A cold front and upper low crossed the region during the 13th. Steepening lapse rates with the upper low and increasing shear along the front supported afternoon thunderstorm development across northern and eastern Maine. Some of the thunderstorms became severe...producing large hail and damaging winds. Heavy rains also accompanied some of the storms leading to flash flooding.

Hail in PISCATAQUIS, MAINE
From 13-AUG-23 14:14:00 to 13-AUG-23 14:14:00 (EST-5)
Location: WELLINGTON
Magnitude: 1.75 
Reported by: Trained Spotter

Thunderstorm Wind in PISCATAQUIS, MAINE
From 13-AUG-23 14:13:00 to 13-AUG-23 14:13:00 (EST-5)
Location: WELLINGTON
Magnitude: 52.00 EG
Reported by: Trained Spotter

Several trees were toppled by wind gusts estimated at up to 60 mph. One large tree fell on a roof...damaging the roof and solar panels mounted on the roof. Tree limbs were snapped on to power lines leading to power outages.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 14:43:00 to 13-AUG-23 14:43:00 (EST-5)
Location: CARMEL
Magnitude: 52.00 EG
Reported by: Public

Several smaller trees were toppled across Carmel by wind gusts estimated at up to 60 mph. The time is estimated.

Thunderstorm Wind in AROOSTOOK, MAINE
From 13-AUG-23 15:49:00 to 13-AUG-23 15:49:00 (EST-5)
Location: SKERRY
Magnitude: 52.00 EG
Reported by: Park/Forest Service

Around a dozen mature large maple trees were snapped at the base...or uprooted...along Lovejoy Ridge by wind gusts estimated at up to 60 mph. The damage was caused by straight line winds. The time is estimated. The Maine Forest Service conducted the aerial survey of the area.

Hail in PISCATAQUIS, MAINE
From 13-AUG-23 14:09:00 to 13-AUG-23 14:09:00 (EST-5)
Location: KINGSBURY
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in PISCATAQUIS, MAINE
From 13-AUG-23 14:10:00 to 13-AUG-23 14:10:00 (EST-5)
Location: WELLINGTON
Magnitude: 2.00 
Reported by: Public

Hail in PENOBSCOT, MAINE
From 13-AUG-23 15:23:00 to 13-AUG-23 15:23:00 (EST-5)
Location: CHARLESTON
Magnitude: 1.50 
Reported by: Social Media

The time is estimated.

Hail in AROOSTOOK, MAINE
From 13-AUG-23 16:48:00 to 13-AUG-23 16:48:00 (EST-5)
Location: STIMSON
Magnitude: 0.75 
Reported by: NWS Employee

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 14:57:00 to 13-AUG-23 14:57:00 (EST-5)
Location: CARMEL
Magnitude: 52.00 EG
Reported by: Social Media

A large tree was snapped at its base and toppled on to Hampden Road in Carmel by wind gusts estimated at up to 60 mph. The road was blocked. The time is estimated.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 15:03:00 to 13-AUG-23 15:03:00 (EST-5)
Location: TWIN BROOK
Magnitude: 52.00 EG
Reported by: 911 Call Center

Trees were toppled on to wires near Charleston by wind gusts at up to 60 mph. The time is estimated.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 15:17:00 to 13-AUG-23 15:17:00 (EST-5)
Location: SOUTH LEVANT
Magnitude: 52.00 EG
Reported by: Fire Department/Rescue

Trees were toppled on to wires along Pine Tree Road by wind gusts estimated at up to 60 mph. The time is estimated.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 15:30:00 to 13-AUG-23 15:30:00 (EST-5)
Location: CHARLESTON
Magnitude: 56.00 EG
Reported by: Fire Department/Rescue

Several trees were toppled along Bradford Road by wind gusts estimated at up to 65 mph. The trees brought down power lines and the road was blocked. The time is estimated.

