A surface warm front lifted north through New York state on Tuesday, June 17th.  This brought unstable air into the region and numerous severe thunderstorms developed during the afternoon and evening hours.

Hail in STEUBEN, NEW YORK
From 17-JUN-14 14:30:00 to 17-JUN-14 14:30:00 (EST-5)
Location: PRATTSBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in STEUBEN, NEW YORK
From 17-JUN-14 14:30:00 to 17-JUN-14 14:30:00 (EST-5)
Location: INGLESIDE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in YATES, NEW YORK
From 17-JUN-14 14:30:00 to 17-JUN-14 14:30:00 (EST-5)
Location: ITALY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in STEUBEN, NEW YORK
From 17-JUN-14 14:40:00 to 17-JUN-14 14:40:00 (EST-5)
Location: PRATTSBURG
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in YATES, NEW YORK
From 17-JUN-14 14:45:00 to 17-JUN-14 14:45:00 (EST-5)
Location: BRANCHPORT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in YATES, NEW YORK
From 17-JUN-14 15:06:00 to 17-JUN-14 15:06:00 (EST-5)
Location: PENN YAN ARPT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in YATES, NEW YORK
From 17-JUN-14 15:15:00 to 17-JUN-14 15:15:00 (EST-5)
Location: LAKEMONT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in YATES, NEW YORK
From 17-JUN-14 15:15:00 to 17-JUN-14 15:15:00 (EST-5)
Location: LAKEMONT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ONONDAGA, NEW YORK
From 17-JUN-14 20:50:00 to 17-JUN-14 20:50:00 (EST-5)
Location: PARK HILL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CORTLAND, NEW YORK
From 17-JUN-14 21:43:00 to 17-JUN-14 21:43:00 (EST-5)
Location: CORTLAND
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Lightning in CHENANGO, NEW YORK
From 17-JUN-14 22:15:00 to 17-JUN-14 22:15:00 (EST-5)
Location: PRESTON
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

A lightning strike hit a church steeple.

Lightning in CHENANGO, NEW YORK
From 17-JUN-14 22:20:00 to 17-JUN-14 22:20:00 (EST-5)
Location: PLYMOUTH
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A lightning strike hit a tree which then fell through a house.

Lightning in CHENANGO, NEW YORK
From 17-JUN-14 22:20:00 to 17-JUN-14 22:20:00 (EST-5)
Location: SMYRNA
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A lightning strike set a house on fire on Bliven-Coye Hill Road.

Tornado in ONEIDA, NEW YORK
From 17-JUN-14 21:03:00 to 17-JUN-14 21:03:00 (EST-5)
Location: VERONA
Tornado F-scale: EF1
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm produced EF1 tornado damage in Verona.  This tornado had a maximum path width of 250 yards and a path length of 11 miles.  It produced estimated wind speeds of 100 MPH and damaged several homes and buildings. The tornado also destroyed several sheds and a barn with signs and fencing taken out by the storm.  The tornado resulted in a chaotic and chopped up pattern along its long and narrow path.

Thunderstorm Wind in CAYUGA, NEW YORK
From 17-JUN-14 20:23:00 to 17-JUN-14 20:23:00 (EST-5)
Location: MONTEZUMA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A large tree was blown down.

Thunderstorm Wind in CAYUGA, NEW YORK
From 17-JUN-14 20:32:00 to 17-JUN-14 20:32:00 (EST-5)
Location: AUBURN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Multiple trees were blown down on Lake Avenue.

Thunderstorm Wind in ONONDAGA, NEW YORK
From 17-JUN-14 20:34:00 to 17-JUN-14 20:34:00 (EST-5)
Location: MARCELLUS
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree was blown down on the top of two cars.

Thunderstorm Wind in ONONDAGA, NEW YORK
From 17-JUN-14 20:40:00 to 17-JUN-14 20:40:00 (EST-5)
Location: LEWISTON MANOR
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Lines were blown down in town.

Thunderstorm Wind in YATES, NEW YORK
From 17-JUN-14 20:48:00 to 17-JUN-14 20:48:00 (EST-5)
Location: KEUKA PARK
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: State Official

Trees and lines were blown down in town and also the towns of Jerusalem and Milo.

