As an occluded surface low moved eastward over northern Ontario, the accompanying warm front advanced from southern Lake Michigan and the Mid Ohio Valley to eastern Lake Erie and the Delaware Bay region between the early afternoon of the 26th and early morning of the 27th. Multiple thunderstorms occurred along the warm front and along outflow boundaries in the warm sector across northern Ohio during the early evening of the 26th through first hour of the 27th. These storms, including a supercell, occurred amidst weak to moderate instability and moderate to strong vertical wind shear.

Thunderstorm Wind in KNOX, OHIO
From 26-JUN-20 17:11:00 to 26-JUN-20 17:14:00 (EST-5)
Location: MT VERNON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A manhole cover was blown off at the intersection of Sandusky and Vine Streets in downtown Mount Vernon. On the south side of Mount Vernon, multiple trees were down along Newark Road at Ames Street and Dixie Drive.

Thunderstorm Wind in CUYAHOGA, OHIO
From 26-JUN-20 22:45:00 to 26-JUN-20 22:51:00 (EST-5)
Location: BAY VLG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down near the northern end of Clague Road in Bay Village. Another tree down at 1466 Wayne Avenue in Lakewood.

Thunderstorm Wind in LAKE, OHIO
From 26-JUN-20 22:40:00 to 26-JUN-20 22:42:00 (EST-5)
Location: PLEASANT VLY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Tree down at the Eagle Road Bridge across the Chagrin River in Willoughby Hills. Another tree down near the I-90/OH 306 interchange in South Mentor. Time of event estimated via radar.

Thunderstorm Wind in CUYAHOGA, OHIO
From 26-JUN-20 23:24:00 to 26-JUN-20 23:30:00 (EST-5)
Location: BEDFORD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees down in Bedford. One tree down in Oakwood.

Thunderstorm Wind in LUCAS, OHIO
From 26-JUN-20 23:14:00 to 26-JUN-20 23:21:00 (EST-5)
Location: (TOL)TOLEDO EXPRESS
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Toledo Express Airport ASOS (i.e. KTOL) measured a peak wind gust of 58 mph from a thunderstorm at 12:14 AM EDT on June 27th. As the storm progressed generally eastward, trees and wires were downed at Garden Road and Crissey Road in Holland around 12:15 AM. At 12:16 AM, a telephone pole was downed at the intersection of North Mall Drive and South McCord Road in Holland, while a tree was downed one mile SSE of Holland. Farther to the east, the same straight-line wind damage path concluded with a couple trees down one mile north of Maumee at 12:21 AM EDT.

Thunderstorm Wind in LUCAS, OHIO
From 26-JUN-20 23:18:00 to 26-JUN-20 23:20:00 (EST-5)
Location: WESTHAVEN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Downed trees and power lines were reported one mile northwest of Ottawa Hills at 12:18 AM EDT. As the thunderstorm continued moving generally eastward, a tree was downed at the intersection of Bentley and Manchester Boulevards in Toledo. This straight-line wind damage path concluded with a downed tree along Latonia Boulevard in Toledo around 12:20 AM EDT.

Thunderstorm Wind in KNOX, OHIO
From 26-JUN-20 17:24:00 to 26-JUN-20 17:30:00 (EST-5)
Location: ARTANNA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree down at intersection of Beckholt and Grove Church Roads north of Martinsburg. Another tree was downed onto a house and car in Bladensburg.