Took another look at the visible loop on the GOES 30-min update floater, and it seems I was delusional about the spin off the Yucatan coastline. However, it appears that on it's present course, the center of spin associated with the remains of Arthur will start skirting the BOC coastline with a few hours, and with most of the dry air dipping down on the west side of the BOC, there may be a little room for some convection development.

The circulation area in the gulf of Tehuantepec in the East Pac looks more promising, but appears to be drifting eastwards torwards land, perhaps being nudged along by the broader circulation of Arthur's remains.