A stalled frontal boundary coupled with an upper level disturbance allowed thunderstorms, some severe, to develop the night of August 17th into the early morning hours of the 18th.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 21:50:00 to 17-AUG-07 21:50:00 (EST-5)
Location: BLANDFORD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large tree limbs down near route 23.

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 17-AUG-07 23:09:00 to 17-AUG-07 23:09:00 (EST-5)
Location: CHARLTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Two large trees blocking roads.

Thunderstorm Wind in MIDDLESEX, MASSACHUSETTS
From 17-AUG-07 23:35:00 to 17-AUG-07 23:35:00 (EST-5)
Location: HUDSON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large limbs down on Water Street.

Thunderstorm Wind in MIDDLESEX, MASSACHUSETTS
From 17-AUG-07 23:45:00 to 17-AUG-07 23:45:00 (EST-5)
Location: BEAVER BROOK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires down.

Thunderstorm Wind in NORFOLK, MASSACHUSETTS
From 17-AUG-07 23:50:00 to 17-AUG-07 23:50:00 (EST-5)
Location: SHARON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large tree blocking road.

Thunderstorm Wind in BRISTOL, MASSACHUSETTS
From 18-AUG-07 00:50:00 to 18-AUG-07 00:50:00 (EST-5)
Location: ACUSHNET
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large tree limbs down on Main Street.

Thunderstorm Wind in PLYMOUTH, MASSACHUSETTS
From 18-AUG-07 00:50:00 to 18-AUG-07 00:50:00 (EST-5)
Location: MARION
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Wires down on Point Road.

Hail in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 22:20:00 to 17-AUG-07 22:20:00 (EST-5)
Location: SOUTHWICK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Penny size hail.

Hail in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 22:22:00 to 17-AUG-07 22:24:00 (EST-5)
Location: LUDLOW
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Penny size hail fell heavily for 2 minutes and covered the ground.

Hail in BARNSTABLE, MASSACHUSETTS
From 18-AUG-07 01:24:00 to 18-AUG-07 01:24:00 (EST-5)
Location: SANDWICH
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Penny size hail.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 21:52:00 to 17-AUG-07 21:52:00 (EST-5)
Location: SOUTHWICK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees and powerlines down. One tree fell onto a house.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 21:56:00 to 17-AUG-07 21:56:00 (EST-5)
Location: MONTGOMERY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large limbs down.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 22:18:00 to 17-AUG-07 22:18:00 (EST-5)
Location: WILLIMANSETT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large limbs down.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 22:18:00 to 17-AUG-07 22:18:00 (EST-5)
Location: WEST SPRINGFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees down.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 22:21:00 to 17-AUG-07 22:21:00 (EST-5)
Location: AGAWAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large trees down.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 17-AUG-07 22:30:00 to 17-AUG-07 22:30:00 (EST-5)
Location: SOUTH HADLEY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large limbs down.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 22:33:00 to 17-AUG-07 22:33:00 (EST-5)
Location: NORTH WILBRAHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large trees down.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 22:35:00 to 17-AUG-07 22:35:00 (EST-5)
Location: PALMER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large limbs down on wires.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 17-AUG-07 22:36:00 to 17-AUG-07 22:36:00 (EST-5)
Location: EAST SPRINGFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large limbs down.

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 17-AUG-07 22:45:00 to 17-AUG-07 22:45:00 (EST-5)
Location: STURBRIDGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees down.

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 17-AUG-07 23:10:00 to 17-AUG-07 23:10:00 (EST-5)
Location: DUDLEY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large tree and wires down on Bonnieview Road.