With a warm and moist airmass in place over the region, thunderstorms developed along lake breezes during the afternoon and evening.  The persistent storms were prolific hail producers���not only in size but quantity. At times it was reported the hail completely covered the ground. The largest stones approached two inches, however most of the hail exceeded one-inch in diameter.  Hail was reported near Lake Bluff, Port Bay, Red Creek, Victory, Martville, West Monroe and Hastings, to name a few. While most of the severe reports were of large hail, a few storms did produce damaging winds with trees and wires reported down near Ira, Victory, Phoenix, Wellsville, Adams Center and Batavia.

Hail in CAYUGA, NEW YORK
From 22-MAY-13 14:46:00 to 22-MAY-13 14:46:00 (EST-5)
Location: NORTH VICTORY
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in JEFFERSON, NEW YORK
From 22-MAY-13 21:18:00 to 22-MAY-13 21:18:00 (EST-5)
Location: ADAMS CENTER
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down by thunderstorm winds at the intersection of Fuller and Caird Rds.

Hail in OSWEGO, NEW YORK
From 22-MAY-13 18:00:00 to 22-MAY-13 18:00:00 (EST-5)
Location: CENTRAL SQUARE
Magnitude: 0.75 
Reported by: Amateur Radio

Hail in OSWEGO, NEW YORK
From 22-MAY-13 18:07:00 to 22-MAY-13 18:07:00 (EST-5)
Location: MALLORY
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Hail in OSWEGO, NEW YORK
From 22-MAY-13 18:15:00 to 22-MAY-13 18:15:00 (EST-5)
Location: WEST MONROE
Magnitude: 1.50 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Hail in OSWEGO, NEW YORK
From 22-MAY-13 18:15:00 to 22-MAY-13 18:15:00 (EST-5)
Location: HASTINGS
Magnitude: 1.25 
Property damage: 10.00K
Reported by: Public

Hail in WAYNE, NEW YORK
From 22-MAY-13 14:18:00 to 22-MAY-13 14:18:00 (EST-5)
Location: CUMMINSVILLE
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Hail in CAYUGA, NEW YORK
From 22-MAY-13 14:52:00 to 22-MAY-13 14:52:00 (EST-5)
Location: NORTH VICTORY
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CAYUGA, NEW YORK
From 22-MAY-13 14:46:00 to 22-MAY-13 14:46:00 (EST-5)
Location: NORTH VICTORY
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds broke trees limbs and flipped heavy, wooden furniture.

Hail in OSWEGO, NEW YORK
From 22-MAY-13 15:00:00 to 22-MAY-13 15:00:00 (EST-5)
Location: CAINS CORNER
Magnitude: 0.75 
Reported by: Public

Thunderstorm Wind in CAYUGA, NEW YORK
From 22-MAY-13 15:00:00 to 22-MAY-13 15:00:00 (EST-5)
Location: IRA
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcent reported trees and wires down.

Thunderstorm Wind in GENESEE, NEW YORK
From 22-MAY-13 19:07:00 to 22-MAY-13 19:07:00 (EST-5)
Location: BATAVIA GENESEE ARPT
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency Management reported trees down by thunderstorm winds.

Hail in OSWEGO, NEW YORK
From 22-MAY-13 18:19:00 to 22-MAY-13 18:19:00 (EST-5)
Location: PANTHER LAKE
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Hail in OSWEGO, NEW YORK
From 22-MAY-13 15:21:00 to 22-MAY-13 15:21:00 (EST-5)
Location: HINMANSVILLE
Magnitude: 0.75 
Reported by: Public

Hail in OSWEGO, NEW YORK
From 22-MAY-13 15:23:00 to 22-MAY-13 15:23:00 (EST-5)
Location: HINMANSVILLE
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in OSWEGO, NEW YORK
From 22-MAY-13 15:30:00 to 22-MAY-13 15:30:00 (EST-5)
Location: PHOENIX
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Photos of downed trees were posted on Social Media.

Hail in OSWEGO, NEW YORK
From 22-MAY-13 15:43:00 to 22-MAY-13 15:43:00 (EST-5)
Location: CENTRAL SQUARE
Magnitude: 0.88 
Reported by: Social Media

Hail in WAYNE, NEW YORK
From 22-MAY-13 14:36:00 to 22-MAY-13 14:36:00 (EST-5)
Location: RED CREEK
Magnitude: 1.75 
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Post Office

Hail in WAYNE, NEW YORK
From 22-MAY-13 14:28:00 to 22-MAY-13 14:28:00 (EST-5)
Location: NORTH WOLCOTT
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Hail in CAYUGA, NEW YORK
From 22-MAY-13 14:44:00 to 22-MAY-13 14:44:00 (EST-5)
Location: NORTH VICTORY
Magnitude: 0.88 
Reported by: Trained Spotter

Hail in OSWEGO, NEW YORK
From 22-MAY-13 17:35:00 to 22-MAY-13 17:35:00 (EST-5)
Location: FULTON
Magnitude: 0.75 
Reported by: Trained Spotter

Hail in CAYUGA, NEW YORK
From 22-MAY-13 17:07:00 to 22-MAY-13 17:07:00 (EST-5)
Location: NORTH VICTORY
Magnitude: 0.88 
Reported by: Trained Spotter

Thunderstorm Wind in ALLEGANY, NEW YORK
From 22-MAY-13 17:38:00 to 22-MAY-13 17:38:00 (EST-5)
Location: WELLSVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

The television media reported trees downed by thunderstorm winds.

Hail in OSWEGO, NEW YORK
From 22-MAY-13 17:40:00 to 22-MAY-13 17:40:00 (EST-5)
Location: SUTTONS CORNERS
Magnitude: 0.88 
Reported by: COOP Observer