Under the influence of a warm, moist airmass, thunderstorms developed across western and north-central New York.  A severe multi-cell cluster of storms over northeast Pennsylvania, tracked northeast  forming a line of thunderstorms that moved across the region from Chautauqua County to Lewis County during the afternoon and early evening hours.   Law enforcement reported trees and wires downed by thunderstorm winds. Several roads were partially or completely blocked by debris from the falling trees.

Thunderstorm Wind in CHAUTAUQUA, NEW YORK
From 18-JUN-17 18:40:00 to 18-JUN-17 18:40:00 (EST-5)
Location: ELLERY CENTER
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 on Dutch Hollow Road.

Thunderstorm Wind in CHAUTAUQUA, NEW YORK
From 18-JUN-17 14:30:00 to 18-JUN-17 14:30:00 (EST-5)
Location: PANAMA
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 CHAUTAUQUA, NEW YORK
From 18-JUN-17 14:32:00 to 18-JUN-17 14:32:00 (EST-5)
Location: NASHVILLE
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 on Dye Road.

Thunderstorm Wind in CATTARAUGUS, NEW YORK
From 18-JUN-17 15:06:00 to 18-JUN-17 15:06:00 (EST-5)
Location: LEON
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 CHAUTAUQUA, NEW YORK
From 18-JUN-17 15:17:00 to 18-JUN-17 15:17:00 (EST-5)
Location: FREWSBURG
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained Spotters reported trees and wires downed by thunderstorm winds.

Thunderstorm Wind in CATTARAUGUS, NEW YORK
From 18-JUN-17 15:30:00 to 18-JUN-17 15:30:00 (EST-5)
Location: ONOVILLE
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 CHAUTAUQUA, NEW YORK
From 18-JUN-17 13:30:00 to 18-JUN-17 13:30:00 (EST-5)
Location: PANAMA
Magnitude: 50.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires downed by thunderstorm winds.

Thunderstorm Wind in CHAUTAUQUA, NEW YORK
From 18-JUN-17 14:20:00 to 18-JUN-17 14:20:00 (EST-5)
Location: SUMMERDALE
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 on Sherman-Westfield Road.

Thunderstorm Wind in CATTARAUGUS, NEW YORK
From 18-JUN-17 16:07:00 to 18-JUN-17 16:07:00 (EST-5)
Location: ALLEGANY
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 MONROE, NEW YORK
From 18-JUN-17 16:15:00 to 18-JUN-17 16:15:00 (EST-5)
Location: SCOTTSVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media reported trees and wires downed by thunderstorm winds on Quaker Road.

Thunderstorm Wind in LEWIS, NEW YORK
From 18-JUN-17 16:21:00 to 18-JUN-17 16:21:00 (EST-5)
Location: DENMARK
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 on Old State Road.

Thunderstorm Wind in ALLEGANY, NEW YORK
From 18-JUN-17 16:24:00 to 18-JUN-17 16:24:00 (EST-5)
Location: BOLIVAR
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 LIVINGSTON, NEW YORK
From 18-JUN-17 16:24:00 to 18-JUN-17 16:24:00 (EST-5)
Location: GENESEO
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 on Eagle Point Road.

Thunderstorm Wind in ALLEGANY, NEW YORK
From 18-JUN-17 16:30:00 to 18-JUN-17 16:30:00 (EST-5)
Location: HUME
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 MONROE, NEW YORK
From 18-JUN-17 16:32:00 to 18-JUN-17 16:32:00 (EST-5)
Location: BRIGHTON
Magnitude: 50.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Social Media

Social media had reported of trees and wires downed by thunderstorm winds.

Thunderstorm Wind in LEWIS, NEW YORK
From 18-JUN-17 16:40:00 to 18-JUN-17 16:40:00 (EST-5)
Location: CROGHAN
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 on George Street.

Thunderstorm Wind in ONTARIO, NEW YORK
From 18-JUN-17 17:04:00 to 18-JUN-17 17:04:00 (EST-5)
Location: MANCHESTER
Magnitude: 50.00 EG
Property damage: 12.00K
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 18-JUN-17 17:10:00 to 18-JUN-17 17:10:00 (EST-5)
Location: CHASE LAKE
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 WAYNE, NEW YORK
From 18-JUN-17 17:16:00 to 18-JUN-17 17:16:00 (EST-5)
Location: NEWARK
Magnitude: 50.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires downed by thunderstorm winds.

Thunderstorm Wind in WAYNE, NEW YORK
From 18-JUN-17 17:24:00 to 18-JUN-17 17:24:00 (EST-5)
Location: LYONS
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 CAYUGA, NEW YORK
From 18-JUN-17 17:46:00 to 18-JUN-17 17:46:00 (EST-5)
Location: WEEDSPORT WHTFRDS AR
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 CAYUGA, NEW YORK
From 18-JUN-17 17:48:00 to 18-JUN-17 17:48:00 (EST-5)
Location: CATO
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 CAYUGA, NEW YORK
From 18-JUN-17 17:51:00 to 18-JUN-17 17:51:00 (EST-5)
Location: MERIDIAN
Magnitude: 50.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires downed by thunderstorm winds.

Thunderstorm Wind in OSWEGO, NEW YORK
From 18-JUN-17 18:21:00 to 18-JUN-17 18:21:00 (EST-5)
Location: LACONA
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires downed by thunderstorm winds.

Thunderstorm Wind in OSWEGO, NEW YORK
From 18-JUN-17 18:27:00 to 18-JUN-17 18:27:00 (EST-5)
Location: WEST AMBOY
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 at the intersection of Little Pond and Coan Roads.

Thunderstorm Wind in OSWEGO, NEW YORK
From 18-JUN-17 18:27:00 to 18-JUN-17 18:27:00 (EST-5)
Location: BOYLESTON CENTER
Magnitude: 50.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires downed by thunderstorm winds.