An upper level disturbance and associated cold pool provided enough lift and instability to produce showers and thunderstorms. In addition, there was enough shear to sustain these thunderstorms. These storms produced damaging wind and some large hail across portions of southern New Hampshire and northeastern Massachusetts.

Flood in MIDDLESEX, MASSACHUSETTS
From 23-JUN-12 16:19:00 to 23-JUN-12 17:30:00 (EST-5)
Location: BEAVER BROOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

The intersection of Forest Street and Trapelo Road was flooded and impassable.

Thunderstorm Wind in NORFOLK, MASSACHUSETTS
From 23-JUN-12 16:25:00 to 23-JUN-12 16:25:00 (EST-5)
Location: BROOKLINE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several trees were downed by thunderstorm winds.  Several tents at an amateur radio field day event were blown over.

Flood in MIDDLESEX, MASSACHUSETTS
From 23-JUN-12 16:43:00 to 23-JUN-12 18:00:00 (EST-5)
Location: MELROSE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A car was stuck in flood waters under a railroad bridge.  One person was trapped in the vehicle and rescued.

Flood in MIDDLESEX, MASSACHUSETTS
From 23-JUN-12 16:49:00 to 23-JUN-12 18:00:00 (EST-5)
Location: TUFTS COLLEGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

University Avenue was flooded and impassable near the Tufts University Police Department.

Flood in MIDDLESEX, MASSACHUSETTS
From 23-JUN-12 16:58:00 to 23-JUN-12 18:00:00 (EST-5)
Location: MALDEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Pleasant Street was flooded with eight to twelve inches of water.

Thunderstorm Wind in PLYMOUTH, MASSACHUSETTS
From 23-JUN-12 17:04:00 to 23-JUN-12 17:04:00 (EST-5)
Location: HINGHAM
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Four trees were downed on four different streets by thunderstorm winds.  One of these trees blocked the street.

Flood in MIDDLESEX, MASSACHUSETTS
From 23-JUN-12 17:06:00 to 23-JUN-12 18:30:00 (EST-5)
Location: TUFTS COLLEGE
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A car was stuck in floodwaters under the bridge on Winchester Street.

Flood in ESSEX, MASSACHUSETTS
From 23-JUN-12 17:08:00 to 23-JUN-12 18:30:00 (EST-5)
Location: SOUTH LYNNFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

The Lynnfield tunnel on Route 1 was closed due to flooding.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 23-JUN-12 14:40:00 to 23-JUN-12 14:40:00 (EST-5)
Location: WILLIAMSBURG
Magnitude: 45.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A tree on Hyde Hill Road was downed by thunderstorm winds.

Thunderstorm Wind in HAMPSHIRE, MASSACHUSETTS
From 23-JUN-12 15:05:00 to 23-JUN-12 15:05:00 (EST-5)
Location: WESTHAMPTON
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires on Route 66 were downed by thunderstorm winds.

Thunderstorm Wind in ESSEX, MASSACHUSETTS
From 23-JUN-12 15:38:00 to 23-JUN-12 15:38:00 (EST-5)
Location: EAST BOXFORD
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires on Glendale Road were downed by thunderstorm winds.  A tree was downed onto a car on Lake Shore Road, blocking the road.

Thunderstorm Wind in NORFOLK, MASSACHUSETTS
From 23-JUN-12 17:10:00 to 23-JUN-12 17:10:00 (EST-5)
Location: COHASSET
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and wires were downed in many locations throughout Cohasset.

Hail in ESSEX, MASSACHUSETTS
From 23-JUN-12 15:50:00 to 23-JUN-12 15:50:00 (EST-5)
Location: EAST BOXFORD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in MIDDLESEX, MASSACHUSETTS
From 23-JUN-12 16:05:00 to 23-JUN-12 16:05:00 (EST-5)
Location: WESTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Penny size hail fell on Route 128.

Thunderstorm Wind in MIDDLESEX, MASSACHUSETTS
From 23-JUN-12 16:07:00 to 23-JUN-12 16:07:00 (EST-5)
Location: ARLINGTON
Magnitude: 45.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A tree on Mystic Lake Drive was downed by thunderstorm winds.

Flood in BRISTOL, MASSACHUSETTS
From 23-JUN-12 17:25:00 to 23-JUN-12 18:30:00 (EST-5)
Location: FALL RIVER
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A car was stuck in flood waters on Milliken Boulevard.  It had to be towed out of the water.

Thunderstorm Wind in NORFOLK, MASSACHUSETTS
From 23-JUN-12 16:11:00 to 23-JUN-12 16:11:00 (EST-5)
Location: WESTWOOD
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Electrical lines on Church Street were downed by thunderstorm winds.

Thunderstorm Wind in NORFOLK, MASSACHUSETTS
From 23-JUN-12 16:11:00 to 23-JUN-12 16:11:00 (EST-5)
Location: NEEDHAM
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large branches on Harris Avenue were downed by thunderstorm winds.

Hail in NORFOLK, MASSACHUSETTS
From 23-JUN-12 16:11:00 to 23-JUN-12 16:11:00 (EST-5)
Location: NEEDHAM
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in ESSEX, MASSACHUSETTS
From 23-JUN-12 16:14:00 to 23-JUN-12 16:14:00 (EST-5)
Location: HAWTHORNE
Magnitude: 40.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Amateur Radio

A large tree limb on Dayton Street was downed by thunderstorm winds.

Thunderstorm Wind in PLYMOUTH, MASSACHUSETTS
From 23-JUN-12 17:15:00 to 23-JUN-12 17:15:00 (EST-5)
Location: SCITUATE
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Large tree limbs were downed by thunderstorms throughout Scituate, including one on South Main Street that was downed onto wires.

Thunderstorm Wind in ESSEX, MASSACHUSETTS
From 23-JUN-12 15:31:00 to 23-JUN-12 15:31:00 (EST-5)
Location: NORTH ANDOVER
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees, limbs, and wires on Second Street, Morris Street, Route 114 Eastbound, and Autumn Road were downed by thunderstorm winds.

Flood in ESSEX, MASSACHUSETTS
From 23-JUN-12 17:04:00 to 23-JUN-12 18:30:00 (EST-5)
Location: PEABODY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

The intersection of Margin and Sheldon Streets was flooded with two feet of water.