 13:47:00 (EST-5)
Location: PARISH
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in OSWEGO, NEW YORK
From 22-AUG-17 13:50:00 to 22-AUG-17 13:50:00 (EST-5)
Location: REDFIELD
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in OSWEGO, NEW YORK
From 22-AUG-17 13:52:00 to 22-AUG-17 13:52:00 (EST-5)
Location: ALTMAR
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in ALLEGANY, NEW YORK
From 22-AUG-17 14:45:00 to 22-AUG-17 14:45:00 (EST-5)
Location: BELFAST
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in LIVINGSTON, NEW YORK
From 22-AUG-17 14:46:00 to 22-AUG-17 14:46:00 (EST-5)
Location: NUNDA
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm winds downed trees and flipped a carport.

Thunderstorm Wind in ONTARIO, NEW YORK
From 22-AUG-17 15:05:00 to 22-AUG-17 15:05:00 (EST-5)
Location: FARMINGTON
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in CHAUTAUQUA, NEW YORK
From 22-AUG-17 11:14:00 to 22-AUG-17 11:14:00 (EST-5)
Location: ELLERY CENTER
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires down by thunderstorm winds.

Thunderstorm Wind in CHAUTAUQUA, NEW YORK
From 22-AUG-17 11:37:00 to 22-AUG-17 11:37:00 (EST-5)
Location: CHERRY CREEK
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotters reported trees downed in Cherry Creek.

Thunderstorm Wind in ERIE, NEW YORK
From 22-AUG-17 11:41:00 to 22-AUG-17 11:41:00 (EST-5)
Location: COLLINS CENTER
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorm winds downed trees along West Becker Road.

Thunderstorm Wind in CATTARAUGUS, NEW YORK
From 22-AUG-17 11:43:00 to 22-AUG-17 11:43:00 (EST-5)
Location: LEON
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down by thunderstorm winds.

Thunderstorm Wind in CATTARAUGUS, NEW YORK
From 22-AUG-17 11:51:00 to 22-AUG-17 11:51:00 (EST-5)
Location: CATTARAUGUS
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in OSWEGO, NEW YORK
From 22-AUG-17 13:53:00 to 22-AUG-17 13:53:00 (EST-5)
Location: ORWELL
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in CATTARAUGUS, NEW YORK
From 22-AUG-17 14:02:00 to 22-AUG-17 14:02:00 (EST-5)
Location: RANDOLPH
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in CATTARAUGUS, NEW YORK
From 22-AUG-17 14:09:00 to 22-AUG-17 14:09:00 (EST-5)
Location: LITTLE VLY
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in LEWIS, NEW YORK
From 22-AUG-17 14:10:00 to 22-AUG-17 14:10:00 (EST-5)
Location: OSCEOLA
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds. The trees damaged a house.

Thunderstorm Wind in CAYUGA, NEW YORK
From 22-AUG-17 15:42:00 to 22-AUG-17 15:42:00 (EST-5)
Location: CATO
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in CAYUGA, NEW YORK
From 22-AUG-17 15:48:00 to 22-AUG-17 15:48:00 (EST-5)
Location: IRA
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorm Wind in JEFFERSON, NEW YORK
From 22-AUG-17 16:48:00 to 22-AUG-17 16:48:00 (EST-5)
Location: WATERTOWN
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees downed by thunderstorm winds.