Lightning in PENOBSCOT, MAINE
From 13-AUG-23 14:35:00 to 13-AUG-23 14:35:00 (EST-5)
Location: ARNOLD CORNER
Reported by: Public

A lightning strike injured 2 people. The individuals experienced electric shock through their refrigerator. Extent of injuries unknown.

Hail in PENOBSCOT, MAINE
From 13-AUG-23 15:30:00 to 13-AUG-23 15:30:00 (EST-5)
Location: NORTH BRADFORD
Magnitude: 1.25 
Reported by: Social Media

The time is estimated.

Hail in AROOSTOOK, MAINE
From 13-AUG-23 16:42:00 to 13-AUG-23 16:42:00 (EST-5)
Location: SQUA PAN
Magnitude: 0.75 
Reported by: NWS Employee

Flash Flood in PISCATAQUIS, MAINE
From 13-AUG-23 15:00:00 to 13-AUG-23 17:15:00 (EST-5)
Location: KINGSBURY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms with very heavy rain produced localized flash flooding north of Wellington. Up to 3.50 inches of rain fell in several hours. Multiple gravel roads were washed out or damaged due to the flash flooding.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 15:25:00 to 13-AUG-23 15:25:00 (EST-5)
Location: BRADFORD
Magnitude: 56.00 EG
Reported by: Public

Multiple trees were toppled or split for about a mile along Route 11 near Bradford by wind gusts estimated at up to 65 mph. The time is estimated.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 15:23:00 to 13-AUG-23 15:23:00 (EST-5)
Location: LEVANT
Magnitude: 52.00 EG
Reported by: Fire Department/Rescue

Trees were toppled on to power lines by wind gusts estimated at up to 60 mph. The time is estimated.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 15:26:00 to 13-AUG-23 15:26:00 (EST-5)
Location: WEST CHARLESTON
Magnitude: 52.00 EG
Reported by: Law Enforcement

A tree was toppled on to a road...blocking the road...near the Charleston Correctional Facility by wind gusts estimated at up to 60 mph. The time is estimated.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 15:30:00 to 13-AUG-23 15:30:00 (EST-5)
Location: BRADFORD CENTER
Magnitude: 52.00 EG
Reported by: Social Media

A tree was toppled on to power lines along Middle Road by wind gusts estimated at up to 60 mph. The road was blocked. The time is estimated.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 15:30:00 to 13-AUG-23 15:30:00 (EST-5)
Location: BRADFORD CENTER
Magnitude: 52.00 EG
Reported by: Public

A tree was toppled on to power lines by wind gusts estimated at up to 60 mph. The time is estimated.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 15:31:00 to 13-AUG-23 15:31:00 (EST-5)
Location: BRADFORD
Magnitude: 61.00 EG
Reported by: Public

At least 20 trees were toppled...some on to power lines...between the Route 11A split and the Bradford General Store by wind gusts estimated at up to 70 mph. The time is estimated. Power remained out in the area into the 14th.

Flash Flood in PENOBSCOT, MAINE
From 13-AUG-23 15:30:00 to 13-AUG-23 18:00:00 (EST-5)
Location: SOUTH LEVANT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms producing heavy rain led to flash flooding. Up to 3.50 inches of rain fell over several hours. Garland Road was partially blocked and washed out due to overwhelmed culverts. In addition multiple culverts were washed out on Mill Road along the Garland/Charleston town line. Washouts were also reported on Corinth Road and Fernald Road in Garland...with water across other roads. Water was also reported over Kenduskeag Road and Sawyer Road near the Levant/Kenduskeag town line. Puddledock Road...in the area of Paine Road...was flooded and impassible. A road washout was reported on Bradford Road...between Main Road and Puddledock Road. In Charleston...Harris Road was closed and impassible due to flash flooding.

Thunderstorm Wind in PENOBSCOT, MAINE
From 13-AUG-23 14:45:00 to 13-AUG-23 14:45:00 (EST-5)
Location: CARMEL
Magnitude: 52.00 EG
Reported by: Fire Department/Rescue

A very large tree was toppled across a road by wind gusts estimated at up to 60 mph. The time is estimated.