The area was in a warm, humid and very unstable air mass on Wednesday, June 8th. A strong disturbance in the upper levels of the atmosphere moved across the region, tapping the explosive instability and triggering severe thunderstorms across the Berkshires that produced large hail and damaging winds during the evening.

Thunderstorm Wind in BERKSHIRE, MASSACHUSETTS
From 08-JUN-11 19:24:00 to 08-JUN-11 19:24:00 (EST-5)
Location: LENOX
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Newspaper

A tall pine tree on Old Stockbridge Road, Route 7, was reported down by strong thunderstorm winds near Lenox Town Hall. A car crashed into the tree and the driver was reported hospitalized with lacerations.

Hail in BERKSHIRE, MASSACHUSETTS
From 08-JUN-11 17:50:00 to 08-JUN-11 17:52:00 (EST-5)
Location: RICHMOND FURNACE
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail was reported during a thunderstorm in West Stockbridge.

Hail in BERKSHIRE, MASSACHUSETTS
From 08-JUN-11 17:56:00 to 08-JUN-11 17:58:00 (EST-5)
Location: STOCKBRIDGE
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball size hail was reported during a thunderstorm in Stockbridge.

Hail in BERKSHIRE, MASSACHUSETTS
From 08-JUN-11 19:00:00 to 08-JUN-11 19:10:00 (EST-5)
Location: PITTSFIELD
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of hail greater than an inch in diameter were reported during a thunderstorm in Pittsfield. The largest hail stones observed were estimated to be the size of golf balls.

Thunderstorm Wind in BERKSHIRE, MASSACHUSETTS
From 08-JUN-11 19:20:00 to 08-JUN-11 19:20:00 (EST-5)
Location: STOCKBRIDGE
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees and limbs were reported down in Stockbridge due to strong thunderstorm winds.

Thunderstorm Wind in BERKSHIRE, MASSACHUSETTS
From 08-JUN-11 19:25:00 to 08-JUN-11 19:25:00 (EST-5)
Location: LENOX
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Newspaper

A tree was reported down on a house on Walker Street in Lenox due to strong thunderstorm winds. Several sections of the house were reported damaged.

Thunderstorm Wind in BERKSHIRE, MASSACHUSETTS
From 08-JUN-11 19:25:00 to 08-JUN-11 19:25:00 (EST-5)
Location: LENOX
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Newspaper

A tree was reported down on a house damaging most of the roof on Schermerhorn Parkway in Lenox due to strong thunderstorm winds.

Thunderstorm Wind in BERKSHIRE, MASSACHUSETTS
From 08-JUN-11 19:25:00 to 08-JUN-11 19:25:00 (EST-5)
Location: WEST STOCKBRIDGE
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Newspaper

Trees were reported down on houses in the vicinity of the Stockbridge Bowl in Stockbridge along Interlaken and Mahkeenac Roads due to strong thunderstorm winds.

Thunderstorm Wind in BERKSHIRE, MASSACHUSETTS
From 08-JUN-11 19:24:00 to 08-JUN-11 19:24:00 (EST-5)
Location: LENOX
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Newspaper

In Lenox, numerous trees were reported down due to strong thunderstorm winds
along East Street between New Lenox Road and Housatonic Street, on Kemble Street at the  Shakespeare and Company Campus and on Walker Street at the Ventfort Hall Mansion and Gilded Age Museum.

Hail in BERKSHIRE, MASSACHUSETTS
From 08-JUN-11 23:35:00 to 08-JUN-11 23:37:00 (EST-5)
Location: BECKET
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Public

Quarter size hail (measured) was reported during a thunderstorm in Becket.