the highest concentration was around the baltimore dwrair. several of these were in the d.c. area. we have one updated in allegheny county. ef0's and a few e f-1's. still dangerous and could cause some significant property damage. as far as the rarity, it's been an active decade. the last 10 years has been active and documented on video. i'm blogging about this on "abc news".com. decade of twisters, going back to la prayed da. and deadly tornado, of course, in 2002 and the university of college park in 2001. we have video and talking the storms, going back a decade right here on "abc news".com. >> it was one year ago today, people in the falseton area, were in the bull's-eye for a, a frightening tornado produced more than a million dollars of property damage. as abc 2 newsexplains, people who live there are still assessing the damage and dealing with the cleanup. >> john coren has seen a few things in his 85 years. how does he rate the storm an f- 1 tornado that barreled through his house last friday? >> the worst. the worst thing i've ever experienced. >> even a week later, the da