The tornado began a couple miles south of Monroeville in the vicinity of Townline Road 198 and Sand Hill Rd, where there was tree damage. Radar loop and NWS warnings from the evening of June 15, 2023. Storms gradually congealed into a line that produced some hail and straight line wind damage into east central Ohio. This supercell was responsible for 12 tornadoes and numerous instances of large hail, with hail to at least the size of tennis balls reported near Toledo and multiple reports of hail to golf ball sized or larger as the storm continued southeast. A particularly intense supercell (rotating thunderstorm) developed near the Ohio/Michigan border just north of Toledo and tracked across parts of Lucas, Ottawa, Sandusky, Erie, Huron, Seneca, Richland, Ashland, and Wayne Counties. Enhanced shear associated with the low pressure, warm front, and lake breeze boundary near the western lakeshore allowed storms to rotate. Thunderstorms erupted along the cold front near Toledo just before 6:00 PM and moved southeast towards east-central Ohio over the coming hours. A warm front extended southeast of this low pressure along the western Lake Erie shoreline and then down towards central Ohio. A weak surface low pressure developed along this front over southern Michigan earlier in the day and moved southeast across the western tip of Lake Erie during the evening. Overview A cold front moved into northwest Ohio the evening of Thursday, June 15.
