A deep longwave trough, south-southwest flow at all levels, and the development of a QLCS (quasi-linear convective system) created all the ingredients for a widespread and susbstantial flash flood event across much of southern New England.  For a few hours during the late morning, helicity values were high and a brief tornado formed along the QLCS in North Brookfield, MA.

Thunderstorm Wind in HARTFORD, CONNECTICUT
From 16-JUL-23 08:40:00 to 16-JUL-23 08:40:00 (EST-5)
Location: GLASTONBURY
Magnitude: 50.00 EG
Property damage: 0.80K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Glastonbury, a tree and wires were down on Naubuc Avenue.  Report relayed by amateur radio.

Thunderstorm Wind in TOLLAND, CONNECTICUT
From 16-JUL-23 09:25:00 to 16-JUL-23 09:25:00 (EST-5)
Location: TOLLAND
Magnitude: 50.00 EG
Property damage: 1.30K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Tolland, trees were down on wires on an unspecified street.  Report relayed by amateur radio.

Thunderstorm Wind in HARTFORD, CONNECTICUT
From 16-JUL-23 08:35:00 to 16-JUL-23 08:35:00 (EST-5)
Location: MANCHESTER
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Manchester, trees were down on wires in multiple locations.  Report relayed by amateur radio.

Thunderstorm Wind in HARTFORD, CONNECTICUT
From 16-JUL-23 09:24:00 to 16-JUL-23 09:24:00 (EST-5)
Location: SOUTH WETHERSFIELD
Magnitude: 60.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Emergency Manager

In Wethersfield, several small trees were uprooted, flashing was ripped off a building, and a large bronze landscaping piece was tipped over on Silas Deane Highway.

Flash Flood in HARTFORD, CONNECTICUT
From 16-JUL-23 08:52:00 to 16-JUL-23 09:52:00 (EST-5)
Location: WEST HARTFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In West Hartford, there was 3 feet of water on Argyle Rd with a vehicle stuck.

Flash Flood in HARTFORD, CONNECTICUT
From 16-JUL-23 11:15:00 to 16-JUL-23 12:15:00 (EST-5)
Location: WINDSORVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

In Tolland, there was roadway damage on Dunn Hill Rd with cracking asphalt.

Flood in HARTFORD, CONNECTICUT
From 16-JUL-23 12:00:00 to 16-JUL-23 13:00:00 (EST-5)
Location: FORESTVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

In Bristol, a portion of Rt 229 at Rt 72 was closed due to flooding.

Flash Flood in HARTFORD, CONNECTICUT
From 16-JUL-23 08:30:00 to 16-JUL-23 09:30:00 (EST-5)
Location: NEW BRITAIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In New Britain, there was 2 feet of water on Corbin Ave.

Flash Flood in HARTFORD, CONNECTICUT
From 16-JUL-23 08:25:00 to 16-JUL-23 09:25:00 (EST-5)
Location: BRISTOL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Bristol, several roads were covered in deep water and impassable with cars stuck.

Flash Flood in HARTFORD, CONNECTICUT
From 16-JUL-23 08:58:00 to 16-JUL-23 09:58:00 (EST-5)
Location: WINDSOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Windsor, there was several feet of water on Addison Rd.

Thunderstorm Wind in HARTFORD, CONNECTICUT
From 16-JUL-23 07:35:00 to 16-JUL-23 07:35:00 (EST-5)
Location: ROCKY HILL
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Broadcast Media

In Rocky Hill, a large tree was uprooted, per picture on social media.  Time estimated by radar.

Flash Flood in HARTFORD, CONNECTICUT
From 16-JUL-23 09:40:00 to 16-JUL-23 10:40:00 (EST-5)
Location: (HFD)HARTFORD-BRANRD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Hartford, parts of Franlkin Ave were closed from 1 foot of water.