A very strong cold front moved across the Upper Ohio Valley during the evening hours of August 24th and early morning hours of the 25th.  Showers and thunderstorms  developed in association with this front late in the evening of the 24th and continued into the early morning hours of the 25th.  Strong downburst winds caused damage in Huron and Sandusky Counties.  A tornado touched down in Geauga County.

Hail in SUMMIT, OHIO
From 24-AUG-11 23:50:00 to 24-AUG-11 23:50:00 (EST-5)
Location: BARBERTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter sized hail was observed.

Thunderstorm Wind in MEDINA, OHIO
From 24-AUG-11 23:50:00 to 24-AUG-11 23:50:00 (EST-5)
Location: MEDINA
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed a couple large tree limbs.

Thunderstorm Wind in PORTAGE, OHIO
From 25-AUG-11 00:00:00 to 25-AUG-11 00:00:00 (EST-5)
Location: AURORA
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds downed a few trees.

Hail in PORTAGE, OHIO
From 25-AUG-11 00:10:00 to 25-AUG-11 00:10:00 (EST-5)
Location: ATWATER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nickel sized hail was observed.

Hail in SUMMIT, OHIO
From 25-AUG-11 00:10:00 to 25-AUG-11 00:17:00 (EST-5)
Location: CUYAHOGA FALLS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny sized hail was observed.

Thunderstorm Wind in LORAIN, OHIO
From 24-AUG-11 23:10:00 to 24-AUG-11 23:10:00 (EST-5)
Location: EAST CARLISLE
Magnitude: 65.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A thunderstorm downburst with winds estimated to be at least 75 mph produced a three mile long damage path south and southeast of Elyria.  Dozens of trees were toppled along the damage path.

Tornado in GEAUGA, OHIO
From 24-AUG-11 23:40:00 to 24-AUG-11 23:50:00 (EST-5)
Location: SCOTLAND
Tornado F-scale: EF1
Property damage: 300.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF1 tornado touched down west of Chesterland just to the north of the intersection of U.S. Route 322 and Caves Road.  The tornado then traveled east southeast through Chesterland and finally lifted north of the intersection of Sperry and Cedar Roads.  The damage path was nearly three miles in length and up to 50 yards in width.  Dozens of trees were downed along the damage path.  Some homes and businesses in Chesterland sustained roof and siding damage.  Many windows were also blown out.

Thunderstorm Wind in TRUMBULL, OHIO
From 25-AUG-11 00:25:00 to 25-AUG-11 00:25:00 (EST-5)
Location: CHAMPION
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed a few trees.

Thunderstorm Wind in TRUMBULL, OHIO
From 25-AUG-11 00:35:00 to 25-AUG-11 00:35:00 (EST-5)
Location: KINSMAN
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed a few trees.

Thunderstorm Wind in TRUMBULL, OHIO
From 25-AUG-11 00:35:00 to 25-AUG-11 00:35:00 (EST-5)
Location: BROOKFIELD
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed a few trees.

Hail in ASHTABULA, OHIO
From 24-AUG-11 23:45:00 to 24-AUG-11 23:45:00 (EST-5)
Location: GENEVA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Quarter sized hail was reported.

Thunderstorm Wind in SENECA, OHIO
From 24-AUG-11 22:49:00 to 24-AUG-11 22:49:00 (EST-5)
Location: ATTICA
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Thunderstorm winds knocked a tree down on top of a house.

Thunderstorm Wind in HURON, OHIO
From 24-AUG-11 22:50:00 to 24-AUG-11 22:53:00 (EST-5)
Location: WAKEMAN
Magnitude: 65.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm downburst winds estimated to be at least 75 mph toppled over three dozen trees along a mile long damage path in the Wakeman area.

Thunderstorm Wind in CRAWFORD, OHIO
From 25-AUG-11 03:25:00 to 25-AUG-11 03:25:00 (EST-5)
Location: GALION
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed several large tree limbs.

Thunderstorm Wind in SANDUSKY, OHIO
From 24-AUG-11 22:10:00 to 24-AUG-11 22:10:00 (EST-5)
Location: FREMONT
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds knocked some canopies and large tents down at the county fairgrounds.

Thunderstorm Wind in HURON, OHIO
From 24-AUG-11 22:57:00 to 24-AUG-11 22:57:00 (EST-5)
Location: NORWALK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated at 60 mph.

Thunderstorm Wind in OTTAWA, OHIO
From 24-AUG-11 22:33:00 to 24-AUG-11 22:33:00 (EST-5)
Location: PORT CLINTON
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed numerous large tree limbs.

Thunderstorm Wind in HURON, OHIO
From 24-AUG-11 22:59:00 to 24-AUG-11 22:59:00 (EST-5)
Location: NORWALK
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds estimated at 60 mph downed a couple large tree limbs.

