A backdoor cold front combined with a sea breeze front, warm temperatures, and plenty of instability to produce showers and thunderstorms across much of southern New England.  Significant wind damage was produced throughout much of the Connecticut River Valley in Massachusetts with numerous trees and wires down and widespread power outages.  This resulted in dozens of road closures, including portions of Route 2 and Interstate 91.

Hail in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 21:09:00 to 26-MAY-10 21:09:00 (EST-5)
Location: GRANVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Pea to nickel size hail fell on Old Westfield Road.

Hail in WORCESTER, MASSACHUSETTS
From 26-MAY-10 21:42:00 to 26-MAY-10 21:42:00 (EST-5)
Location: SHREWSBURY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:46:00 to 26-MAY-10 22:46:00 (EST-5)
Location: WENDELL
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Numerous trees and wires were downed throughout Wendell, resulting in many power outages.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 22:49:00 to 26-MAY-10 22:49:00 (EST-5)
Location: EAST SPRINGFIELD
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A tree on Boston Road was downed by thunderstorm winds.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 22:49:00 to 26-MAY-10 22:49:00 (EST-5)
Location: HIGHLANDS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A tree and large tree limbs along Route 5 were downed by thunderstorm winds.

Hail in WORCESTER, MASSACHUSETTS
From 26-MAY-10 21:47:00 to 26-MAY-10 21:54:00 (EST-5)
Location: GRAFTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny to quarter size hail fell in a swath from Grafton to Sutton.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:05:00 to 26-MAY-10 22:05:00 (EST-5)
Location: LEYDEN
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires on West Leyden Road and Brattleboro Roads were downed by thunderstorm winds.  This resulted in numerous road closures and power outages.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:15:00 to 26-MAY-10 22:15:00 (EST-5)
Location: BUCKLAND
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires were downed throughout portions of Buckland, leaving large parts of town without power.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:50:00 to 26-MAY-10 22:50:00 (EST-5)
Location: NEW SALEM
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires were downed throughout New Salem, resulting in power outages in half the town.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 22:50:00 to 26-MAY-10 22:53:00 (EST-5)
Location: LUDLOW
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and large tree limbs were downed throughout Ludlow.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:18:00 to 26-MAY-10 22:18:00 (EST-5)
Location: GREENFIELD
Magnitude: 50.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Multiple trees downed throughout Greenfield, resulting in numerous road closures and power outages.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:18:00 to 26-MAY-10 22:18:00 (EST-5)
Location: SHELBURNE
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires downed by thunderstorm winds, resulting in numerous road closures and power outages.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:29:00 to 26-MAY-10 22:29:00 (EST-5)
Location: EAST NORTHFIELD
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Multiple trees and wires were downed by thunderstorm winds.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:29:00 to 26-MAY-10 22:29:00 (EST-5)
Location: BERNARDSTON
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Multiple trees were downed by thunderstorm winds.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:30:00 to 26-MAY-10 22:30:00 (EST-5)
Location: GILL
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires were downed by thunderstorm winds resulting in power outages.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 26-MAY-10 22:50:00 to 26-MAY-10 22:50:00 (EST-5)
Location: AMHERST
Magnitude: 50.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees, large tree limbs, and wires were downed by thunderstorm winds.  Multiple roads were closed in Granby due to downed trees blocking them.  One tree was downed onto a house along Route 202 in Granby.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 22:55:00 to 26-MAY-10 23:02:00 (EST-5)
Location: WEST SPRINGFIELD
Magnitude: 50.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires were downed along Route 20 in West Springfield and in Springfield.  A large tree was downed onto a house on Forest Park Avenue in Springfield.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 22:53:00 to 26-MAY-10 22:53:00 (EST-5)
Location: WEST SPRINGFIELD
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees on Cooper Street were downed by thunderstorm winds.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:33:00 to 26-MAY-10 22:33:00 (EST-5)
Location: DEERFIELD
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Multiple trees were downed by thunderstorm winds.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 26-MAY-10 22:35:00 to 26-MAY-10 22:35:00 (EST-5)
Location: GOSHEN
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A large tree on Old Chesterfield Road was downed by thunderstorm winds.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:35:00 to 26-MAY-10 22:35:00 (EST-5)
Location: SUNDERLAND
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several large limbs were downed by thunderstorm winds onto wires resulting in power outages.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:40:00 to 26-MAY-10 22:40:00 (EST-5)
Location: LEVERETT
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires were downed by thunderstorm winds.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:40:00 to 26-MAY-10 22:40:00 (EST-5)
Location: MONTAGUE
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees along Route 63 were downed by thunderstorm winds.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 26-MAY-10 22:55:00 to 26-MAY-10 22:55:00 (EST-5)
Location: WARE
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Numerous trees and wires were downed in Ware, including along Gilbertville and Campbell Roads.  Six other roads were also closed due to the downed trees and wires.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 26-MAY-10 22:55:00 to 26-MAY-10 22:55:00 (EST-5)
Location: BAY STATE
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires along Route 9 were downed by thunderstorm winds.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:45:00 to 26-MAY-10 22:45:00 (EST-5)
Location: EAST WHATELY
Magnitude: 50.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Numerous trees, eight utility poles, and wires were downed throughout Whately, resulting in many power outages.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 26-MAY-10 22:45:00 to 26-MAY-10 22:45:00 (EST-5)
Location: HADLEY
Magnitude: 50.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Numerous trees were downed throughout Hadley.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 26-MAY-10 22:55:00 to 26-MAY-10 22:55:00 (EST-5)
Location: BELCHERTOWN
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires along Route 9 on the Ware/Belchertown line were downed by thunderstorm winds.

