A passing cold front and mid level shortwave combined to produce severe thunderstorms across Southeast NY, with several reports of large hail and wind damage.

Thunderstorm Wind in SUFFOLK, NEW YORK
From 01-AUG-11 19:15:00 to 01-AUG-11 19:15:00 (EST-5)
Location: CALVERTON
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: NWS Employee

Large branches were reported down and a power pole damaged along County Route 58 near Applebee���s close to Calverton.

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 17:11:00 to 01-AUG-11 17:11:00 (EST-5)
Location: GREENBURGH
Magnitude: 1.75 
Reported by: Trained Spotter

Golf ball size hail was reported along I-87 near Greenburgh.

Thunderstorm Wind in SUFFOLK, NEW YORK
From 01-AUG-11 19:15:00 to 01-AUG-11 19:15:00 (EST-5)
Location: (FOK)WESTHAMPTON BCH
Magnitude: 54.00 MG
Reported by: ASOS

The ASOS at Westhampton Beach (KFOK) measured a peak wind gust of 54 knots.

Hail in QUEENS, NEW YORK
From 01-AUG-11 14:55:00 to 01-AUG-11 14:55:00 (EST-5)
Location: LITTLE NECK
Magnitude: 2.00 
Property damage: 1.00K
Reported by: Newspaper

Lime size hail damaged a car in the Glen Oaks section of Queens.

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:24:00 to 01-AUG-11 15:24:00 (EST-5)
Location: NEW HYDE PARK
Magnitude: 2.00 
Reported by: Trained Spotter

Multiple spotters reported lime sized hail in New Hyde Park.

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:30:00 to 01-AUG-11 15:30:00 (EST-5)
Location: EAST WILLISTON
Magnitude: 3.00 
Property damage: 100.00K
Reported by: Newspaper

A spotter measured hail 3 inches in diameter, along with other reports of tennis ball size hail. This hail damaged around 150 cars in New Hyde Park, including the shattering of multiple windshields.

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 17:04:00 to 01-AUG-11 17:04:00 (EST-5)
Location: WHITE PLAINS
Magnitude: 3.00 
Reported by: Trained Spotter

Large apple size (three inch) hail was reported in White Plains.

Hail in BRONX, NEW YORK
From 01-AUG-11 18:21:00 to 01-AUG-11 18:21:00 (EST-5)
Location: NEW YORK NORTHERN
Magnitude: 1.25 
Reported by: COOP Observer

Half-dollar size hail was reported by the Bronx Cooperative Observer.

Thunderstorm Wind in PUTNAM, NEW YORK
From 01-AUG-11 17:05:00 to 01-AUG-11 17:05:00 (EST-5)
Location: KENT CLIFFS
Magnitude: 52.00 EG
Property damage: 5.00K
Reported by: Trained Spotter

A tree fell on a car along the Taconic State Parkway in Kent.

Hail in ROCKLAND, NEW YORK
From 01-AUG-11 15:53:00 to 01-AUG-11 15:53:00 (EST-5)
Location: TOMKINS COVE
Magnitude: 1.25 
Reported by: Trained Spotter

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 17:23:00 to 01-AUG-11 17:23:00 (EST-5)
Location: PINE RIDGE ESTATES
Magnitude: 1.00 
Reported by: NWS Employee

Quarter size hail was reported in Rye Brook.

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 17:45:00 to 01-AUG-11 17:45:00 (EST-5)
Location: SCARSDALE
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 18:00:00 to 01-AUG-11 18:00:00 (EST-5)
Location: CHAPPAQUA
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in QUEENS, NEW YORK
From 01-AUG-11 18:36:00 to 01-AUG-11 18:36:00 (EST-5)
Location: BAYSIDE
Magnitude: 2.75 
Property damage: 3.00K
Reported by: Public

Baseball size hail was reported in the Bayside section of Queens. This hail was reported to have damaged some cars.