Thunderstorm Wind in WOOD, OHIO
From 24-AUG-11 21:50:00 to 24-AUG-11 21:50:00 (EST-5)
Location: LUCKEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated at 60 mph.

Hail in WOOD, OHIO
From 24-AUG-11 21:50:00 to 24-AUG-11 21:50:00 (EST-5)
Location: LUCKEY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel sized hail was observed.

Thunderstorm Wind in HANCOCK, OHIO
From 24-AUG-11 22:10:00 to 24-AUG-11 22:10:00 (EST-5)
Location: (FDY)FINDLAY ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

An automated sensor measured a 58 mph thunderstorm wind gust.

Thunderstorm Wind in CUYAHOGA, OHIO
From 25-AUG-11 00:45:00 to 25-AUG-11 00:45:00 (EST-5)
Location: BRATENAHL
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm winds downed many trees on the east side of Cleveland.

Thunderstorm Wind in CUYAHOGA, OHIO
From 25-AUG-11 00:54:00 to 25-AUG-11 00:54:00 (EST-5)
Location: BROOKLYN
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm winds downed several trees along West 130th Street.

Thunderstorm Wind in RICHLAND, OHIO
From 24-AUG-11 23:05:00 to 24-AUG-11 23:05:00 (EST-5)
Location: SHILOH
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated at 60 mph.

Thunderstorm Wind in LORAIN, OHIO
From 24-AUG-11 23:10:00 to 24-AUG-11 23:10:00 (EST-5)
Location: OBERLIN
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm winds downed several trees.

Thunderstorm Wind in WYANDOT, OHIO
From 24-AUG-11 22:55:00 to 24-AUG-11 22:55:00 (EST-5)
Location: UPPER SANDUSKY
Magnitude: 50.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed several large tree limbs.

Thunderstorm Wind in LORAIN, OHIO
From 24-AUG-11 23:22:00 to 24-AUG-11 23:22:00 (EST-5)
Location: FIELDS
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

An automated sensor measured a 59 knot thunderstorm wind gust.

Hail in LORAIN, OHIO
From 24-AUG-11 23:08:00 to 24-AUG-11 23:08:00 (EST-5)
Location: LORAIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny sized hail was observed.

Thunderstorm Wind in CUYAHOGA, OHIO
From 24-AUG-11 23:32:00 to 24-AUG-11 23:40:00 (EST-5)
Location: CLEVELAND
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed many trees and large limbs along the Lake Erie shoreline.

Thunderstorm Wind in TRUMBULL, OHIO
From 25-AUG-11 00:20:00 to 25-AUG-11 00:35:00 (EST-5)
Location: WEST FARMINGTON
Magnitude: 53.00 MG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A thunderstorm downburst caused a path of damage from West Farmington to near Bristolville.  Over two dozen trees were downed along the damage path.  A home in West Farmington sustained major roof damage.  A 61 mph thunderstorm wind gust was measured at Bristolville.

Thunderstorm Wind in SENECA, OHIO
From 24-AUG-11 22:30:00 to 24-AUG-11 22:30:00 (EST-5)
Location: TIFFIN
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed several trees in Tiffin.  At least two homes were damaged by the fallen trees.

Thunderstorm Wind in SENECA, OHIO
From 24-AUG-11 22:49:00 to 24-AUG-11 22:49:00 (EST-5)
Location: TIFFIN
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds knocked a tree down on top of a house.

Thunderstorm Wind in SANDUSKY, OHIO
From 24-AUG-11 22:35:00 to 24-AUG-11 22:37:00 (EST-5)
Location: BELLEVUE
Magnitude: 65.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A thunderstorm downburst caused considerable damage in Bellevue.  Dozens of trees were toppled by winds estimated to be at least 75 mph.  A damage path around a mile long was observed in both the Sandusky and Huron County portions of the city.  A few houses and vehicles were damaged by downed trees and limbs.

Thunderstorm Wind in HURON, OHIO
From 24-AUG-11 22:37:00 to 24-AUG-11 22:39:00 (EST-5)
Location: STRONGS RIDGE
Magnitude: 65.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A thunderstorm downburst caused considerable damage in Bellevue. Dozens of trees were toppled by winds estimated to be at least 75 mph. A damage path around a mile long was observed in both the Sandusky and Huron County portions of the city. A few houses and vehicles were damaged by downed trees and limbs.

Thunderstorm Wind in HURON, OHIO
From 24-AUG-11 22:50:00 to 24-AUG-11 22:55:00 (EST-5)
Location: NORWALK
Magnitude: 50.00 EG
Property damage: 45.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed many large trees in Norwalk.  At least one home was damaged by a fallen tree.

Hail in ASHTABULA, OHIO
From 24-AUG-11 23:00:00 to 24-AUG-11 23:00:00 (EST-5)
Location: GENEVA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Quarter sized hail was reported.