Northern Ohio was within the warm sector during the morning of the 11th through early evening of the 13th as the region remained along the northwestern flank of the Bermuda-Azores subtropical high pressure ridge. Simultaneously, a very slow-moving cold front approached northern Ohio from the Upper Midwest as multiple surface lows moved northeastward along the front. Ahead of the front, six distinct rounds of severe thunderstorms with damaging wind gusts affected northern Ohio between the early morning of the 11th and early evening of the 13th. These storms utilized moderate to strong MUCAPE, moderate to strong DCAPE, and primarily moderate to strong effective bulk shear.

Thunderstorm Wind in SUMMIT, OHIO
From 11-AUG-21 16:57:00 to 11-AUG-21 16:57:00 (EST-5)
Location: TALLMADGE
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Numerous trees and power lines downed in Tallmadge.

Thunderstorm Wind in TRUMBULL, OHIO
From 13-AUG-21 19:44:00 to 13-AUG-21 19:44:00 (EST-5)
Location: MC DONALD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees downed across southern-half of Trumbull County. Time and location estimated via radar.

Thunderstorm Wind in MORROW, OHIO
From 11-AUG-21 15:58:00 to 11-AUG-21 15:58:00 (EST-5)
Location: STEAM CORNERS
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees downed in Steam Corners area.

Thunderstorm Wind in SUMMIT, OHIO
From 11-AUG-21 16:57:00 to 11-AUG-21 16:57:00 (EST-5)
Location: MYERSVILLE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees damaged at Ohio Prestwick Country Club in Uniontown area.

Thunderstorm Wind in TRUMBULL, OHIO
From 11-AUG-21 17:04:00 to 11-AUG-21 17:04:00 (EST-5)
Location: MESOPOTAMIA
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees and power lines downed in Mesopotamia Township.

Thunderstorm Wind in PORTAGE, OHIO
From 11-AUG-21 17:06:00 to 11-AUG-21 17:09:00 (EST-5)
Location: HIRAM
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees and power lines downed in Hiram and Nelson Townships.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:23:00 to 11-AUG-21 16:23:00 (EST-5)
Location: PARMA
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Tree fell onto house and caused minor damage in Parma.

Thunderstorm Wind in SUMMIT, OHIO
From 12-AUG-21 15:14:00 to 12-AUG-21 15:14:00 (EST-5)
Location: SILVER LAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees damaged along the northern shore of Wyoga Lake, just north of Cuyahoga Falls.

Thunderstorm Wind in WAYNE, OHIO
From 13-AUG-21 19:22:00 to 13-AUG-21 19:22:00 (EST-5)
Location: MARSHALLVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree and telephone pole downed about one-mile north of Marshallville.

Thunderstorm Wind in PORTAGE, OHIO
From 11-AUG-21 17:11:00 to 11-AUG-21 17:11:00 (EST-5)
Location: GARRETTSVILLE
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees and power lines downed in Garrettsville.

Thunderstorm Wind in ASHTABULA, OHIO
From 11-AUG-21 17:02:00 to 11-AUG-21 17:02:00 (EST-5)
Location: ASHTABULA
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Power poles were broken in Ashtabula.

Thunderstorm Wind in TRUMBULL, OHIO
From 11-AUG-21 17:25:00 to 11-AUG-21 17:25:00 (EST-5)
Location: KINSMAN
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees and power lines downed in Kinsman Township.

Thunderstorm Wind in TRUMBULL, OHIO
From 11-AUG-21 17:46:00 to 11-AUG-21 17:46:00 (EST-5)
Location: BROOKFIELD
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees and power lines downed in Brookfield Center.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:25:00 to 11-AUG-21 16:25:00 (EST-5)
Location: EAST CLEVELAND
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large tree snapped about one-mile west of Lyndhurst.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:23:00 to 11-AUG-21 16:23:00 (EST-5)
Location: SHAKER HGTS
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Numerous tree limbs and several whole trees downed about one-mile WSW of Shaker Heights.

Thunderstorm Wind in KNOX, OHIO
From 11-AUG-21 16:25:00 to 11-AUG-21 16:25:00 (EST-5)
Location: DANVILLE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees and power lines downed in Danville.

Thunderstorm Wind in OTTAWA, OHIO
From 11-AUG-21 01:45:00 to 11-AUG-21 01:45:00 (EST-5)
Location: GENOA
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees downed and barn roof damaged in Genoa.

Thunderstorm Wind in LAKE, OHIO
From 11-AUG-21 16:30:00 to 11-AUG-21 16:30:00 (EST-5)
Location: MENTOR
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees damaged about one-mile north of Mentor. One tree limb fell onto a vehicle.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:11:00 to 11-AUG-21 16:16:00 (EST-5)
Location: EAGLE CLIFF
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tree downed along Clemens Road, near the Red Roof Inn, in Westlake. Another tree fell onto a house along Hilliard Road in Westlake, just west of the Rocky River border.

Thunderstorm Wind in GEAUGA, OHIO
From 12-AUG-21 09:32:00 to 12-AUG-21 09:38:00 (EST-5)
Location: BAINBRIDGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree branch downed near the intersection of Charles and Snyder Roads, about two-miles southeast of Bainbridge. A tree was downed near the intersection of OH-44 and Starbush Court in Auburn Township.

Thunderstorm Wind in TRUMBULL, OHIO
From 12-AUG-21 10:03:00 to 12-AUG-21 10:03:00 (EST-5)
Location: LOCKWOOD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Several trees downed in North Bloomfield.

Thunderstorm Wind in PORTAGE, OHIO
From 12-AUG-21 15:44:00 to 12-AUG-21 15:44:00 (EST-5)
Location: WINDHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Tree fell onto an above ground swimming pool in Windham, causing heavy damage to pool.

Thunderstorm Wind in LAKE, OHIO
From 11-AUG-21 16:32:00 to 11-AUG-21 16:32:00 (EST-5)
Location: KIRTLAND HILLS
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large tree downed across Sanctuary Road, about one-mile ENE of Kirtland.

Thunderstorm Wind in SUMMIT, OHIO
From 13-AUG-21 18:36:00 to 13-AUG-21 18:36:00 (EST-5)
Location: HUDSON
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Gas station canopy was blown over at the intersection of OH-91 and OH-303 in Hudson.

Thunderstorm Wind in HOLMES, OHIO
From 11-AUG-21 16:33:00 to 11-AUG-21 16:37:00 (EST-5)
Location: GLENMONT
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees and wires downed in Glenmont and about three-miles west of Killbuck.

Thunderstorm Wind in MEDINA, OHIO
From 11-AUG-21 16:44:00 to 11-AUG-21 16:44:00 (EST-5)
Location: WADSWORTH
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter in Wadsworth estimated a peak gust of 65 mph from passing QLCS. Also noted downed tree limbs and shingles blown off roofs.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:46:00 to 11-AUG-21 16:46:00 (EST-5)
Location: OAKWOOD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Large tree limb fell onto a car along Solon Road, about one-mile west of Solon.

Thunderstorm Wind in SUMMIT, OHIO
From 12-AUG-21 15:11:00 to 12-AUG-21 15:14:00 (EST-5)
Location: CUYAHOGA FALLS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree fell onto garage just southwest of downtown Cuyahoga Falls. A large tree limb was snapped near the intersection of Howe Avenue and Tallmadge Road, just southeast of downtown Cuyahoga Falls.

Thunderstorm Wind in MAHONING, OHIO
From 12-AUG-21 16:36:00 to 12-AUG-21 16:36:00 (EST-5)
Location: STRUTHERS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Tree fell onto house on Euclid Ave, about two-miles northeast of Boardman.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:23:00 to 11-AUG-21 16:23:00 (EST-5)
Location: RICHMOND HGTS
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Fallen tree caused major damage to three vehicles about one-mile ESE of Euclid.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:19:00 to 11-AUG-21 16:19:00 (EST-5)
Location: BRATENAHL
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Large tree fell onto vehicle along Hanna Lane in Bratenahl.

Thunderstorm Wind in HANCOCK, OHIO
From 11-AUG-21 07:24:00 to 11-AUG-21 07:24:00 (EST-5)
Location: FINDLAY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large tree limbs snapped and a power pole knocked down about one-mile SSW of Findlay.

Thunderstorm Wind in RICHLAND, OHIO
From 11-AUG-21 08:22:00 to 11-AUG-21 08:22:00 (EST-5)
Location: PLYMOUTH
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Large tree downed onto car and house on south side of Plymouth. Car was damaged.

Thunderstorm Wind in LUCAS, OHIO
From 11-AUG-21 14:28:00 to 11-AUG-21 14:28:00 (EST-5)
Location: VULCAN
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter measured a peak gust of 72 mph from QLCS. Location was about 2 miles WNW of Rossford.

Thunderstorm Wind in LUCAS, OHIO
From 11-AUG-21 14:34:00 to 11-AUG-21 14:34:00 (EST-5)
Location: TOLEDO
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Building with roof damage about two-miles northeast of Rossford.

Thunderstorm Wind in LORAIN, OHIO
From 11-AUG-21 16:08:00 to 11-AUG-21 16:08:00 (EST-5)
Location: ELYRIA
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees snapped and blocking roadways in Elyria.

Thunderstorm Wind in LUCAS, OHIO
From 11-AUG-21 14:24:00 to 11-AUG-21 14:24:00 (EST-5)
Location: OTTAWA HILLS
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees damaged and power poles broken about 3.5-miles NNE of Ottawa Hills.

