Showers and thunderstorms developed ahead of a surface cold front that was dropping southeast through the Great Lakes region. An upper level low across eastern Ontario and western Quebec moved east during the afternoon. This upper level low spread cooler temperatures aloft and an area of enhanced mid-level winds with this cold front. This aided in severe thunderstorm development with both large hail and damaging winds.

Hail in SENECA, NEW YORK
From 17-JUL-10 12:24:00 to 17-JUL-10 12:24:00 (EST-5)
Location: TYRE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CAYUGA, NEW YORK
From 17-JUL-10 12:35:00 to 17-JUL-10 12:35:00 (EST-5)
Location: THROOPSVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ONONDAGA, NEW YORK
From 17-JUL-10 13:17:00 to 17-JUL-10 13:17:00 (EST-5)
Location: SOUTH BAY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OTSEGO, NEW YORK
From 17-JUL-10 14:59:00 to 17-JUL-10 14:59:00 (EST-5)
Location: MT VISION
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DELAWARE, NEW YORK
From 17-JUL-10 15:20:00 to 17-JUL-10 15:20:00 (EST-5)
Location: DAVENPORT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in DELAWARE, NEW YORK
From 17-JUL-10 15:20:00 to 17-JUL-10 15:20:00 (EST-5)
Location: DAVENPORT
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down and a hay wagon was blown over.

Thunderstorm Wind in MADISON, NEW YORK
From 17-JUL-10 13:45:00 to 17-JUL-10 13:45:00 (EST-5)
Location: DE RUYTER
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: County Official

Poles and wires were blown down at the corner of Dugway Road and State Route 13.

Thunderstorm Wind in MADISON, NEW YORK
From 17-JUL-10 13:55:00 to 17-JUL-10 13:55:00 (EST-5)
Location: EATON
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees, poles and wires were blown down on the corner of Bradley Brook Road and State Route 26.

Thunderstorm Wind in MADISON, NEW YORK
From 17-JUL-10 14:00:00 to 17-JUL-10 14:00:00 (EST-5)
Location: LEBANON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires were blown down along Bradley Brook Road.

Thunderstorm Wind in MADISON, NEW YORK
From 17-JUL-10 19:55:00 to 17-JUL-10 19:55:00 (EST-5)
Location: LEBANON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several trees and wires were blown down.

Hail in CAYUGA, NEW YORK
From 17-JUL-10 12:22:00 to 17-JUL-10 12:22:00 (EST-5)
Location: MONTEZUMA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in ONONDAGA, NEW YORK
From 17-JUL-10 13:30:00 to 17-JUL-10 13:30:00 (EST-5)
Location: CICERO CENTER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

High winds were reported from a marina on the south shore of Oneida Lake.

Thunderstorm Wind in ONEIDA, NEW YORK
From 17-JUL-10 17:09:00 to 17-JUL-10 17:09:00 (EST-5)
Location: ORISKANY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees and limbs were blown down.

Thunderstorm Wind in ONONDAGA, NEW YORK
From 17-JUL-10 13:40:00 to 17-JUL-10 13:40:00 (EST-5)
Location: FABIUS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Large tree limbs and wires were blown down on Berry Road.

Thunderstorm Wind in MADISON, NEW YORK
From 17-JUL-10 21:40:00 to 17-JUL-10 21:40:00 (EST-5)
Location: NORTH BROOKFIELD
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires were blown down.

Thunderstorm Wind in OTSEGO, NEW YORK
From 17-JUL-10 14:48:00 to 17-JUL-10 14:48:00 (EST-5)
Location: LAURENS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees were blown down in the town of Laurens. One tree fell on a golf cart, injuring one person.

Thunderstorm Wind in OTSEGO, NEW YORK
From 17-JUL-10 15:00:00 to 17-JUL-10 15:00:00 (EST-5)
Location: HARTWICK
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down in Hartwick.