Thunderstorm Wind in SUFFOLK, NEW YORK
From 01-AUG-11 19:35:00 to 01-AUG-11 19:35:00 (EST-5)
Location: WESTHAMPTON
Magnitude: 52.00 EG
Property damage: 4.00K
Reported by: Fire Department/Rescue

Large branches were reported down throughout the Village of Westhampton, along with wires down on County Road 31.

Thunderstorm Wind in SUFFOLK, NEW YORK
From 01-AUG-11 18:57:00 to 01-AUG-11 18:57:00 (EST-5)
Location: BAITING HOLLOW
Magnitude: 52.00 EG
Property damage: 3.00K
Reported by: NWS Employee

A few trees and some tree limbs and large branches were reported down across the Hamlet.

Lightning in NASSAU, NEW YORK
From 01-AUG-11 15:15:00 to 01-AUG-11 15:15:00 (EST-5)
Location: EAST ROCKAWAY
Property damage: 1.00K
Reported by: Newspaper

Lightning struck a house on West Henrietta Avenue in Oceanside.

Thunderstorm Wind in ROCKLAND, NEW YORK
From 01-AUG-11 17:25:00 to 01-AUG-11 17:25:00 (EST-5)
Location: ROCKLAND LAKE
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Newspaper

Utility poles and power lines were reported down in Clarkstown.

Thunderstorm Wind in ROCKLAND, NEW YORK
From 01-AUG-11 17:20:00 to 01-AUG-11 17:20:00 (EST-5)
Location: NEW CITY
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Newspaper

A few trees and power lines were reported down in New City.

Hail in NASSAU, NEW YORK
From 01-AUG-11 14:55:00 to 01-AUG-11 14:55:00 (EST-5)
Location: LAKE SUCCES
Magnitude: 2.75 
Property damage: 15.00K
Reported by: Broadcast Media

Baseball size hail was reported around the Lakeville Road interchange with the Northern State Parkway. Multiple cars were reported to be damaged.

Thunderstorm Wind in WESTCHESTER, NEW YORK
From 01-AUG-11 18:00:00 to 01-AUG-11 18:00:00 (EST-5)
Location: WHITE PLAINS
Magnitude: 52.00 EG
Property damage: 3.00K
Reported by: Newspaper

A few trees were reported down in White Plains.

Thunderstorm Wind in WESTCHESTER, NEW YORK
From 01-AUG-11 18:20:00 to 01-AUG-11 18:20:00 (EST-5)
Location: SCARSDALE
Magnitude: 52.00 EG
Property damage: 3.00K
Reported by: Newspaper

A few trees were reported down in Scarsdale.

Thunderstorm Wind in WESTCHESTER, NEW YORK
From 01-AUG-11 18:15:00 to 01-AUG-11 18:15:00 (EST-5)
Location: BRONXVILLE
Magnitude: 52.00 EG
Property damage: 3.00K
Reported by: Newspaper

A few trees were reported down in Bronxville.

Thunderstorm Wind in WESTCHESTER, NEW YORK
From 01-AUG-11 18:25:00 to 01-AUG-11 18:25:00 (EST-5)
Location: LARCHMONT
Magnitude: 52.00 EG
Property damage: 3.00K
Reported by: Newspaper

A few trees were reported down in Larchmont.

Thunderstorm Wind in WESTCHESTER, NEW YORK
From 01-AUG-11 18:25:00 to 01-AUG-11 18:25:00 (EST-5)
Location: PORT CHESTER
Magnitude: 52.00 EG
Property damage: 3.00K
Reported by: Newspaper

A few trees were reported down in Port Chester.

Thunderstorm Wind in ROCKLAND, NEW YORK
From 01-AUG-11 17:25:00 to 01-AUG-11 17:25:00 (EST-5)
Location: CONGERS
Magnitude: 52.00 EG
Property damage: 1.00K
Reported by: Newspaper

A utility pole broke along the Lake Deforest Causeway near Congers.

