A pre-frontal trough ahead of an approaching cold front crossed the region from northwest to southeast on the afternoon of June 20th. A long lived supercell which moved through west central Maine was responsible for numerous wind damage reports and some large hail.

Thunderstorm Wind in SOMERSET, MAINE
From 20-JUN-10 13:10:00 to 20-JUN-10 13:13:00 (EST-5)
Location: SKOWHEGAN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed a large tree and many large branches in Skowhegan.

Thunderstorm Wind in ANDROSCOGGIN, MAINE
From 20-JUN-10 13:15:00 to 20-JUN-10 13:18:00 (EST-5)
Location: NORTH TURNER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm downed numerous large tree branches in North Turner.

Thunderstorm Wind in KENNEBEC, MAINE
From 20-JUN-10 13:30:00 to 20-JUN-10 13:34:00 (EST-5)
Location: EAST MONMOUTH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed trees on Wilson Pond Road blocking traffic.

Thunderstorm Wind in SOMERSET, MAINE
From 20-JUN-10 13:40:00 to 20-JUN-10 13:44:00 (EST-5)
Location: PITTSFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm downed trees in Pittsfield.

Thunderstorm Wind in YORK, MAINE
From 20-JUN-10 13:40:00 to 20-JUN-10 13:43:00 (EST-5)
Location: OGUNQUIT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm carried a dumpster across a parking lot on Beach Street in Ogunquit.

Thunderstorm Wind in YORK, MAINE
From 20-JUN-10 13:40:00 to 20-JUN-10 13:42:00 (EST-5)
Location: OGUNQUIT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed a large tree and numerous large branches on Berwick Road in Ogunquit.

Thunderstorm Wind in WALDO, MAINE
From 20-JUN-10 14:20:00 to 20-JUN-10 14:23:00 (EST-5)
Location: PALERMO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm snapped off four large trees on Route 3 in Palermo.

Thunderstorm Wind in SAGADAHOC, MAINE
From 20-JUN-10 15:02:00 to 20-JUN-10 15:05:00 (EST-5)
Location: BATH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed 2 trees in Bath.

Thunderstorm Wind in KENNEBEC, MAINE
From 20-JUN-10 13:40:00 to 20-JUN-10 13:43:00 (EST-5)
Location: MONMOUTH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed trees blocking traffic on Sanborn Road near Monmouth.

Hail in KENNEBEC, MAINE
From 20-JUN-10 14:05:00 to 20-JUN-10 14:08:00 (EST-5)
Location: FARMINGDALE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm produced 1 inch hail in Gardiner.

Hail in ANDROSCOGGIN, MAINE
From 20-JUN-10 13:32:00 to 20-JUN-10 13:34:00 (EST-5)
Location: NORTH TURNER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm produced 1 inch hail in the vicinity of Bear Pond and Route 219 in North Turner.

Thunderstorm Wind in SOMERSET, MAINE
From 20-JUN-10 12:30:00 to 20-JUN-10 12:33:00 (EST-5)
Location: BINGHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm downed trees north of Solon.

Thunderstorm Wind in OXFORD, MAINE
From 20-JUN-10 13:10:00 to 20-JUN-10 13:14:00 (EST-5)
Location: NORWAY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed trees and power lines in Norway.

Lightning in KENNEBEC, MAINE
From 20-JUN-10 14:00:00 to 20-JUN-10 14:00:00 (EST-5)
Location: WATERVILLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A 20-year-old waitress was struck and injured by lightning when she went outside to roll up her car windows.

Thunderstorm Wind in OXFORD, MAINE
From 20-JUN-10 12:52:00 to 20-JUN-10 12:55:00 (EST-5)
Location: GREENWOOD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed trees just north of Greenwood.