Hail in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 22:57:00 to 26-MAY-10 22:57:00 (EST-5)
Location: BLANDFORD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 23:06:00 to 26-MAY-10 23:06:00 (EST-5)
Location: SOUTHWICK
Magnitude: 50.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees, limbs, and wires were downed throughout Southwick and Westfield, including on Route 57 and South Longyard and Sunnyside Roads in Southwick.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 26-MAY-10 22:45:00 to 26-MAY-10 22:45:00 (EST-5)
Location: SOUTH HADLEY
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous branches were downed by thunderstorm winds, including one large branch that blocked Ferry Street.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 22:46:00 to 26-MAY-10 22:46:00 (EST-5)
Location: (CEF)WESTOVR AFB CHI
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Automated Surface Observing System at Chicopee Falls (Westfield Air Force Base - KCEF) recorded a wind gust of 64 mph.  Trees and wires on Tremont and Abbey Streets were downed by these winds.

Thunderstorm Wind in FRANKLIN, MASSACHUSETTS
From 26-MAY-10 22:46:00 to 26-MAY-10 22:46:00 (EST-5)
Location: SHUTESBURY
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Numerous trees and wires were downed by thunderstorm winds, resulting in multiple power outages.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 23:11:00 to 26-MAY-10 23:11:00 (EST-5)
Location: NORTH WILBRAHAM
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees on Stony Hill and Brainard Roads and Ruth Drive were downed by thunderstorm winds.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 23:15:00 to 26-MAY-10 23:15:00 (EST-5)
Location: EAST SPRINGFIELD
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous large trees were downed by thunderstorm winds.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 26-MAY-10 23:20:00 to 26-MAY-10 23:20:00 (EST-5)
Location: HOLLAND
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Multiple trees were downed by thunderstorm winds.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 26-MAY-10 22:35:00 to 26-MAY-10 22:35:00 (EST-5)
Location: AMHERST
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Multiple trees were downed by thunderstorm winds resulting in power outages.  In Northampton, a tree was downed onto a car.

Hail in PLYMOUTH, MASSACHUSETTS
From 26-MAY-10 20:15:00 to 26-MAY-10 20:15:00 (EST-5)
Location: HANOVER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in PLYMOUTH, MASSACHUSETTS
From 26-MAY-10 20:45:00 to 26-MAY-10 20:45:00 (EST-5)
Location: LAKEVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio