EF0 tornado in Beaver County, Pennsylvania

A supercell thunderstorm, embedded within a broken line of thunderstorms, produced a series of tornadoes as it tracked across eastern Ohio, the northern West Virginia panhandle, and western Pennsylvania during the early morning hours on May 8th.

Most of the damage track for this tornado occurred in Ohio and West Virginia. After crossing the border into Beaver County, the last indications of damage were observed along Gas Valley Road where several trees were uprooted.

Potent low pressure tracked across the Upper Midwest from May 7th into May 8th, pushing an occluded boundary across the Upper Ohio Valley. Strong warm and moist advection kept conditions favorable for convection into the overnight hours, with high levels of shear and a surface trough also supporting storm development. Cyclic supercell structures supported a few instances of straight line wind damage, as well as three tornadoes in southwest Pennsylvania. One of these ended up being one of the stronger and more significant tornadoes in the region's recent history, a high-end EF2 that ultimately tracked across 15 miles and three states.