A deep upper level low pressure system shifted east from the mid-Mississippi Valley region through the afternoon and evening.  Broad southwest flow ahead of the system allowed temperatures to warm into the lower 80s, and with moderate instability, numerous showers and thunderstorms developed. Many reports of large hail and damaging winds occurred in central New York.

Hail in CHEMUNG, NEW YORK
From 26-MAY-11 15:50:00 to 26-MAY-11 15:50:00 (EST-5)
Location: SOUTHPORT
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Trees and power lines were down in Southport.

Hail in CORTLAND, NEW YORK
From 26-MAY-11 15:50:00 to 26-MAY-11 15:50:00 (EST-5)
Location: HOMER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHEMUNG, NEW YORK
From 26-MAY-11 15:54:00 to 26-MAY-11 15:54:00 (EST-5)
Location: ELMIRA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ONONDAGA, NEW YORK
From 26-MAY-11 16:10:00 to 26-MAY-11 16:10:00 (EST-5)
Location: TULLY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ONONDAGA, NEW YORK
From 26-MAY-11 16:11:00 to 26-MAY-11 16:11:00 (EST-5)
Location: TULLY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ONONDAGA, NEW YORK
From 26-MAY-11 16:17:00 to 26-MAY-11 16:17:00 (EST-5)
Location: TULLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ONONDAGA, NEW YORK
From 26-MAY-11 16:19:00 to 26-MAY-11 16:19:00 (EST-5)
Location: POMPEY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in TOMPKINS, NEW YORK
From 26-MAY-11 16:20:00 to 26-MAY-11 16:20:00 (EST-5)
Location: NEWFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in TOMPKINS, NEW YORK
From 26-MAY-11 16:26:00 to 26-MAY-11 16:26:00 (EST-5)
Location: NEWFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in TIOGA, NEW YORK
From 26-MAY-11 16:30:00 to 26-MAY-11 16:30:00 (EST-5)
Location: LITCHFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CHEMUNG, NEW YORK
From 26-MAY-11 15:50:00 to 26-MAY-11 15:50:00 (EST-5)
Location: SOUTHPORT
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Trees and wires were blown down.

Thunderstorm Wind in CHEMUNG, NEW YORK
From 26-MAY-11 16:01:00 to 26-MAY-11 16:01:00 (EST-5)
Location: BREESPORT
Magnitude: 50.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A small shed was damaged, and shingles were torn off a house.

Hail in ONEIDA, NEW YORK
From 26-MAY-11 16:55:00 to 26-MAY-11 16:55:00 (EST-5)
Location: DURHAMVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MADISON, NEW YORK
From 26-MAY-11 16:43:00 to 26-MAY-11 16:43:00 (EST-5)
Location: CANASTOTA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ONEIDA, NEW YORK
From 26-MAY-11 16:43:00 to 26-MAY-11 16:43:00 (EST-5)
Location: LEE CENTER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BROOME, NEW YORK
From 26-MAY-11 20:00:00 to 26-MAY-11 20:00:00 (EST-5)
Location: VESTAL
Magnitude: 2.00 
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Public

Major damage was reported to many vehicles due to large hail. One large car dealership in Vestal had over 500 vehicles that received at least minor damage from the hail. Forty mile per hour winds were also reported.

Thunderstorm Wind in CHEMUNG, NEW YORK
From 26-MAY-11 16:04:00 to 26-MAY-11 16:04:00 (EST-5)
Location: ELMIRA
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires were blown down.

Hail in MADISON, NEW YORK
From 26-MAY-11 16:43:00 to 26-MAY-11 16:43:00 (EST-5)
Location: CAMPBELLS CORNERS
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in TIOGA, NEW YORK
From 26-MAY-11 17:25:00 to 26-MAY-11 17:25:00 (EST-5)
Location: APALACHIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm Wind in DELAWARE, NEW YORK
From 26-MAY-11 17:20:00 to 26-MAY-11 17:20:00 (EST-5)
Location: GRAND GORGE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Trees and wires were blown down.

Hail in BROOME, NEW YORK
From 26-MAY-11 17:27:00 to 26-MAY-11 17:27:00 (EST-5)
Location: WEST ENDICOTT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BROOME, NEW YORK
From 26-MAY-11 17:50:00 to 26-MAY-11 17:50:00 (EST-5)
Location: STELLA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in TIOGA, NEW YORK
From 26-MAY-11 18:30:00 to 26-MAY-11 18:30:00 (EST-5)
Location: LITCHFIELD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in TIOGA, NEW YORK
From 26-MAY-11 18:40:00 to 26-MAY-11 18:40:00 (EST-5)
Location: BARTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CHEMUNG, NEW YORK
From 26-MAY-11 19:28:00 to 26-MAY-11 19:28:00 (EST-5)
Location: ELMIRA
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous mobile homes were damaged.

