Thunderstorm Wind in Wyandot County, Ohio

Trees downed in Harpster.

At the surface, a cold front moved from the southern Great Lakes region to the Upper and Middle Ohio Valley during the early afternoon through late evening hours of the 26th as a low moved east-northeastward from southern Quebec to the Gulf of Saint Lawrence. Along and ahead of the front, scattered multicell and isolated supercell thunderstorms impacted northern Ohio as the storms persisted generally eastward or southeastward during the late afternoon through mid-evening hours of the 26th, amidst moderate to strong effective bulk shear and weak to moderate MUCAPE. The storms produced sporadic straight-line convective wind damage and severe hail. Two weak tornadoes occurred; one in Morrow County and the other in Knox County, where mixed layer LCL's were favorably-low and surface-based ESRH was maximized due to southwesterly low-level jet development.