I saw it. Seems like we're getting more and more tornados in this area. I'm in a heavily populated area and if one ever hit Philly where I am I can't imagine the destruction it would do.
Philly's part of a mini-tornado alley that stretches from York eastward. I've been around more tornados living up here for 18 years than I did living in Texas, Missouri and Oklahoma. However, most of the tornadoes here are dinkers - a F3 is pretty rare. Usually they are no worse than an F1.
I know where you are.I use to live in Philly.I saw a twister coming down the driveway at our thrift store in Bensalem.We stood at the door with our mouths open because it formed that fast and was small but coming towards us.It turned and hit a couple of places on Street Rd.Never saw anything like it.