A high amplitude, negatively tilted trough moving across the Great Lakes and into New England along with cold and warm front provided strong forcing which resulted in flooding, wind damage, and 5 tornadoes. In the warm sector dewpoints surged into the mid 70s with PWATs near 2 inches which led to torrential downpours. Tornadoes occurred in Scotland, Ct, Scituate, RI, North Attleboro, MA, Stoughton, MA, and Weymouth, MA. The tornadoes ranged in intensity from EF-0 to EF-2.

Flood in PLYMOUTH, MASSACHUSETTS
From 18-AUG-23 11:15:00 to 18-AUG-23 12:15:00 (EST-5)
Location: PLYMOUTH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Plymouth, a car was stuck in street flooding.

Flash Flood in ESSEX, MASSACHUSETTS
From 18-AUG-23 09:40:00 to 18-AUG-23 10:40:00 (EST-5)
Location: ANDOVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Andover, stores in Shawsheen Plaza flooded.

Flash Flood in MIDDLESEX, MASSACHUSETTS
From 18-AUG-23 09:45:00 to 18-AUG-23 10:45:00 (EST-5)
Location: BILLERICA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Billerica, several basements were flooded.

Flash Flood in ESSEX, MASSACHUSETTS
From 18-AUG-23 09:55:00 to 18-AUG-23 10:55:00 (EST-5)
Location: NEWBURY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

In West Newbury, there was significant street flooding across the town.

Flood in MIDDLESEX, MASSACHUSETTS
From 18-AUG-23 10:45:00 to 18-AUG-23 11:45:00 (EST-5)
Location: WEST CHELMSFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Chelmsford, there was significant street flooding on Rt 110.

Flood in WORCESTER, MASSACHUSETTS
From 18-AUG-23 07:42:00 to 18-AUG-23 08:42:00 (EST-5)
Location: OXFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

In Oxford, there was significant street flooding at Orchard Hill Rd and Sutton Ave.

Thunderstorm Wind in BRISTOL, MASSACHUSETTS
From 18-AUG-23 08:15:00 to 18-AUG-23 08:15:00 (EST-5)
Location: REHOBOTH
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Amateur Radio

In Rehoboth, a tree was down.

Thunderstorm Wind in NORFOLK, MASSACHUSETTS
From 18-AUG-23 08:45:00 to 18-AUG-23 08:45:00 (EST-5)
Location: WEYMOUTH
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Weymouth, numerous trees and wires were down across town.

Tornado in BRISTOL, MASSACHUSETTS
From 18-AUG-23 08:07:00 to 18-AUG-23 08:22:00 (EST-5)
Location: ADAMSDALE
Tornado F-scale: EF1
Property damage: 30.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The storm that produced the Rhode Island tornado produced a second
tornado as it crossed into Massachusetts, just over the Cumberland
line in North Attleborough.
Many trees were snapped or uprooted on Mendon Road near the
intersection of Monticello Drive. An eyewitness saw swirling
debris before taking shelter in her home. From there, damage was
more sporadic. A home on Mary Ann Way had its third floor window
blown in. Additionally, there were a number of downed or snapped
trees on Lisa Drive. The tornado then lifted briefly before
touching back down in Mansfield along Gilbert Street, where it
sheared several large trees near their tops, one of which fell on
a car. An air conditioning unit, estimated to have weighed 1000
pounds, was knocked over on the roof of a one-story commercial
building.

Flash Flood in WORCESTER, MASSACHUSETTS
From 18-AUG-23 07:10:00 to 18-AUG-23 08:10:00 (EST-5)
Location: SOUTHBRIDGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Southbridge, several streets were flooded and impassable with cars stuck.

Flood in WORCESTER, MASSACHUSETTS
From 18-AUG-23 07:38:00 to 18-AUG-23 08:38:00 (EST-5)
Location: MILLBURY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

In Millbury, Millbury Shops on ramp to 146 southbound was flooded and impassable.

Flood in WORCESTER, MASSACHUSETTS
From 18-AUG-23 07:54:00 to 18-AUG-23 08:54:00 (EST-5)
Location: FISHERVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Grafton, there was significant street flooding on Providence Rd and Crosby Rd.

