Low pressure crossing southern Canada pushed a trailing cold front toward northern New England during the late afternoon and evening. Ahead of the front, thunderstorm activity quickly turned severe with numerous supercells producing damaging winds and large hail along with 3 tornadoes.

Thunderstorm Wind in CUMBERLAND, MAINE
From 21-JUL-10 19:00:00 to 21-JUL-10 19:04:00 (EST-5)
Location: CAPE ELIZABETH
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm produced a measured wind gust of 64 mph in Cape Elizabeth.

Thunderstorm Wind in YORK, MAINE
From 21-JUL-10 19:11:00 to 21-JUL-10 19:15:00 (EST-5)
Location: KENNEBUNK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm downed trees across Route 1 near Biddeford.

Thunderstorm Wind in CUMBERLAND, MAINE
From 21-JUL-10 18:00:00 to 21-JUL-10 18:04:00 (EST-5)
Location: SOUTH WINDHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm winds collapsed a barn Near Gorham.

Thunderstorm Wind in CUMBERLAND, MAINE
From 21-JUL-10 18:00:00 to 21-JUL-10 18:04:00 (EST-5)
Location: YARMOUTH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm downed large tree limbs in Yarmouth.

Thunderstorm Wind in ANDROSCOGGIN, MAINE
From 21-JUL-10 18:05:00 to 21-JUL-10 18:09:00 (EST-5)
Location: POLAND
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed numerous trees in Poland.

Thunderstorm Wind in CUMBERLAND, MAINE
From 21-JUL-10 18:12:00 to 21-JUL-10 18:16:00 (EST-5)
Location: SOUTH WINDHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm downed numerous trees and powerlines on Libby Avenue and Gray Road near Windham.

Thunderstorm Wind in YORK, MAINE
From 21-JUL-10 18:25:00 to 21-JUL-10 18:30:00 (EST-5)
Location: SHAPLEIGH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm downed numerous trees in Shapleigh.

Thunderstorm Wind in CUMBERLAND, MAINE
From 21-JUL-10 18:30:00 to 21-JUL-10 18:34:00 (EST-5)
Location: GORHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm uprooted multiple large trees with one falling on a house off Wood Road in Gorham.

Thunderstorm Wind in CUMBERLAND, MAINE
From 21-JUL-10 18:47:00 to 21-JUL-10 18:50:00 (EST-5)
Location: HARPSWELL CENTER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm downed trees on Mountain and Reach Roads in Harpswell.

Funnel Cloud in CUMBERLAND, MAINE
From 21-JUL-10 18:15:00 to 21-JUL-10 18:19:00 (EST-5)
Location: STANDISH
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced a funnel cloud in Standish.

Funnel Cloud in YORK, MAINE
From 21-JUL-10 18:15:00 to 21-JUL-10 18:20:00 (EST-5)
Location: HOLLIS CENTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced a funnel cloud in Hollis.

Hail in YORK, MAINE
From 21-JUL-10 18:30:00 to 21-JUL-10 18:33:00 (EST-5)
Location: SANFORD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm produced 1 inch hail in Sanford.

Thunderstorm Wind in CUMBERLAND, MAINE
From 21-JUL-10 15:39:00 to 21-JUL-10 15:41:00 (EST-5)
Location: STANDISH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed trees on powerlines across Westcott Road north of Gorham.

Thunderstorm Wind in CUMBERLAND, MAINE
From 21-JUL-10 17:04:00 to 21-JUL-10 17:07:00 (EST-5)
Location: GORHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm downed trees and wires on Wentworth Road in Windham.

Thunderstorm Wind in SAGADAHOC, MAINE
From 21-JUL-10 17:19:00 to 21-JUL-10 17:23:00 (EST-5)
Location: PHIPPSBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed trees in Parker Head Road in Phippsburg.

Thunderstorm Wind in OXFORD, MAINE
From 21-JUL-10 17:25:00 to 21-JUL-10 17:29:00 (EST-5)
Location: EAST FRYEBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm downed numerous tress on Route 302 from Fryeburg to Bridgton.

Tornado in YORK, MAINE
From 21-JUL-10 17:15:00 to 21-JUL-10 17:20:00 (EST-5)
Location: NEWFIELD
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A tornado touched down in Newfield on the west side of Patterson Road and moved east into Limerick crossing Patterson and Foss roads before lifting off the ground.  The E-F1 tornado was estimated to have maximum winds of 90 mph and cut a path almost 2 miles in length and up to 200 yards wide.  Hundreds of trees were snapped or uprooted by the tornado.  In addition, the tornado damaged several homes and buildings in the area.  Sections of the metal roof of one home were found about 0.2 miles from the house.

Lightning in KNOX, MAINE
From 21-JUL-10 18:25:00 to 21-JUL-10 18:25:00 (EST-5)
Location: ASH PT
Property damage: 70.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning struck a home on Ash Point Road and ignited a fire that did extensive damage to the interior of the home.  The lightning struck the roof of the home and started a fire in an upstairs closet before spreading.  No one was injured in the blaze, but damage was estimated at $70,000.

Thunderstorm Wind in YORK, MAINE
From 21-JUL-10 18:40:00 to 21-JUL-10 18:44:00 (EST-5)
Location: GOODWINS MILLS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm downed numerous large trees in Lyman.

Hail in CUMBERLAND, MAINE
From 21-JUL-10 18:16:00 to 21-JUL-10 18:20:00 (EST-5)
Location: FALMOUTH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced .88 hail in Falmouth.

