A strong area of low pressure tracked from the Great Lakes to the Saint Lawrence Valley from the morning of the the 4th to the evening hours. This low pulled a warm front north of central New York in the morning and then a strong cold front across central New York and northeast Pennsylvania during the evening hours. This front triggered a line of severe thunderstorms that moved across central New York and northeast Pennsylvania the evening of the 4th.

Thunderstorm Wind in STEUBEN, NEW YORK
From 04-MAY-18 16:59:00 to 04-MAY-18 16:59:00 (EST-5)
Location: CAMPBELL
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew down trees over county Route 17 and  King Hill road.

Thunderstorm Wind in TOMPKINS, NEW YORK
From 04-MAY-18 17:10:00 to 04-MAY-18 17:10:00 (EST-5)
Location: MC KINNEYS PT
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew trees down on a vehicle on Cayuga Heights Road.

Thunderstorm Wind in CORTLAND, NEW YORK
From 04-MAY-18 17:20:00 to 04-MAY-18 17:20:00 (EST-5)
Location: HOMER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew trees down across a roadway.

Thunderstorm Wind in TOMPKINS, NEW YORK
From 04-MAY-18 17:22:00 to 04-MAY-18 17:22:00 (EST-5)
Location: ITHACA
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew trees down on wires near the intersection of Elmwood Avenue and  Ithaca Road.

Thunderstorm Wind in TOMPKINS, NEW YORK
From 04-MAY-18 17:39:00 to 04-MAY-18 17:39:00 (EST-5)
Location: SLATERVILLE SPGS
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew trees down across  the intersection of Yellow Barn Road and Midline Road.

Thunderstorm Wind in ONEIDA, NEW YORK
From 04-MAY-18 17:42:00 to 04-MAY-18 17:42:00 (EST-5)
Location: KIRKLAND
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew numerous trees and wires down.

Thunderstorm Wind in ONEIDA, NEW YORK
From 04-MAY-18 17:45:00 to 04-MAY-18 17:45:00 (EST-5)
Location: ELMER HILL
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew numerous trees and wires down.

Thunderstorm Wind in ONEIDA, NEW YORK
From 04-MAY-18 17:47:00 to 04-MAY-18 17:47:00 (EST-5)
Location: CLINTON
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew numerous trees and wires down.

Thunderstorm Wind in ONEIDA, NEW YORK
From 04-MAY-18 17:47:00 to 04-MAY-18 17:47:00 (EST-5)
Location: STITTVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew numerous trees and wires down.

Thunderstorm Wind in ONEIDA, NEW YORK
From 04-MAY-18 17:50:00 to 04-MAY-18 17:50:00 (EST-5)
Location: BARNVELD
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew trees and wires down.

Thunderstorm Wind in BROOME, NEW YORK
From 04-MAY-18 17:51:00 to 04-MAY-18 17:51:00 (EST-5)
Location: LISLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Thunderstorm winds blew trees and wires down.

Thunderstorm Wind in CORTLAND, NEW YORK
From 04-MAY-18 17:53:00 to 04-MAY-18 17:53:00 (EST-5)
Location: HOMER
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew trees down across a roadway.

Thunderstorm Wind in CHENANGO, NEW YORK
From 04-MAY-18 18:02:00 to 04-MAY-18 18:02:00 (EST-5)
Location: NORWICH
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew numerous trees and wires down on Cortland Street with  wires causing grass fire.

Thunderstorm Wind in BROOME, NEW YORK
From 04-MAY-18 18:20:00 to 04-MAY-18 18:20:00 (EST-5)
Location: VESTAL
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm winds blew numerous trees and wires down on Clayton Avenue.

Thunderstorm Wind in OTSEGO, NEW YORK
From 04-MAY-18 18:32:00 to 04-MAY-18 18:32:00 (EST-5)
Location: HARTWICK
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew trees and wires down.

Thunderstorm Wind in OTSEGO, NEW YORK
From 04-MAY-18 18:34:00 to 04-MAY-18 18:34:00 (EST-5)
Location: MIDDLEFIELD
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew trees down which blocked Route 28.

Thunderstorm Wind in OTSEGO, NEW YORK
From 04-MAY-18 18:50:00 to 04-MAY-18 18:50:00 (EST-5)
Location: EDMESTON
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm winds blew down numerous trees.

Thunderstorm Wind in DELAWARE, NEW YORK
From 04-MAY-18 18:55:00 to 04-MAY-18 18:55:00 (EST-5)
Location: DELHI
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew down numerous trees and wires.

Thunderstorm Wind in DELAWARE, NEW YORK
From 04-MAY-18 19:00:00 to 04-MAY-18 19:00:00 (EST-5)
Location: HANCOCK
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew down trees and wires.

Thunderstorm Wind in SULLIVAN, NEW YORK
From 04-MAY-18 19:25:00 to 04-MAY-18 19:25:00 (EST-5)
Location: NORTH BRANCH
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew down wires.

Thunderstorm Wind in SULLIVAN, NEW YORK
From 04-MAY-18 19:25:00 to 04-MAY-18 19:25:00 (EST-5)
Location: HORTONVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew down trees and wires.

Thunderstorm Wind in SULLIVAN, NEW YORK
From 04-MAY-18 19:27:00 to 04-MAY-18 19:27:00 (EST-5)
Location: COCHECTON
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew down trees and wires.

Thunderstorm Wind in SULLIVAN, NEW YORK
From 04-MAY-18 19:40:00 to 04-MAY-18 19:40:00 (EST-5)
Location: SWAN LAKE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds blew down trees and wires.