Hail in Seneca County, Ohio

Hail up to quarter-size in Tiffin.

At the surface, a low moved north-northeastward from northwestern IN to southwestern Lower MI during the early afternoon through late evening of the 24th. This allowed the trailing cold front to sweep eastward across IN toward the IN/OH border, while the warm front drifted northeastward across northern OH, much of southern Lower MI, western and central Lake Erie, and portions of northwest PA. Within the warm and moist sector, isolated to scattered multicell and occasional supercell thunderstorms moved generally northeastward or eastward across northwest and north-central OH during the late afternoon through early evening hours. These storms produced isolated straight-line wind damage, very isolated severe hail, and a brief tornado as the storms encountered moderate effective bulk shear and MUCAPE, respectively. The briefly tornadic supercell in Lorain County appears to have coincided with favorably-low mixed layer LCL's and an increase in surface-based ESRH tied to the development and strengthening of a southwesterly nocturnal low-level jet at and near 850 mb.