Tornado in CUMBERLAND, MAINE
From 21-JUL-10 17:48:00 to 21-JUL-10 18:00:00 (EST-5)
Location: WEST GORHAM
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A tornado touched down just west of East Webster Road in Buxton and then moved east into Gorham.  The tornado produced a discontinuous path of damage through Gorham before lifting off the ground near the intersection of Routes 237 and 25.  The tornado snapped or uprooted hundreds of trees along of its track.  The most significant damage was observed near Route 202 where maximum winds were estimated at near 90 mph. The tornado was on the ground for about 5 miles, had a maximum width of about 350 yards, and was classified as an E-F1 based on the estimated wind speed.  The tornado downed trees unto power lines, homes. and cars in the area and caused numerous power outages.  In one instance, farm trailers were moved 50 to 75 feet by the tornado and sheds were destroyed. In Gorham...damage was noted along Finn Parker and Wood Roads...Lovers Lane...Kimball Road...Wentworth Drive...and Lawn and Libby Roads as well as Route 237.

Thunderstorm Wind in SAGADAHOC, MAINE
From 21-JUL-10 19:05:00 to 21-JUL-10 19:15:00 (EST-5)
Location: PARKER HEAD
Magnitude: 70.00 EG
Crop damage: 0.00K
Reported by: NWS Storm Survey

Winds from a severe thunderstorm brought down numerous trees in an area from Phippsburg to Georgetown.   In Phippsburg the most severe damage occurred in and around Parker Head Road and Captain John Parker Road where scattered trees were uprooted or snapped by the storm.  Winds were estimated to have gusted between 60 and 70 mph in the area.
In Georgetown, the severe thunderstorm line winds brought down more than a hundred of trees and damaged one vehicle in the area around Bay Point and Marrtown Roads.  Although some of the damage was scattered...an area just east of Bay Point Road was particularly hard hit.  Winds were estimated to have gusted up to 80 mph in the area.

Tornado in YORK, MAINE
From 21-JUL-10 18:24:00 to 21-JUL-10 18:36:00 (EST-5)
Location: EMERY MILLS
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A tornado touched down between Back and Walnut Hill Roads in Shapleigh and moved east into Alfred before lifting off the ground on the east side of Back Road in Alfred.  The E-F1 tornado was estimated to have maximum winds of 90 mph and cut a path about 5.4 miles in length and up to 200 yards wide.  Damage from the tornado was observed across or near Stone Haven Hill Road and Walnut Hill Road in Shapleigh...and Gebung, Bracket Hill, Gore, Rt 202, Cranberry Meadows and Back Roads in Alfred. The tornado downed hundreds of trees along its path and falling trees knocked down utility lines and snapped power poles in the path.  Several structures were also damaged by falling trees.

Tornado in YORK, MAINE
From 21-JUL-10 17:47:00 to 21-JUL-10 17:48:00 (EST-5)
Location: GROVEVILLE
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A tornado touched down just west of Webster Road in Buxton and then moved east into Gorham.  The tornado produced a discontinuous path of damage through Gorham before lifting off the ground near the intersection of Routes 237 and 25.  The tornado snapped or uprooted hundreds of trees along of its track.  The most significant damage was observed near Route 202 where maximum winds were estimated at near 90 mph. The tornado was on the ground for about 5 miles, had a maximum width of about 350 yards, and was classified as an E-F1 based on the estimated wind speed.  The tornado downed trees unto power lines, homes. and cars in the area and caused numerous power outages.  In one instance, farm trailers were moved 50 to 75 feet by the tornado and sheds were destroyed. In Gorham...damage was noted along Finn Parker and Wood Roads...Lovers Lane...Kimball Road...Wentworth Drive...and Lawn and Libby Roads as well as Route 237.

Thunderstorm Wind in OXFORD, MAINE
From 21-JUL-10 17:47:00 to 21-JUL-10 17:50:00 (EST-5)
Location: GREENWOOD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm downed trees in the roadway on Young Hill Road in Greenwood.

Thunderstorm Wind in ANDROSCOGGIN, MAINE
From 21-JUL-10 17:56:00 to 21-JUL-10 17:59:00 (EST-5)
Location: MECHANIC FALLS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm produced multiple reports of downed trees in Mechanic Falls.

Thunderstorm Wind in YORK, MAINE
From 21-JUL-10 18:51:00 to 21-JUL-10 18:54:00 (EST-5)
Location: OLD ORCHARD BEACH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm downed trees and wires on Willow Avenue in Old Orchard Beach.

Thunderstorm Wind in YORK, MAINE
From 21-JUL-10 18:55:00 to 21-JUL-10 18:59:00 (EST-5)
Location: SACO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm downed trees in Saco.

Thunderstorm Wind in CUMBERLAND, MAINE
From 21-JUL-10 19:02:00 to 21-JUL-10 19:07:00 (EST-5)
Location: SCARBOROUGH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm downed a tree on a vehicle in Scarborough with minor injuries resulting.

Thunderstorm Wind in YORK, MAINE
From 21-JUL-10 19:11:00 to 21-JUL-10 19:15:00 (EST-5)
Location: ARUNDEL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm downed trees on Log Cabin Road near Route 1 in Arundel.

Thunderstorm Wind in KNOX, MAINE
From 21-JUL-10 19:24:00 to 21-JUL-10 19:28:00 (EST-5)
Location: ST GEORGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm downed trees on Turkey Cove Road in Saint George.

Thunderstorm Wind in YORK, MAINE
From 21-JUL-10 18:45:00 to 21-JUL-10 18:45:00 (EST-5)
Location: SACO THURSTON FLD AR
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm produced straight line wind damage in an area just north of Jenkins Road in Saco where about one hundred trees were snapped or uprooted by the wind. Timber in the area had been recently harvested...leaving the remaining trees in and immediately surrounding the harvested area more susceptible to wind damage.  One home in the area sustained minor damage from the wind. Winds were estimated to have gusted between 60 and 70 mph in the damaged area.