Severe thunderstorms developed in northwest Massachusetts late in the afternoon and traveled southward, affecting much of Massachusetts south of the Mass Pike, northeast Connecticut, and Rhode Island, before exiting Cape Cod and the Islands - a path of approximately 175 miles. This short-lived derecho produced widespread wind damage throughout the region.Trees and wires were reported down in Conway, Ashfield, and Charlemont in Franklin CountyMassachusetts shortly after 4 pm. Similar damage occurred in Hampshire and Hampden Counties afterthat. There were reports of trees down on houses and some cars. Shortly after 5 pm, an old roof was blownoff of an apartment complex in Springfield, which made 11 units on the fifth floor uninhabitable. It wasestimated that straight-line wind gusts of 70 to 80 mph occurred there.The complex of severe thunderstorms then entered southern Worcester County. At 515 pm, a radio stationtower, which was 240 feet tall, was knocked over in Dudley. It is conceivable that wind speeds approached100 mph at the top of the tower. Penny sized hail was observed in Holden.As the storms progressed into eastern Massachusetts, trees fell onto houses and cars in Medway andFoxborough. A significant downburst occurred in Sharon, Stoughton, and Brockton, where many largetrees were either snapped near their bases or uprooted entirely. Utility poles were snapped 6 feet aboveground level near Routes 24 and 123 in Brockton. A trained spotter in Sharon reported penny sized hail.The damage continued all the way to the southeast Massachusetts coast, where trees and wires weredowned in Dartmouth, New Bedford, and Fairhaven, and Mattapoisett.To date, the last derecho to affect southern New England was on July 15, 1995, when a band of severethunderstorms raced from Michigan at midnight to the Massachusetts coast by 8 am. Those stormsproduced a wind gust to 93 mph at Otis Massachusetts in Berkshire County, and damage was reported asfar east as Worcester County.

Thunderstorm Wind in PLYMOUTH, MASSACHUSETTS
From 02-AUG-06 18:30:00 to 02-AUG-06 18:40:00 (EST)
Location: MATTAPOISETT
Magnitude: 50 EG
Property damage: 10K
Reported by: AMATEUR RADIO

Thunderstorm Wind in BRISTOL, MASSACHUSETTS
From 02-AUG-06 18:30:00 to 02-AUG-06 18:30:00 (EST)
Location: NEW BEDFORD
Magnitude: 50 EG
Property damage: 25K
Reported by: AMATEUR RADIO

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 02-AUG-06 15:18:00 to 02-AUG-06 15:22:00 (EST)
Location: ASHFIELD
Magnitude: 50 EG
Property damage: 25K
Reported by: AMATEUR RADIO

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 02-AUG-06 15:35:00 to 02-AUG-06 16:20:00 (EST)
Location: WESTHAMPTON
Magnitude: 50 EG
Property damage: 35K
Reported by: AMATEUR RADIO

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 02-AUG-06 15:59:00 to 02-AUG-06 15:59:00 (EST)
Location: LEVERETT
Magnitude: 50 EG
Property damage: 10K
Reported by: AMATEUR RADIO

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 02-AUG-06 16:15:00 to 02-AUG-06 16:55:00 (EST)
Location: SOUTHBRIDGE
Magnitude: 60 EG
Property damage: 250K
Reported by: AMATEUR RADIO

Hail in WORCESTER, MASSACHUSETTS
From 02-AUG-06 16:20:00 to 02-AUG-06 16:20:00 (EST)
Location: HOLDEN
Magnitude: 0.75 
Property damage: 0K
Reported by: AMATEUR RADIO

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 02-AUG-06 16:22:00 to 02-AUG-06 16:30:00 (EST)
Location: WEST SPRINGFIELD
Magnitude: 65 EG
Property damage: 275K
Reported by: AMATEUR RADIO

Thunderstorm Wind in NORFOLK, MASSACHUSETTS
From 02-AUG-06 16:50:00 to 02-AUG-06 16:50:00 (EST)
Location: MEDWAY
Magnitude: 50 EG
Property damage: 5K
Reported by: AMATEUR RADIO

Thunderstorm Wind in MIDDLESEX, MASSACHUSETTS
From 02-AUG-06 16:50:00 to 02-AUG-06 16:50:00 (EST)
Location: ASHLAND
Magnitude: 50 EG
Property damage: 15K
Reported by: AMATEUR RADIO

Lightning in NORFOLK, MASSACHUSETTS
From 02-AUG-06 17:07:00 to 02-AUG-06 17:07:00 (EST)
Location: WALPOLE
Property damage: 50K
Reported by: AMATEUR RADIO

Thunderstorm Wind in NORFOLK, MASSACHUSETTS
From 02-AUG-06 17:07:00 to 02-AUG-06 17:16:00 (EST)
Location: MEDWAY
Magnitude: 50 EG
Property damage: 50K
Reported by: AMATEUR RADIO

Hail in NORFOLK, MASSACHUSETTS
From 02-AUG-06 17:20:00 to 02-AUG-06 17:20:00 (EST)
Location: SHARON
Magnitude: 0.75 
Property damage: 0K
Reported by: AMATEUR RADIO

Thunderstorm Wind in PLYMOUTH, MASSACHUSETTS
From 02-AUG-06 17:25:00 to 02-AUG-06 17:50:00 (EST)
Location: BROCKTON
Magnitude: 50 MG
Property damage: 75K
Reported by: OFFICIAL NWS OBS.

58 mph gust at Plymouth Airport

Thunderstorm Wind in BRISTOL, MASSACHUSETTS
From 02-AUG-06 17:40:00 to 02-AUG-06 17:40:00 (EST)
Location: TAUNTON
Magnitude: 50 EG
Property damage: 10K
Reported by: AMATEUR RADIO

Lightning in BRISTOL, MASSACHUSETTS
From 02-AUG-06 17:51:00 to 02-AUG-06 17:51:00 (EST)
Location: SWANSEA
Property damage: 15K
Reported by: AMATEUR RADIO