Thunderstorms developed across the region during the late afternoon and evening with a surface trof and upper disturbance. Severe thunderstorms produced large hail and damaging winds across mostly northern and central portions of the region. Localized flash flooding also occurred across northeast Aroostook county. Lightning injured two campers at Acadia National Park.

Hail in AROOSTOOK, MAINE
From 29-JUN-12 17:06:00 to 29-JUN-12 17:06:00 (EST-5)
Location: LIMESTONE
Magnitude: 1.25 
Reported by: NWS Employee

Hail in AROOSTOOK, MAINE
From 29-JUN-12 17:15:00 to 29-JUN-12 17:15:00 (EST-5)
Location: CARSON
Magnitude: 1.50 
Reported by: Trained Spotter

Thunderstorm Wind in AROOSTOOK, MAINE
From 29-JUN-12 17:15:00 to 29-JUN-12 17:15:00 (EST-5)
Location: CARIBOU
Magnitude: 52.00 EG
Reported by: NWS Employee

Scattered tree damage was reported across Caribou by wind gusts estimated at 60 mph.

Hail in AROOSTOOK, MAINE
From 29-JUN-12 17:36:00 to 29-JUN-12 17:36:00 (EST-5)
Location: WASHBURN
Magnitude: 1.75 
Reported by: Public

Flash Flood in AROOSTOOK, MAINE
From 29-JUN-12 18:10:00 to 29-JUN-12 18:40:00 (EST-5)
Location: JEMTLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms with rainfall rates up to 2.00 inches per hour produced localized flash flooding around New Sweden. Numerous roads were washed out around New Sweden. Madawaska Road was also flooded in spots.

Thunderstorm Wind in AROOSTOOK, MAINE
From 29-JUN-12 18:10:00 to 29-JUN-12 18:10:00 (EST-5)
Location: PRESQUE ISLE
Magnitude: 52.00 EG
Reported by: NWS Employee

A few large trees were toppled by wind gusts estimated at 60 mph. The time is estimated.

Thunderstorm Wind in PENOBSCOT, MAINE
From 29-JUN-12 18:20:00 to 29-JUN-12 18:20:00 (EST-5)
Location: GRINDSTONE
Magnitude: 52.00 EG
Reported by: Law Enforcement

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

Thunderstorm Wind in AROOSTOOK, MAINE
From 29-JUN-12 18:22:00 to 29-JUN-12 18:22:00 (EST-5)
Location: FT FAIRFIELD
Magnitude: 61.00 EG
Reported by: NWS Storm Survey

Extensive tree damage was reported at...and within the vicinity of...the Aroostook Valley Country Club. Dozens of trees...many large and old...were toppled by straightline downburst wind gusts estimated at up to 70 mph.

Hail in AROOSTOOK, MAINE
From 29-JUN-12 18:22:00 to 29-JUN-12 18:22:00 (EST-5)
Location: FT FAIRFIELD
Magnitude: 1.00 
Reported by: NWS Employee

Thunderstorm Wind in AROOSTOOK, MAINE
From 29-JUN-12 17:35:00 to 29-JUN-12 17:35:00 (EST-5)
Location: GRIMES MILL
Magnitude: 56.00 EG
Reported by: Law Enforcement

Trees were toppled on the Grimes Road...between Caribou and Fort Fairfield...by wind gusts estimated at 65 mph. The time is estimated.

Thunderstorm Wind in PENOBSCOT, MAINE
From 29-JUN-12 18:45:00 to 29-JUN-12 18:45:00 (EST-5)
Location: CHAMBERLAINS
Magnitude: 52.00 EG
Reported by: Law Enforcement

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

Lightning in HANCOCK, MAINE
From 29-JUN-12 20:30:00 to 29-JUN-12 20:30:00 (EST-5)
Location: BAR HARBOR
Reported by: Park/Forest Service

Lightning injured 2 campers (1 male, 1 female) at the Blackwoods campground at Acadia National Park. The campers were in a tent when ball lightning struck a vehicle 30 feet away which then arced across to the tent striking both campers. The campers were transported to the hospital then released. The time of the incident is estimated.

Thunderstorm Wind in AROOSTOOK, MAINE
From 29-JUN-12 16:20:00 to 29-JUN-12 16:20:00 (EST-5)
Location: DAAQUAM
Magnitude: 52.00 EG
Reported by: Other Federal Agency

Several large trees were toppled by wind gusts estimated at 60 mph.

Hail in AROOSTOOK, MAINE
From 29-JUN-12 16:25:00 to 29-JUN-12 16:45:00 (EST-5)
Location: DAAQUAM
Magnitude: 1.00 
Reported by: Other Federal Agency

Hail up to quarter size lasted for around 20 minutes.

Hail in AROOSTOOK, MAINE
From 29-JUN-12 17:05:00 to 29-JUN-12 17:05:00 (EST-5)
Location: LIMESTONE
Magnitude: 1.50 
Reported by: Public

Hail in AROOSTOOK, MAINE
From 29-JUN-12 17:06:00 to 29-JUN-12 17:06:00 (EST-5)
Location: CONNOR
Magnitude: 1.75 
Reported by: Public

Thunderstorm Wind in AROOSTOOK, MAINE
From 29-JUN-12 18:22:00 to 29-JUN-12 18:22:00 (EST-5)
Location: FT FAIRFIELD
Magnitude: 56.00 EG
Reported by: NWS Employee

Trees were toppled by wind gusts estimated at 65 mph.

Hail in AROOSTOOK, MAINE
From 29-JUN-12 18:10:00 to 29-JUN-12 18:10:00 (EST-5)
Location: PRESQUE ISLE
Magnitude: 1.00 
Reported by: NWS Employee

Quarter size hail was reported on the East Presque Isle Road. The time is estimated.