There is a slight risk for severe thunderstorms from eastern Ohio into Central Pennsylvania and a marginal risk for thunderstorms from the upper Ohio Valley into western Pennsylvania.
Visible satellite imagery suggests ample diabatic heating will spread from Ohio into Pennsylvania as a weak convective cluster north of Pittsburgh shifts eastward and clouds diminish from the west. Although low-level moisture has decreased in the wake of a downstream front along the Atlantic seaboard, surface dew point
values in the mid-upper 60s will contribute to MLCAPE of 1000-1500 J/kg across the area. Large-scale NWP and CAM model guidance exhibit considerable agreement indicating storms will develop over eastern Ohio during the early afternoon and spread into Pennsylvania during the mid-late afternoon. Steep lapse rates will promote
the development of hail with stronger cells, while 30-40 kt flow in the 700-500 MB layer coupled with drier air above the PBL will support the potential for damaging gusts as mid-level westerly momentum is transferred downward to the surface. The severe threat should diminish by early evening.
It is best to stay up to date with your local radar and the NWS in the case of the issuance of any watches or warnings that may be issued. Severe threats may diminish like stated above as the cells lose strength and or break apart.