Hail in CORTLAND, NEW YORK
From 26-MAY-11 19:30:00 to 26-MAY-11 19:30:00 (EST-5)
Location: MARATHON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CHEMUNG, NEW YORK
From 26-MAY-11 19:59:00 to 26-MAY-11 19:59:00 (EST-5)
Location: LOWMAN
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Trees were blown down across Interior Road at the Garner Hill Campground.

Hail in BROOME, NEW YORK
From 26-MAY-11 19:58:00 to 26-MAY-11 19:58:00 (EST-5)
Location: VESTAL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BROOME, NEW YORK
From 26-MAY-11 20:00:00 to 26-MAY-11 20:00:00 (EST-5)
Location: STELLA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BROOME, NEW YORK
From 26-MAY-11 20:05:00 to 26-MAY-11 20:05:00 (EST-5)
Location: BINGHAMTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BROOME, NEW YORK
From 26-MAY-11 20:14:00 to 26-MAY-11 20:14:00 (EST-5)
Location: STELLA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BROOME, NEW YORK
From 26-MAY-11 20:15:00 to 26-MAY-11 20:15:00 (EST-5)
Location: BINGHAMTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CHEMUNG, NEW YORK
From 26-MAY-11 19:25:00 to 26-MAY-11 19:25:00 (EST-5)
Location: WELLSBURG
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A roof was blown off a trailer, and attached carports were ripped away in Carriage Estates.

Thunderstorm Wind in CHEMUNG, NEW YORK
From 26-MAY-11 19:25:00 to 26-MAY-11 19:25:00 (EST-5)
Location: LOWMAN
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees and wires were blown down in Baldwin and Chemung.

Thunderstorm Wind in CHEMUNG, NEW YORK
From 26-MAY-11 19:25:00 to 26-MAY-11 19:25:00 (EST-5)
Location: WELLSBURG
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A trailer was overturned and flipped on it's side in Westover Hills.

Hail in ONEIDA, NEW YORK
From 26-MAY-11 20:49:00 to 26-MAY-11 20:49:00 (EST-5)
Location: ROME
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CORTLAND, NEW YORK
From 26-MAY-11 20:05:00 to 26-MAY-11 20:05:00 (EST-5)
Location: MARATHON
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down with numerous power outages from Marathon to Cincinnatus.

Hail in SULLIVAN, NEW YORK
From 26-MAY-11 21:15:00 to 26-MAY-11 21:15:00 (EST-5)
Location: LOCH SHELDRAKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in TIOGA, NEW YORK
From 26-MAY-11 19:43:00 to 26-MAY-11 19:43:00 (EST-5)
Location: OWEGO
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Many trees were blown down in Hickories Park.

Thunderstorm Wind in CHENANGO, NEW YORK
From 26-MAY-11 20:02:00 to 26-MAY-11 20:02:00 (EST-5)
Location: GREENE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down.

Thunderstorm Wind in CHENANGO, NEW YORK
From 26-MAY-11 20:06:00 to 26-MAY-11 20:06:00 (EST-5)
Location: MC DONOUGH
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Many trees were blown down.

Thunderstorm Wind in BROOME, NEW YORK
From 26-MAY-11 20:05:00 to 26-MAY-11 20:05:00 (EST-5)
Location: LISLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees and wires were blown down all over town.

Thunderstorm Wind in TIOGA, NEW YORK
From 26-MAY-11 19:50:00 to 26-MAY-11 19:50:00 (EST-5)
Location: WEST NEWARK
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were blown down in town.

Hail in MADISON, NEW YORK
From 26-MAY-11 18:15:00 to 26-MAY-11 18:15:00 (EST-5)
Location: LAKEPORT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in BROOME, NEW YORK
From 26-MAY-11 20:00:00 to 26-MAY-11 20:00:00 (EST-5)
Location: MAINE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and wires were blown down.

Thunderstorm Wind in BROOME, NEW YORK
From 26-MAY-11 19:59:00 to 26-MAY-11 19:59:00 (EST-5)
Location: (BGM)BINGHAMTON ARPT
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in DELAWARE, NEW YORK
From 26-MAY-11 21:00:00 to 26-MAY-11 21:00:00 (EST-5)
Location: DELHI
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were blown down on a house.