Lightning in SUFFOLK, NEW YORK
From 01-AUG-11 13:30:00 to 01-AUG-11 13:30:00 (EST-5)
Location: BABYLON
Property damage: 50.00K
Reported by: Newspaper

Lightning struck the Babylon Tower for the Long Island Railroad, causing extensive damage to the main and back up computer systems, as well as communication links to switches, resulting in extensive delays.

Thunderstorm Wind in PUTNAM, NEW YORK
From 01-AUG-11 16:53:00 to 01-AUG-11 16:53:00 (EST-5)
Location: KENT CLIFFS
Magnitude: 52.00 EG
Property damage: 1.00K
Reported by: Trained Spotter

A tree was reported down between Route 301 and Old Route 301 near Kent Cliffs.

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 12:05:00 to 01-AUG-11 12:05:00 (EST-5)
Location: HARTSDALE
Magnitude: 0.75 
Reported by: NWS Employee

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:15:00 to 01-AUG-11 15:15:00 (EST-5)
Location: GREAT NECK
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:05:00 to 01-AUG-11 15:05:00 (EST-5)
Location: NEW HYDE PARK
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:13:00 to 01-AUG-11 15:13:00 (EST-5)
Location: NEW HYDE PARK
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:15:00 to 01-AUG-11 15:15:00 (EST-5)
Location: GARDEN CITY PARK
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:20:00 to 01-AUG-11 15:20:00 (EST-5)
Location: HEMPSTEAD
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:28:00 to 01-AUG-11 15:28:00 (EST-5)
Location: GARDEN CITY PARK
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:49:00 to 01-AUG-11 15:49:00 (EST-5)
Location: HEMPSTEAD
Magnitude: 0.88 
Reported by: Trained Spotter

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:57:00 to 01-AUG-11 15:57:00 (EST-5)
Location: ROCKVILLE CENTRE
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in NASSAU, NEW YORK
From 01-AUG-11 15:57:00 to 01-AUG-11 15:57:00 (EST-5)
Location: WEST HEMPSTEAD
Magnitude: 0.88 
Reported by: Trained Spotter

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 16:09:00 to 01-AUG-11 16:09:00 (EST-5)
Location: CROTON ON HUDSON
Magnitude: 1.00 
Reported by: Trained Spotter

Quarter size hail was reported in Croton-On-Hudson.

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 17:00:00 to 01-AUG-11 17:00:00 (EST-5)
Location: WHITE PLAINS
Magnitude: 1.75 
Reported by: Trained Spotter

Half-dollar to golf ball size hail was reported in White Plains.

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 17:04:00 to 01-AUG-11 17:04:00 (EST-5)
Location: HAWTHORNE
Magnitude: 0.88 
Reported by: Trained Spotter

Thunderstorm Wind in WESTCHESTER, NEW YORK
From 01-AUG-11 17:05:00 to 01-AUG-11 17:05:00 (EST-5)
Location: TARRYTOWN
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Trained Spotter

Multiple large branches were reported down near Tappan Zee Bridge.

Hail in PUTNAM, NEW YORK
From 01-AUG-11 17:10:00 to 01-AUG-11 17:10:00 (EST-5)
Location: MAHOPAC
Magnitude: 0.88 
Reported by: Trained Spotter

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 17:20:00 to 01-AUG-11 17:20:00 (EST-5)
Location: WHITE PLAINS
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 17:20:00 to 01-AUG-11 17:20:00 (EST-5)
Location: SCARSDALE
Magnitude: 0.88 
Reported by: Trained Spotter

Hail in WESTCHESTER, NEW YORK
From 01-AUG-11 16:55:00 to 01-AUG-11 16:55:00 (EST-5)
Location: NORTH TARRYTOWN
Magnitude: 1.00 
Reported by: Public

Quarter size hail was reported in Philipse Manor.

Thunderstorm Wind in SUFFOLK, NEW YORK
From 01-AUG-11 19:35:00 to 01-AUG-11 19:35:00 (EST-5)
Location: CANOE PLACE
Magnitude: 61.00 EG
Property damage: 7.50K
Reported by: Fire Department/Rescue

Numerous trees were reported down in the Hamlet of Hampton Bays.