Thunderstorm Wind in ONEIDA, NEW YORK
From 17-JUN-14 21:27:00 to 17-JUN-14 21:27:00 (EST-5)
Location: DEERFIELD
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Trees and powerlines were blown down.

Thunderstorm Wind in MADISON, NEW YORK
From 17-JUN-14 21:30:00 to 17-JUN-14 21:30:00 (EST-5)
Location: CANASTOTA
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and wires were blown down.

Thunderstorm Wind in TOMPKINS, NEW YORK
From 17-JUN-14 21:39:00 to 17-JUN-14 21:39:00 (EST-5)
Location: FREEVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

Multiple trees were blown down.

Thunderstorm Wind in TOMPKINS, NEW YORK
From 17-JUN-14 21:42:00 to 17-JUN-14 21:42:00 (EST-5)
Location: FREEVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Multiple trees were blown down.

Thunderstorm Wind in CHENANGO, NEW YORK
From 17-JUN-14 22:10:00 to 17-JUN-14 22:10:00 (EST-5)
Location: MC DONOUGH
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were blown down.

Thunderstorm Wind in CHENANGO, NEW YORK
From 17-JUN-14 22:30:00 to 17-JUN-14 22:30:00 (EST-5)
Location: PLYMOUTH
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down onto a house resulting in heavy damage on County Route 16.

Thunderstorm Wind in CHENANGO, NEW YORK
From 17-JUN-14 22:35:00 to 17-JUN-14 22:35:00 (EST-5)
Location: NORTH NORWICH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down on State Route 12.

Thunderstorm Wind in TOMPKINS, NEW YORK
From 17-JUN-14 21:38:00 to 17-JUN-14 21:38:00 (EST-5)
Location: DRYDEN
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in OTSEGO, NEW YORK
From 17-JUN-14 23:19:00 to 17-JUN-14 23:19:00 (EST-5)
Location: OTEGO
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Multiple trees were blown down.

Thunderstorm Wind in DELAWARE, NEW YORK
From 17-JUN-14 23:20:00 to 17-JUN-14 23:20:00 (EST-5)
Location: DELHI
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: COOP Observer

Trees were blown down.

Thunderstorm Wind in DELAWARE, NEW YORK
From 17-JUN-14 22:50:00 to 17-JUN-14 22:50:00 (EST-5)
Location: FRANKLIN
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were blown down.

Thunderstorm Wind in DELAWARE, NEW YORK
From 17-JUN-14 23:35:00 to 17-JUN-14 23:35:00 (EST-5)
Location: UNION GROVE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees were blown down in Little Pond Campground.

Thunderstorm Wind in TOMPKINS, NEW YORK
From 17-JUN-14 21:35:00 to 17-JUN-14 21:35:00 (EST-5)
Location: FREEVILLE
Magnitude: 69.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

This gust was measured by a roof top anemometer.

Thunderstorm Wind in DELAWARE, NEW YORK
From 17-JUN-14 23:05:00 to 17-JUN-14 23:05:00 (EST-5)
Location: HAMDEN
Magnitude: 78.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A line of thunderstorms produced a macroburst that extended from the Town of Hamden New York east to a few miles southeast of Delhi. The damage first appeared on Munn Road in Hamden and continued east for about nine miles close to Route 28 south of Delhi where it ended on Glen Burnie Road. The damage was confined to trees where in a few locations there were numerous trees uprooted and/or snapped. Most of the tree damage was to softwoods like pines, spruce, cherry and red maple.

Thunderstorm Wind in BROOME, NEW YORK
From 17-JUN-14 22:50:00 to 17-JUN-14 22:50:00 (EST-5)
Location: WHITNEY PT
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

Trees were blown down on Hemlock Hill and Kales Hill Roads.

Thunderstorm Wind in CHENANGO, NEW YORK
From 17-JUN-14 22:55:00 to 17-JUN-14 22:55:00 (EST-5)
Location: SMITHVILLE FLATS
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were blown down on County Route 3.