An upper level disturbance ahead of an approaching cold front moved across a moderately unstable air mass across northern NY on the afternoon and evening of August 4th. Scattered thunderstorms developed with a few isolated producing damaging winds and lightning.

Thunderstorm Wind in ESSEX, NEW YORK
From 04-AUG-17 18:03:00 to 04-AUG-17 18:03:00 (EST-5)
Location: AUSABLE FORKS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

Tree down on utility lines caused by thunderstorm winds.

Thunderstorm Wind in ST. LAWRENCE, NEW YORK
From 04-AUG-17 18:30:00 to 04-AUG-17 18:30:00 (EST-5)
Location: MORLEY
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

Trees down on utility lines caused by thunderstorm winds.

Thunderstorm Wind in ESSEX, NEW YORK
From 04-AUG-17 17:45:00 to 04-AUG-17 17:45:00 (EST-5)
Location: BLOOMINGDALE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

Tree down on utility lines caused by thunderstorm winds on Moose Pond road.

Thunderstorm Wind in ST. LAWRENCE, NEW YORK
From 04-AUG-17 18:49:00 to 04-AUG-17 18:49:00 (EST-5)
Location: NORFOLK
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

Tree down on utility lines caused by thunderstorm winds.

Lightning in ST. LAWRENCE, NEW YORK
From 04-AUG-17 12:08:00 to 04-AUG-17 12:08:00 (EST-5)
Location: POTSDAM
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Lightning started a tree fire in Potsdam.

Lightning in ST. LAWRENCE, NEW YORK
From 04-AUG-17 11:48:00 to 04-AUG-17 11:48:00 (EST-5)
Location: CANTON
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Lightning started a tree fire in Canton.

Hail in ESSEX, NEW YORK
From 04-AUG-17 17:40:00 to 04-AUG-17 17:40:00 (EST-5)
Location: LAKE PLACID
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Dime size hail reported.

Thunderstorm Wind in ST. LAWRENCE, NEW YORK
From 04-AUG-17 12:08:00 to 04-AUG-17 12:08:00 (EST-5)
Location: HANNAWA FALLS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree down on utility lines caused by thunderstorm winds.

Thunderstorm Wind in FRANKLIN, NEW YORK
From 04-AUG-17 13:36:00 to 04-AUG-17 13:36:00 (EST-5)
Location: BURKE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tree down on utility lines causing power pole to snap.

Thunderstorm Wind in ST. LAWRENCE, NEW YORK
From 04-AUG-17 15:32:00 to 04-AUG-17 15:32:00 (EST-5)
Location: NORTH HAMMOND
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Tree down on utility lines caused by thunderstorm winds.

Thunderstorm Wind in ST. LAWRENCE, NEW YORK
From 04-AUG-17 15:38:00 to 04-AUG-17 15:38:00 (EST-5)
Location: BRIER HILL
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Tree down on utility lines caused by thunderstorm winds on Sand street at Ireland road.

Thunderstorm Wind in ST. LAWRENCE, NEW YORK
From 04-AUG-17 15:43:00 to 04-AUG-17 15:43:00 (EST-5)
Location: MORRISTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tree down on utility lines caused by thunderstorm winds.

Thunderstorm Wind in ST. LAWRENCE, NEW YORK
From 04-AUG-17 15:43:00 to 04-AUG-17 15:43:00 (EST-5)
Location: MORRISTOWN
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Tree down on utility lines caused by thunderstorm winds.

Thunderstorm Wind in ESSEX, NEW YORK
From 04-AUG-17 17:54:00 to 04-AUG-17 17:54:00 (EST-5)
Location: UPPER JAY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees down on utility lines on Route 9 near Jay town line.