Excessive Heat Warnings were in effect across much of southern New England with temperatures well up into the 90s and dewpoints in the mid 70s.  Very high CAPE values led to the development of late afternoon and evening severe thunderstorms in portions of western and central Massachusetts and northern Connecticut.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 12-AUG-21 16:37:00 to 12-AUG-21 16:37:00 (EST-5)
Location: SOUTH HADLEY FALLS
Magnitude: 50.00 EG
Property damage: 1.50K
Crop damage: 0.00K
Reported by: Amateur Radio

In Granby, multiple trees were down on Rt. 202.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 12-AUG-21 16:35:00 to 12-AUG-21 16:35:00 (EST-5)
Location: EASTHAMPTON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Easthampton, a tree and wires were down on Northampton St.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 12-AUG-21 16:37:00 to 12-AUG-21 16:37:00 (EST-5)
Location: (CEF)WESTOVR AFB CHI
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

The AWOS at Westover Air Force Base (KCEF) recorded a gust to 58 mph.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 12-AUG-21 16:23:00 to 12-AUG-21 16:23:00 (EST-5)
Location: HUNTINGTON
Magnitude: 50.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Huntington, a utility pole and wires were down on an unoccupied car.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 12-AUG-21 16:33:00 to 12-AUG-21 16:33:00 (EST-5)
Location: ALDENVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Holyoke, a tree and wires were down on a building and a car on Wilson Ave.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 12-AUG-21 16:27:00 to 12-AUG-21 16:27:00 (EST-5)
Location: WESTFIELD
Magnitude: 56.00 EG
Property damage: 1.50K
Crop damage: 0.00K
Reported by: Trained Spotter

In Westfield, multiple trees were down, blocking a portion of Route 202.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 12-AUG-21 16:27:00 to 12-AUG-21 16:27:00 (EST-5)
Location: WEST FARMS
Magnitude: 50.00 EG
Property damage: 0.80K
Crop damage: 0.00K
Reported by: Amateur Radio

In Northampton, a tree and wires were down on Westhampton Rd.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 12-AUG-21 16:27:00 to 12-AUG-21 16:27:00 (EST-5)
Location: (BAF)BARNES ARPT WST
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at Westfield-Barned Airport (KBAF) recorded a wind gust to 68 mph.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 12-AUG-21 16:30:00 to 12-AUG-21 16:30:00 (EST-5)
Location: WORONOCO
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Amateur Radio

In Russell, a tree was down at the intersection of Route 23 and Route 20.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 12-AUG-21 16:50:00 to 12-AUG-21 16:50:00 (EST-5)
Location: INGLESIDE
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Amateur Radio

In Chicopee, a tree was down on a home on Crescent Dr.

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 12-AUG-21 17:25:00 to 12-AUG-21 17:25:00 (EST-5)
Location: WEST BROOKFIELD
Magnitude: 50.00 EG
Property damage: 0.80K
Crop damage: 0.00K
Reported by: Amateur Radio

In Warren, a tree and wires were down on Old Douglas Rd.

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 12-AUG-21 17:38:00 to 12-AUG-21 17:38:00 (EST-5)
Location: SOUTH WORCESTER
Magnitude: 50.00 EG
Property damage: 1.30K
Crop damage: 0.00K
Reported by: Amateur Radio

In Worcester, trees and wires were down on Ferdinand St.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 12-AUG-21 15:49:00 to 12-AUG-21 15:49:00 (EST-5)
Location: ADAMSVILLE
Magnitude: 50.00 EG
Property damage: 0.80K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In Colrain, a tree and wires were down on Wilson Hill Rd. near Purington Lane.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 12-AUG-21 16:44:00 to 12-AUG-21 16:44:00 (EST-5)
Location: NORTH AGAWAM
Magnitude: 50.00 EG
Property damage: 1.50K
Crop damage: 0.00K
Reported by: Amateur Radio

In Agawam, a tree and wires were down on High Street and Line Street.