Thunderstorm Wind in ONEIDA, NEW YORK
From 17-JUL-10 17:49:00 to 17-JUL-10 17:49:00 (EST-5)
Location: ORISKANY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees and limbs were blown down.

Hail in ONEIDA, NEW YORK
From 17-JUL-10 17:30:00 to 17-JUL-10 17:30:00 (EST-5)
Location: ROME
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHENANGO, NEW YORK
From 17-JUL-10 21:04:00 to 17-JUL-10 21:04:00 (EST-5)
Location: MC DONOUGH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail covered the sidewalk. The size ranged from dime to quarter size.

Hail in CHENANGO, NEW YORK
From 17-JUL-10 21:04:00 to 17-JUL-10 21:04:00 (EST-5)
Location: MC DONOUGH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OTSEGO, NEW YORK
From 17-JUL-10 21:13:00 to 17-JUL-10 21:13:00 (EST-5)
Location: MARYLAND
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy rain fell and hail ranged from dime to penny size.

Hail in OTSEGO, NEW YORK
From 17-JUL-10 21:13:00 to 17-JUL-10 21:13:00 (EST-5)
Location: WORCESTER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DELAWARE, NEW YORK
From 17-JUL-10 21:55:00 to 17-JUL-10 21:55:00 (EST-5)
Location: ROXBURY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Dime to penny size hail was reported.

Thunderstorm Wind in MADISON, NEW YORK
From 17-JUL-10 20:08:00 to 17-JUL-10 20:08:00 (EST-5)
Location: BROOKFIELD
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several trees, poles and wires were blown down.

Thunderstorm Wind in CHENANGO, NEW YORK
From 17-JUL-10 14:15:00 to 17-JUL-10 14:15:00 (EST-5)
Location: SMYRNA
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

Trees and wires were blown down.

Thunderstorm Wind in CHENANGO, NEW YORK
From 17-JUL-10 14:23:00 to 17-JUL-10 14:23:00 (EST-5)
Location: SHERBURNE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

Trees and wires were blown down.

Thunderstorm Wind in CHENANGO, NEW YORK
From 17-JUL-10 14:30:00 to 17-JUL-10 14:30:00 (EST-5)
Location: NEW BERLIN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Trees and wires were blown down.

Thunderstorm Wind in CHENANGO, NEW YORK
From 17-JUL-10 20:15:00 to 17-JUL-10 20:15:00 (EST-5)
Location: SMYRNA
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

Trees and wires were blown down.

Thunderstorm Wind in CHENANGO, NEW YORK
From 17-JUL-10 20:25:00 to 17-JUL-10 20:25:00 (EST-5)
Location: COLUMBUS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

Trees and wires were blown down.

Thunderstorm Wind in CHENANGO, NEW YORK
From 17-JUL-10 20:30:00 to 17-JUL-10 20:30:00 (EST-5)
Location: NEW BERLIN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

Trees and wires were blown down.

Thunderstorm Wind in OTSEGO, NEW YORK
From 17-JUL-10 20:15:00 to 17-JUL-10 20:15:00 (EST-5)
Location: EDMESTON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

Trees and wires were blown down.

Thunderstorm Wind in OTSEGO, NEW YORK
From 17-JUL-10 20:20:00 to 17-JUL-10 20:20:00 (EST-5)
Location: MORRIS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

Trees and wires were blown down.

Thunderstorm Wind in OTSEGO, NEW YORK
From 17-JUL-10 15:06:00 to 17-JUL-10 15:06:00 (EST-5)
Location: MARYLAND
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large branches were broken by thunderstorm winds.

Funnel Cloud in DELAWARE, NEW YORK
From 17-JUL-10 15:15:00 to 17-JUL-10 15:15:00 (EST-5)
Location: DAVENPORT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in OTSEGO, NEW YORK
From 17-JUL-10 20:50:00 to 17-JUL-10 20:50:00 (EST-5)
Location: LAURENS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires were blown down.