Two distinct lines of thunderstorms developed ahead of a weak boundary during the late afternoon and became more organized toward evening. One line developed across the Genesee Valley and the other across the eastern Lake Ontario Region. Thunderstorm winds downed trees in Ridgeway, Murray, Ogden Center, Ellery Center, Belleville, Croghan, Lowville and near the Chautauqua Institution.  In some areas, scattered power outages were reported as the falling limbs and trees brought down power lines. In Rochester, lighting struck a house igniting a fire and damaging the chimney.

Lightning in MONROE, NEW YORK
From 01-JUN-13 17:35:00 to 01-JUN-13 17:35:00 (EST-5)
Location: BEECHWOOD
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported that house was damaged by a lightning strike.

Thunderstorm Wind in LEWIS, NEW YORK
From 01-JUN-13 19:10:00 to 01-JUN-13 19:10:00 (EST-5)
Location: NEW BREMEN DUFLO ARP
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down.

Thunderstorm Wind in LEWIS, NEW YORK
From 01-JUN-13 19:12:00 to 01-JUN-13 19:12:00 (EST-5)
Location: CROGHAN
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down.

Thunderstorm Wind in ERIE, NEW YORK
From 01-JUN-13 22:57:00 to 01-JUN-13 22:57:00 (EST-5)
Location: JEWETTVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Employee

Law enforcement reported trees down.

Thunderstorm Wind in JEFFERSON, NEW YORK
From 01-JUN-13 17:06:00 to 01-JUN-13 17:06:00 (EST-5)
Location: BELLEVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down near Belleville.

Thunderstorm Wind in ORLEANS, NEW YORK
From 01-JUN-13 17:06:00 to 01-JUN-13 17:06:00 (EST-5)
Location: MURRAY
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down near Murray.

Thunderstorm Wind in MONROE, NEW YORK
From 01-JUN-13 17:25:00 to 01-JUN-13 17:25:00 (EST-5)
Location: OGDEN CENTER
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down near Ogden Center.

Thunderstorm Wind in LEWIS, NEW YORK
From 01-JUN-13 17:54:00 to 01-JUN-13 17:54:00 (EST-5)
Location: CROGHAN
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down.

Thunderstorm Wind in LEWIS, NEW YORK
From 01-JUN-13 18:03:00 to 01-JUN-13 18:03:00 (EST-5)
Location: LOWVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down.

Thunderstorm Wind in CHAUTAUQUA, NEW YORK
From 01-JUN-13 18:20:00 to 01-JUN-13 18:20:00 (EST-5)
Location: BEMUS PT
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down.

Thunderstorm Wind in ORLEANS, NEW YORK
From 01-JUN-13 16:25:00 to 01-JUN-13 16:25:00 (EST-5)
Location: RIDGEWAY
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down in Ridgeway.

Thunderstorm Wind in CHAUTAUQUA, NEW YORK
From 01-JUN-13 18:23:00 to 01-JUN-13 18:23:00 (EST-5)
Location: CHAUTAUQUA
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down.