Doesn't the progression of the low look a little odd? At hr54 its at the CBBT, hr55 its 10mi offshore, hr56 its off the southern tip of Chincoteague (all fine so far) but then at hr57 it jumps 25mi NW over Deale, MD, moves due N over Cambridge and then moves NE from there. Hr53-54 on 18z was significantly SE of Hr59-60 on the 12z before that random jump NW where it 'corrected' to match 12z's SLP track.