I believe that area in the GOM is a 3rd or 4th low that spun up from the broad trough that everyone was talking about last week & last weekend. If you look back many posts, HankFrank, Clark, and others (Steve, I think; maybe Ron) discussed the possibility of 3 distinct lows forming along that trough. At least three did form, although the one currently in the GOM may actually be a fourth (I believe the third dissipated a day or two ago, but I may be incorrect), or it may be the remains of that third low. (The other two are now Nate and TD 16.)

Amazing to have watched the pattern set up and everything, 3-4 pattern-induced lows, come to fruition.