Thunderstorm Wind in RICHLAND, OHIO
From 11-AUG-21 16:04:00 to 11-AUG-21 16:04:00 (EST-5)
Location: MANSFIELD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large trees downed in Mansfield.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:11:00 to 11-AUG-21 16:13:00 (EST-5)
Location: BAY VLG
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Off-duty NWS meteorologist estimated a peak gust of 75 mph two-miles WNW of Bay Village. Extensive tree and power line damage was reported across Bay Village. A large tree fell onto a home and caused roof damage about two-miles WNW of Rocky River.

Thunderstorm Wind in KNOX, OHIO
From 11-AUG-21 16:23:00 to 11-AUG-21 16:23:00 (EST-5)
Location: MT VERNON
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees and power lines downed in Mount Vernon.

Thunderstorm Wind in OTTAWA, OHIO
From 11-AUG-21 01:46:00 to 11-AUG-21 01:46:00 (EST-5)
Location: MARTIN
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A personal weather station in Martin recorded a peak gust of 74 mph from a thunderstorm.

Thunderstorm Wind in HANCOCK, OHIO
From 11-AUG-21 07:24:00 to 11-AUG-21 07:24:00 (EST-5)
Location: FINDLAY
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees down in Findlay.

Thunderstorm Wind in HURON, OHIO
From 11-AUG-21 08:19:00 to 11-AUG-21 08:19:00 (EST-5)
Location: WILLARD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees down in Willard.

Thunderstorm Wind in OTTAWA, OHIO
From 11-AUG-21 14:59:00 to 11-AUG-21 14:59:00 (EST-5)
Location: OAK HARBOR
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Roof damage to home in Oak Harbor. Numerous shingles were torn off.

Thunderstorm Wind in OTTAWA, OHIO
From 11-AUG-21 14:59:00 to 11-AUG-21 14:59:00 (EST-5)
Location: PUT IN BAY
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and power lines down on South Bass Island.

Hail in HANCOCK, OHIO
From 11-AUG-21 14:45:00 to 11-AUG-21 14:45:00 (EST-5)
Location: MT BLANCHARD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny-size hail in Mount Blanchard.

Thunderstorm Wind in HURON, OHIO
From 11-AUG-21 08:22:00 to 11-AUG-21 08:22:00 (EST-5)
Location: WILLARD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees down about three-miles northeast of Willard.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:21:00 to 11-AUG-21 16:21:00 (EST-5)
Location: BROOKLYN
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Power poles snapped in half along West 130th Street, about one-mile southwest of Linndale.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:23:00 to 11-AUG-21 16:23:00 (EST-5)
Location: WILLOWICK
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Large tree fell onto house and created hole in roof about one-mile NNE of Euclid.

Thunderstorm Wind in ERIE, OHIO
From 11-AUG-21 15:22:00 to 11-AUG-21 15:22:00 (EST-5)
Location: KELLEYS IS
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public report of a peak gust of 67 mph from QLCS. Gust was recorded by personal weather station on Kelleys Island.

Thunderstorm Wind in KNOX, OHIO
From 11-AUG-21 16:20:00 to 11-AUG-21 16:20:00 (EST-5)
Location: FREDERICKTOWN
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees and power lines downed in Fredericktown.

Thunderstorm Wind in RICHLAND, OHIO
From 11-AUG-21 16:13:00 to 11-AUG-21 16:13:00 (EST-5)
Location: BUTLER
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated peak gust of 70 mph from QLCS in Butler.

Thunderstorm Wind in MARION, OHIO
From 11-AUG-21 15:32:00 to 11-AUG-21 15:32:00 (EST-5)
Location: MARION
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees down about one-mile ENE of Marion.

Thunderstorm Wind in RICHLAND, OHIO
From 11-AUG-21 15:46:00 to 11-AUG-21 15:46:00 (EST-5)
Location: PLYMOUTH
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees downed in Plymouth. One home had severe damage, including a collapsed exterior wall. Detached garage was damaged heavily.

Thunderstorm Wind in MORROW, OHIO
From 11-AUG-21 15:53:00 to 11-AUG-21 15:53:00 (EST-5)
Location: MT GILEAD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees downed and metal roof damaged in Mount Gilead.

Thunderstorm Wind in CUYAHOGA, OHIO
From 11-AUG-21 16:18:00 to 11-AUG-21 16:25:00 (EST-5)
Location: LAKEWOOD
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A snapped tree fell onto a garage in Lakewood and a tree fell onto a truck about three-miles NNE of Linndale. Farther east along the same straight-line wind damage path, multiple trees were snapped and the roof was torn off a warehouse in the Gordon Square District of Cleveland.

Thunderstorm Wind in LORAIN, OHIO
From 11-AUG-21 16:00:00 to 11-AUG-21 16:00:00 (EST-5)
Location: AVON LAKE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Received video on Twitter of numerous trees snapped in half in Avon Lake.