Severe thunderstorms with damaging winds and large hail occurred across northern Aroostook county during the late afternoon of the 12th. Isolated flash flooding also occurred across portions of the Saint John Valley. The storms developed along a slow moving frontal boundary.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 15:00:00 to 12-JUL-11 15:00:00 (EST-5)
Location: FRENCHVILLE UPPER
Magnitude: 52.00 EG
Reported by: Utility Company

A large tree was toppled on to power lines on Main Street in Frenchville by wind gusts estimated at 60 mph.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 15:15:00 to 12-JUL-11 15:15:00 (EST-5)
Location: ALLAGASH
Magnitude: 56.00 EG
Reported by: COOP Observer

Numerous trees were toppled and snapped by wind gusts estimated at 65 mph. The falling trees also brought down power lines.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 15:21:00 to 12-JUL-11 15:21:00 (EST-5)
Location: ST FRANCIS
Magnitude: 52.00 EG
Reported by: Trained Spotter

Trees were toppled on to power lines by wind gusts estimated at 60 mph.

Flash Flood in AROOSTOOK, MAINE
From 12-JUL-11 15:30:00 to 12-JUL-11 17:30:00 (EST-5)
Location: CLEVELAND SIDING
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms producing 1.00 to 2.00 inches of rain per hour produced flash flooding. Portions of Cleveland Avenue were washed out due to the flash flooding with the road closed for a time.

Hail in AROOSTOOK, MAINE
From 12-JUL-11 15:35:00 to 12-JUL-11 15:35:00 (EST-5)
Location: HAMLIN
Magnitude: 1.00 
Reported by: Law Enforcement

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 15:45:00 to 12-JUL-11 15:45:00 (EST-5)
Location: EAGLE LAKE
Magnitude: 52.00 EG
Reported by: Trained Spotter

Trees were toppled on to power lines by wind gusts estimated at 60 mph.

Flash Flood in AROOSTOOK, MAINE
From 12-JUL-11 15:45:00 to 12-JUL-11 15:45:00 (EST-5)
Location: ST DAVID
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms producing 1.00 to 2.00 inches of rain per hour produced flash flooding. Portions of the Beaulieu Road were washed out and closed to traffic for a time.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 16:00:00 to 12-JUL-11 16:00:00 (EST-5)
Location: EAGLE LAKE
Magnitude: 52.00 EG
Reported by: Utility Company

Trees were toppled along Route 11 by wind gusts estimated at 60 mph.

Flash Flood in AROOSTOOK, MAINE
From 12-JUL-11 16:15:00 to 12-JUL-11 16:15:00 (EST-5)
Location: ST DAVID
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms producing 1.00 to 2.00 inches of rain per hour produced flash flooding. Portions of Route 1 were washed out around Grand Isle with debris washed across the road in other areas.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 16:15:00 to 12-JUL-11 16:15:00 (EST-5)
Location: PORTAGE
Magnitude: 52.00 EG
Reported by: Trained Spotter

A large tree was toppled by wind gusts estimated at 60 mph.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 16:25:00 to 12-JUL-11 16:25:00 (EST-5)
Location: WASHBURN
Magnitude: 52.00 EG
Reported by: Utility Company

Trees were toppled and snapped along Route 164 between Washburn and Crouseville by wind gusts estimated at 60 mph.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 16:30:00 to 12-JUL-11 16:30:00 (EST-5)
Location: (PQI)PRESQUE ISLE AR
Magnitude: 52.00 EG
Reported by: NWS Employee

Trees were toppled and snapped along Parsons Road by wind gusts estimated at 60 mph.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 16:30:00 to 12-JUL-11 16:30:00 (EST-5)
Location: PRESQUE ISLE
Magnitude: 52.00 EG
Reported by: NWS Employee

All the flag poles at the Family Christian Center were bent over due to wind gusts estimated at 60 mph.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 16:30:00 to 12-JUL-11 16:30:00 (EST-5)
Location: PRESQUE ISLE
Magnitude: 52.00 EG
Reported by: NWS Employee

A large tree was toppled along Route 1 by wind gusts estimated at 60 mph.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 16:35:00 to 12-JUL-11 16:35:00 (EST-5)
Location: PRESQUE ISLE
Magnitude: 52.00 EG
Reported by: Law Enforcement

A large tree was toppled on the Spragueville Road by wind gusts estimated at 60 mph.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 16:38:00 to 12-JUL-11 16:38:00 (EST-5)
Location: PRESQUE ISLE
Magnitude: 52.00 EG
Reported by: Law Enforcement

A large tree was toppled on to power lines on the Fort Road by wind gusts estimated at 60 mph.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 16:38:00 to 12-JUL-11 16:38:00 (EST-5)
Location: CROUSEVILLE
Magnitude: 52.00 EG
Reported by: Law Enforcement

A large tree was toppled on the Washburn Road by wind gusts estimated at 60 mph.

Flash Flood in AROOSTOOK, MAINE
From 12-JUL-11 15:45:00 to 12-JUL-11 15:45:00 (EST-5)
Location: SINCLAIR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms producing 1.00 to 2.00 inches of rain per hour produced flash flooding. Portions of Route 162 around Sinclair were washed out and closed to traffic for a time.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 15:10:00 to 12-JUL-11 15:10:00 (EST-5)
Location: DICKEY
Magnitude: 56.00 EG
Reported by: Park/Forest Service

Numerous trees were toppled and snapped along Route 161 by wind gusts estimated at 65 mph. Portions of Route 161 were blocked due to fallen trees.

Thunderstorm Wind in AROOSTOOK, MAINE
From 12-JUL-11 16:30:00 to 12-JUL-11 16:30:00 (EST-5)
Location: WINTERVILLE
Magnitude: 52.00 EG
Reported by: Law Enforcement

A large tree was toppled on Route 11 by wind gusts estimated at 60 mph.