An occluded front coupled with shortwave energy moving through associated with a vigorous upper low over the Great Lakes, combined to produce an isolated severe thunderstorm over New London County, CT.  Training of cells also caused severe flash flooding.  Mesonet sites at Cutler Middle School in Mystic and Wheeler Middle/High School in North Stonington reported 6 1/2 inches and 5 3/4 inches of rainfall respectively.

Hail in NEW LONDON, CONNECTICUT
From 01-JUL-09 09:53:00 to 01-JUL-09 09:53:00 (EST-5)
Location: LYME
Magnitude: 0.75 
Reported by: COOP Observer

Penny size hail was reported in Lyme.

Heavy Rain in NEW LONDON, CONNECTICUT
From 01-JUL-09 12:57:00 to 01-JUL-09 12:57:00 (EST-5)
Location: GROTON LONG PT
Property damage: 7.50K
Crop damage: 0.00K
Reported by: NWS Employee

A tree was down at 18 Beach Road and 23 Beach Road (into the house) in Groton Long Point due to strong winds and heavy rainfall.

Lightning in NEW LONDON, CONNECTICUT
From 01-JUL-09 13:10:00 to 01-JUL-09 13:10:00 (EST-5)
Location: STONINGTON
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Several houses in Stonington were struck by lightning, causing some minor house fires.

Lightning in FAIRFIELD, CONNECTICUT
From 01-JUL-09 11:10:00 to 01-JUL-09 11:10:00 (EST-5)
Location: GREENWICH
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning struck a power pole at the corner of Mason and Lewis Streets in Greenwich.

Flash Flood in NEW LONDON, CONNECTICUT
From 01-JUL-09 10:55:00 to 01-JUL-09 13:15:00 (EST-5)
Location: (GON)GROTON-NEW LNDN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Groton, water from flooding rains was pumped out of basements on Poquonnock Rd.

Flash Flood in NEW LONDON, CONNECTICUT
From 01-JUL-09 11:00:00 to 01-JUL-09 13:15:00 (EST-5)
Location: POQUONOCK BRIDGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One to two ft. of standing water developed at the intersection of Rt. 117 and Indian Field Rd. in Groton.

Flash Flood in NEW LONDON, CONNECTICUT
From 01-JUL-09 11:15:00 to 01-JUL-09 13:15:00 (EST-5)
Location: LEDYARD CENTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Water was pumped out of over 100 commercial and residential basements in Mystic, Groton, Stonington and Ledyard.

Flash Flood in NEW LONDON, CONNECTICUT
From 01-JUL-09 13:00:00 to 01-JUL-09 13:15:00 (EST-5)
Location: PAWCATUCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A farm dam overtopped, flooded and closed Route 1 near Angola Brook in Pawcatuck.

Flash Flood in NEW LONDON, CONNECTICUT
From 01-JUL-09 10:49:00 to 01-JUL-09 13:15:00 (EST-5)
Location: FIELD CREST ESTATES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Mystic, High St. near Cow Hill Rd. was closed due to flooding.  Water was also pumped out of basements on Sandy Hollow Road.

Flash Flood in NEW LONDON, CONNECTICUT
From 01-JUL-09 12:00:00 to 01-JUL-09 13:15:00 (EST-5)
Location: WEST MYSTIC
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A river bridge on Collins Rd. in North Stonington was flooded, which resulted in damage to the bridge and the road being closed.  Noank Rd. in Mystic was closed due to flooding.  A river bridge on North Stonington Rd. near Shewville Rd. in North  Stonington was flooded and resulted in the road being closed.  Approximately 50-60 cars were inundated with water and trapped in the Mystic Aquarium parking lot. Several vehicles were also stuck in high water on Coogan Blvd. near the Mystic Aquarium.  A portion of Rt. 1 in Mystic was closed due to flooding.  Emergency responders in Stonington pulled an occupied vehicle out of the water in the area of Washington St. and Broadway Ave.