Flood in WORCESTER, MASSACHUSETTS
From 18-AUG-23 08:09:00 to 18-AUG-23 09:09:00 (EST-5)
Location: SHREWSBURY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

In Shrewsbury, town hall near the police department was flooded. Municiple Dr was also flooded.

Flash Flood in NORFOLK, MASSACHUSETTS
From 18-AUG-23 08:35:00 to 18-AUG-23 09:35:00 (EST-5)
Location: SOUTH FOXBORO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Foxborough, there was 1 foot of street flooding in the right lane of 495 south.

Flash Flood in MIDDLESEX, MASSACHUSETTS
From 18-AUG-23 08:53:00 to 18-AUG-23 09:53:00 (EST-5)
Location: (BED)HANSCOM FLD BED
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Bedford, there was 1 to 2 feet of standing water and submerged cars at Hanscom Air Force Base.

Tornado in NORFOLK, MASSACHUSETTS
From 18-AUG-23 08:37:00 to 18-AUG-23 08:39:00 (EST-5)
Location: STOUGHTON
Tornado F-scale: EF0
Property damage: 3.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado briefly touched down in Stoughton on Eighth Street and
Corbett Street. Sporadic damage along a short path included fallen
trees, one of which fell onto a shed. Part of a fence was blown
in.

Flash Flood in NORFOLK, MASSACHUSETTS
From 18-AUG-23 09:05:00 to 18-AUG-23 10:05:00 (EST-5)
Location: WEST STOUGHTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Canton, North Main St at Bay Rd was flooded.

Flash Flood in SUFFOLK, MASSACHUSETTS
From 18-AUG-23 09:05:00 to 18-AUG-23 10:05:00 (EST-5)
Location: GROVE HALL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

In Dorchester, portions of Southern Ave were flooded and impassable.

Flash Flood in MIDDLESEX, MASSACHUSETTS
From 18-AUG-23 09:07:00 to 18-AUG-23 10:07:00 (EST-5)
Location: MAYNARD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Maynard, Parker St at Great Rd was flooded and impassable.

Flash Flood in ESSEX, MASSACHUSETTS
From 18-AUG-23 09:37:00 to 18-AUG-23 10:37:00 (EST-5)
Location: ANDOVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Andover, a portion of Main St was flooded.

Flash Flood in BRISTOL, MASSACHUSETTS
From 18-AUG-23 09:45:00 to 18-AUG-23 10:45:00 (EST-5)
Location: FALL RIVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Fall River, Plymouth Ave between I-95 and Pleasant St was flooded and impassable.

Thunderstorm Wind in PLYMOUTH, MASSACHUSETTS
From 18-AUG-23 08:30:00 to 18-AUG-23 08:30:00 (EST-5)
Location: BROCKTON
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

In Brockton, the side of a house sustained damage from high winds.

Tornado in NORFOLK, MASSACHUSETTS
From 18-AUG-23 08:52:00 to 18-AUG-23 08:55:00 (EST-5)
Location: SOUTH WEYMOUTH NAS
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down in Weymouth near the intersection of
Pleasant and Torrey Streets. Numerous trees were uprooted and
snapped. A home at the intersection of Burton Terrace and Torrey
Street had about twenty singles torn from its roof. On Park
Avenue, a three-inch diameter branch from a treetrop was blown
about 120 yards and driven into the ground to a depth of 2 feet.
An eyewitness who received a Wireless Emergency Alert could see
swirling debris out a window as she took shelter in her cellar.
The tornado lifted near a water tower at the end of Lockewoods
Drive.

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 18-AUG-23 08:00:00 to 18-AUG-23 08:00:00 (EST-5)
Location: NORTHBRIDGE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Northbridge, trees were down blocking a road.

Thunderstorm Wind in BRISTOL, MASSACHUSETTS
From 18-AUG-23 08:09:00 to 18-AUG-23 08:09:00 (EST-5)
Location: ATTLEBORO
Magnitude: 50.00 EG
Property damage: 0.80K
Crop damage: 0.00K
Reported by: Amateur Radio

In Attleborough, a tree and wires were down.

Thunderstorm Wind in BRISTOL, MASSACHUSETTS
From 18-AUG-23 08:09:00 to 18-AUG-23 08:09:00 (EST-5)
Location: ATTLEBORO
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Amateur Radio

In Attleborough, a tree was down blocking the road.