Thunderstorm Wind in DELAWARE, NEW YORK
From 26-MAY-11 21:00:00 to 26-MAY-11 21:00:00 (EST-5)
Location: BOVINA CENTER
Magnitude: 60.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree fell on a car, with people trapped inside.

Thunderstorm Wind in DELAWARE, NEW YORK
From 26-MAY-11 20:50:00 to 26-MAY-11 20:50:00 (EST-5)
Location: WALTON
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were blown down in Walton.

Thunderstorm Wind in TIOGA, NEW YORK
From 26-MAY-11 20:00:00 to 26-MAY-11 20:00:00 (EST-5)
Location: OWEGO
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in BROOME, NEW YORK
From 26-MAY-11 20:04:00 to 26-MAY-11 20:04:00 (EST-5)
Location: KATTLEVILLE
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHEMUNG, NEW YORK
From 26-MAY-11 15:46:00 to 26-MAY-11 15:46:00 (EST-5)
Location: PINE CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in STEUBEN, NEW YORK
From 25-MAY-11 23:05:00 to 25-MAY-11 23:05:00 (EST-5)
Location: WAYLAND
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Trees knocked down by thunderstorm winds.

Thunderstorm Wind in STEUBEN, NEW YORK
From 25-MAY-11 23:45:00 to 25-MAY-11 23:45:00 (EST-5)
Location: GANG MILLS
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Telephone pole snapped by thunderstorm winds.

Thunderstorm Wind in CHEMUNG, NEW YORK
From 26-MAY-11 15:50:00 to 26-MAY-11 15:50:00 (EST-5)
Location: ELMIRA
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Several large trees were blown down in Brand Park and on Spalding Street in Elmira.

Hail in TOMPKINS, NEW YORK
From 26-MAY-11 16:20:00 to 26-MAY-11 16:20:00 (EST-5)
Location: NEWFIELD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in TIOGA, NEW YORK
From 26-MAY-11 19:38:00 to 26-MAY-11 19:38:00 (EST-5)
Location: OWEGO
Magnitude: 60.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down county-wide with numerous power outages.

Hail in BROOME, NEW YORK
From 26-MAY-11 19:55:00 to 26-MAY-11 19:55:00 (EST-5)
Location: BINGHAMTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in SULLIVAN, NEW YORK
From 26-MAY-11 21:20:00 to 26-MAY-11 21:20:00 (EST-5)
Location: MONTICELLO
Magnitude: 60.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees were blown down in the central part of the county.

Thunderstorm Wind in TIOGA, NEW YORK
From 26-MAY-11 00:45:00 to 26-MAY-11 00:45:00 (EST-5)
Location: CANDOR
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Employee

Trees and wires were blown down throughout town.

Thunderstorm Wind in TIOGA, NEW YORK
From 26-MAY-11 01:00:00 to 26-MAY-11 01:00:00 (EST-5)
Location: CAMPVILLE
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Employee

Trees and wires were blown down from Campville to Owego. Route 17C was closed.

Hail in CHEMUNG, NEW YORK
From 26-MAY-11 14:42:00 to 26-MAY-11 14:42:00 (EST-5)
Location: PINE CITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in TIOGA, NEW YORK
From 26-MAY-11 20:30:00 to 26-MAY-11 20:30:00 (EST-5)
Location: OWEGO
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Trees were blown down and snapped off.

Thunderstorm Wind in BROOME, NEW YORK
From 26-MAY-11 20:35:00 to 26-MAY-11 20:35:00 (EST-5)
Location: SANFORD
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Trees were blown down on State Route 41 and Old Route 17. Power was out to 600 customers.

Thunderstorm Wind in BROOME, NEW YORK
From 26-MAY-11 19:55:00 to 26-MAY-11 19:55:00 (EST-5)
Location: PARK TERRACE
Magnitude: 60.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees were blown down on Pennsylvania and Conklin Avenues.

Thunderstorm Wind in CHEMUNG, NEW YORK
From 26-MAY-11 15:55:00 to 26-MAY-11 15:55:00 (EST-5)
Location: ELMIRA
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Numerous tree limbs were blown down.

Hail in SULLIVAN, NEW YORK
From 26-MAY-11 21:33:00 to 26-MAY-11 21:33:00 (EST-5)
Location: CALLICOON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CORTLAND, NEW YORK
From 26-MAY-11 16:00:00 to 26-MAY-11 16:00:00 (EST-5)
Location: HOMER
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CHENANGO, NEW YORK
From 26-MAY-11 20:02:00 to 26-MAY-11 20:02:00 (EST-5)
Location: SMITHVILLE FLATS
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were blown down.