A fast-moving cold front combined with a potent short-wave trough lifting northeastward across western and northern New England to produce severe thunderstorms across southern New England.  Despite dewpoint temperatures only in the 30s and 40s, the cold pool aloft created instability and there was very strong low-level helicity.  The result was an unprecedented outbreak of tornadoes across Long Island, Connecticut, and Rhode Island.

Thunderstorm Wind in HARTFORD, CONNECTICUT
From 13-NOV-21 16:23:00 to 13-NOV-21 16:23:00 (EST-5)
Location: MARLBOROUGH
Magnitude: 50.00 EG
Property damage: 0.80K
Crop damage: 0.00K
Reported by: Amateur Radio

In Marlborough, a tree and power lines were down on Walker Lane at Pettengill Road.

Thunderstorm Wind in HARTFORD, CONNECTICUT
From 13-NOV-21 16:04:00 to 13-NOV-21 16:05:00 (EST-5)
Location: (BDL)BRADLY FLD WNDS
Magnitude: 70.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

In Windsor Locks at 404 PM EST. the ASOS at Bradley International Airport (KBDL) recorded a gust to 47 knots.  However, the Bradley Weather Contract Observer Supervisor estimated that a gust to 70 knots occurred within one-half mile of the ASOS.  A small brick wall just outside of the Signature building got completely blown down and flattened.  There was also some structural damage to the front of the building.  A small airplane that was parked on the ramp got blown and moved onto the grass.  The top part of their backup rain gauge, the piece which funnels the precipitation into the collection tube, got torn off of the metal can and it blew completely away.  The wind also had picked up something and slammed it into their metal precipitation can, causing a three-inch dent in the can.

Thunderstorm Wind in TOLLAND, CONNECTICUT
From 13-NOV-21 16:30:00 to 13-NOV-21 16:30:00 (EST-5)
Location: PERKINS CORNER
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Amateur Radio

In Coventry, a tree was down on Plains Road.

Thunderstorm Wind in TOLLAND, CONNECTICUT
From 13-NOV-21 16:40:00 to 13-NOV-21 16:40:00 (EST-5)
Location: STORRS
Magnitude: 50.00 EG
Property damage: 0.80K
Crop damage: 0.00K
Reported by: Amateur Radio

In Storrs, a tree and wires were down on Jim Calhoun Way.

Thunderstorm Wind in WINDHAM, CONNECTICUT
From 13-NOV-21 16:38:00 to 13-NOV-21 16:38:00 (EST-5)
Location: SOUTH WINDHAM
Magnitude: 50.00 EG
Property damage: 0.80K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In South Windham, a tree was down on wires on Babcock Hill Road.

Thunderstorm Wind in WINDHAM, CONNECTICUT
From 13-NOV-21 16:45:00 to 13-NOV-21 16:45:00 (EST-5)
Location: SCOTLAND
Magnitude: 50.00 EG
Property damage: 1.30K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Scotland, trees and wires were down on Bass Road.

Thunderstorm Wind in WINDHAM, CONNECTICUT
From 13-NOV-21 16:58:00 to 13-NOV-21 16:58:00 (EST-5)
Location: DANIELSON
Magnitude: 50.00 EG
Property damage: 0.60K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Danielson, wires were down on a car on Garrick Street.  Also, wires were down on Main Street at Peckham Lane.

Thunderstorm Wind in WINDHAM, CONNECTICUT
From 13-NOV-21 17:00:00 to 13-NOV-21 17:00:00 (EST-5)
Location: EAST KILLINGLY
Magnitude: 50.00 EG
Property damage: 0.80K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In East Killingly, there was a tree and wires down on Chestnut Hill Road.

Tornado in WINDHAM, CONNECTICUT
From 13-NOV-21 16:48:00 to 13-NOV-21 16:59:00 (EST-5)
Location: ALMYVILLE
Tornado F-scale: EF0
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Based on definitive radar confirmation of a tornado debris signature and video footage from our media partners, we confirmed that an EF-0 tornado touched down in Plainfield, CT at approximately 4:48 PM EST on Saturday, November 13.  Maximum wind speed was estimated at 80 mph and the maximum path width was estimated at 100 yards.  The tornado was in contact with the ground for a total of 6.13 miles....approximately 4.7 miles in CT and 1.4 miles in RI.  Several hardwood trees were uprooted on a hilltop on Sterling Hill Road near Goshen Road.  A tree was reported down on a house on Main Street in Sterling. Also in Sterling, the Fire Department reported trees and wires down on River Road and a transformer fire at the intersection of Gibson Hill Road and Snake Meadow Hill Road.  The tornado then tracked northeastward into Rhode Island and ended at the Cucumber Hill Farm in Foster at approximately 5:02 PM EST.  Sheared trees and downed hardwood trees were observed on the farm.  A heavy, large red trailer also was moved approximately 50 feet.

Thunderstorm Wind in WINDHAM, CONNECTICUT
From 13-NOV-21 17:00:00 to 13-NOV-21 17:00:00 (EST-5)
Location: BROOKLYN
Magnitude: 60.00 EG
Property damage: 1.30K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Brooklyn, the Fire Department reported a tree and wires down on Tatnic Hill Road at Tripp Hollow Road.  Also, there was a spotter report of a 10-inch diameter tree was snapped 10 to 15 feet up...but the street was unknown.