A frontal boundary sagged south across central New York and the atmosphere became moderately unstable south of the front. Showers and thunderstorms developed, with some storms producing large hail and damaging winds.

Hail in BROOME, NEW YORK
From 27-MAY-11 17:37:00 to 27-MAY-11 17:37:00 (EST-5)
Location: TRACY CREEK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BROOME, NEW YORK
From 27-MAY-11 17:42:00 to 27-MAY-11 17:42:00 (EST-5)
Location: VESTAL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail covered the ground.

Hail in BROOME, NEW YORK
From 27-MAY-11 17:44:00 to 27-MAY-11 17:44:00 (EST-5)
Location: TWIN ORCHARD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BROOME, NEW YORK
From 27-MAY-11 17:51:00 to 27-MAY-11 17:51:00 (EST-5)
Location: STELLA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail fell near Floral Park.

Hail in BROOME, NEW YORK
From 27-MAY-11 18:00:00 to 27-MAY-11 18:00:00 (EST-5)
Location: ENDWELL
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OTSEGO, NEW YORK
From 27-MAY-11 18:33:00 to 27-MAY-11 18:33:00 (EST-5)
Location: COOPERSTOWN ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHEMUNG, NEW YORK
From 27-MAY-11 18:45:00 to 27-MAY-11 18:45:00 (EST-5)
Location: ELMIRA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OTSEGO, NEW YORK
From 27-MAY-11 18:50:00 to 27-MAY-11 18:50:00 (EST-5)
Location: CHERRY VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHENANGO, NEW YORK
From 27-MAY-11 19:40:00 to 27-MAY-11 19:40:00 (EST-5)
Location: EARLVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ONEIDA, NEW YORK
From 27-MAY-11 20:20:00 to 27-MAY-11 20:20:00 (EST-5)
Location: STOCKWELL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MADISON, NEW YORK
From 27-MAY-11 21:00:00 to 27-MAY-11 21:00:00 (EST-5)
Location: NORTH BROOKFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in TOMPKINS, NEW YORK
From 27-MAY-11 19:10:00 to 27-MAY-11 19:10:00 (EST-5)
Location: SLATERVILLE SPGS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OTSEGO, NEW YORK
From 27-MAY-11 21:08:00 to 27-MAY-11 21:08:00 (EST-5)
Location: SOUTH EDMESTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OTSEGO, NEW YORK
From 27-MAY-11 21:05:00 to 27-MAY-11 21:05:00 (EST-5)
Location: PITTSFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BROOME, NEW YORK
From 27-MAY-11 17:30:00 to 27-MAY-11 17:30:00 (EST-5)
Location: STELLA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BROOME, NEW YORK
From 27-MAY-11 17:27:00 to 27-MAY-11 17:27:00 (EST-5)
Location: TRACY CREEK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BROOME, NEW YORK
From 27-MAY-11 17:23:00 to 27-MAY-11 17:23:00 (EST-5)
Location: TRACY CREEK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CHENANGO, NEW YORK
From 27-MAY-11 19:10:00 to 27-MAY-11 19:10:00 (EST-5)
Location: PHARSALIA
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down on County Road 10.

Hail in OTSEGO, NEW YORK
From 27-MAY-11 18:27:00 to 27-MAY-11 18:27:00 (EST-5)
Location: COOPERSTOWN ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CHEMUNG, NEW YORK
From 27-MAY-11 18:30:00 to 27-MAY-11 18:30:00 (EST-5)
Location: PINE CITY
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees were blown down and homes were damaged. Twenty-five homes suffered minor damage, and one house had substantial damage.

Hail in OTSEGO, NEW YORK
From 27-MAY-11 21:03:00 to 27-MAY-11 21:03:00 (EST-5)
Location: PITTSFIELD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public