An upper level disturbance moved across northern Ohio during the day on July 18th. Isolated severe thunderstorms fired up around lunchtime that day. As the afternoon progressed, the areal coverage and intensity of the thunderstorms increased significantly. A large complex of thunderstorms entered northwest Ohio during the mid afternoon hours and marched to the east-southeast. As these storms progressed across the state, they organized into a squall line causing substantial wind damage in the wake of its path.

Thunderstorm Wind in SANDUSKY, OHIO
From 18-JUL-11 13:10:00 to 18-JUL-11 13:10:00 (EST-5)
Location: LINDSEY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed numerous large tree limbs and branches.

Hail in OTTAWA, OHIO
From 18-JUL-11 14:40:00 to 18-JUL-11 14:56:00 (EST-5)
Location: ROCKY RIDGE
Magnitude: 0.25 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms produced a swath of pea sized hail.

Thunderstorm Wind in OTTAWA, OHIO
From 18-JUL-11 14:45:00 to 18-JUL-11 14:45:00 (EST-5)
Location: OAK HARBOR
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed a few power poles in the area.

Thunderstorm Wind in HANCOCK, OHIO
From 18-JUL-11 16:41:00 to 18-JUL-11 16:41:00 (EST-5)
Location: FINDLAY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Thunderstorm winds downed a few large tree limbs and downed two power lines.

Hail in PORTAGE, OHIO
From 18-JUL-11 15:41:00 to 18-JUL-11 15:41:00 (EST-5)
Location: MANTUA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms produced quarter size hail.

Thunderstorm Wind in PORTAGE, OHIO
From 18-JUL-11 15:38:00 to 18-JUL-11 15:47:00 (EST-5)
Location: MANTUA
Magnitude: 63.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed a few large tree limbs. A 73mph wind gust was measured during this event.

Thunderstorm Wind in SENECA, OHIO
From 18-JUL-11 16:00:00 to 18-JUL-11 16:00:00 (EST-5)
Location: TIFFIN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed several large tree branches.

Thunderstorm Wind in HANCOCK, OHIO
From 18-JUL-11 16:41:00 to 18-JUL-11 16:41:00 (EST-5)
Location: FINDLAY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed a few large trees and several large tree limbs in the area.

Thunderstorm Wind in WOOD, OHIO
From 18-JUL-11 17:05:00 to 18-JUL-11 17:15:00 (EST-5)
Location: BRADNER
Magnitude: 50.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A supercell thunderstorm tracked across Wood County, producing substantial damage. Downburst winds caused significant damage at an area farm. The tin roof covering the feedlot and livestock area was peeled off. A few outbuildings on the property were destroyed. No livestock were injured or killed during this event. Portions of the roof, covering one barn on the property, were ripped off as well. Another barn on the property was reportedly destroyed. Several large trees were uprooted on the property. The residence sustained damage as a result of the uprooted trees. The property owner estimated the damage to be around $20,000. Elsewhere, numerous reports of uprooted trees and overturned recreational vehicles in the area were recorded. There were no reports of injuries during this downburst wind event.

Thunderstorm Wind in CUYAHOGA, OHIO
From 18-JUL-11 17:00:00 to 18-JUL-11 17:00:00 (EST-5)
Location: NORTH ROYALTON
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds snapped the upper half of a 60ft-tall tree. Large sections of a black willow tree were snapped off as a result of the thunderstorm winds. Several other trees in the area were downed during this event.

Thunderstorm Wind in OTTAWA, OHIO
From 18-JUL-11 14:50:00 to 18-JUL-11 14:50:00 (EST-5)
Location: GENOA
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds caused widespread wind damage in the area. Numerous trees and limbs were downed. Several power lines were downed during this event as well.

Thunderstorm Wind in WOOD, OHIO
From 18-JUL-11 16:15:00 to 18-JUL-11 16:15:00 (EST-5)
Location: BRADNER
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds uprooted a large tree.

Thunderstorm Wind in LUCAS, OHIO
From 18-JUL-11 15:30:00 to 18-JUL-11 15:30:00 (EST-5)
Location: IRONVILLE
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed several trees and power lines.