There are some interesting evolutions/changes of note across the Gulf of Mexico and the Bay of Camp. this evening.

First and foremost, there is evidence that the strong ridge is finally loosing its grip ove the Gulf. This can be noted in the visible imagery today. The flow over the western Gulf in particulary has been shifting into a southwesterly flow and now at almost a southerly flow.

Link (visible): http://www.ssd.noaa.gov/goes/east/gmex/loop-vis.html
Link (Shortwave. Not as good as the visible right now, but will surfice during nightime hours): http://www.ssd.noaa.gov/goes/east/gmex/loop-ir2.html

Next, the change in flow out of the southwest and south, plus the northerly progression of the bent out of shape 91L should help to build the air moisture around the BOC and southern Gulf with time. Also, there is evidence that an Upper Low is evolving in Mexico (give or take coordinates of around 19N, 97.5W)

Link (Water Vapor): http://www.ssd.noaa.gov/goes/east/watl/wv-l.jpg

Of course, how could we not forget about the remenants of Arthur? His broad/weak gyre has made it to the Bay of Campeechee now as can be referenced in the visible loops...even staring to show some gain some latitude now. Introduce his remenants, plus a little moisture support from old 91L and the kick may be there to spawn some redevelopment...Just something to watch for now, but overall, the pattern in the Gulf is changing.