Ivan was the ideal tornado producing track for most of our subforum. The only non-tropical cyclone event that came close to that was the remnants of the April 2011 super outbreak.
The 2012 Derecho is probably the highest end severe we can get in these parts. We ten to get big tornado events from tropical systems, such as Ivan an Isaias.
If you look at PBZ radar, there is some semblance of a meso-low crossing western PA/far northern WV. Might be the reason why we're seeing a bump up in the snow.