While the CMC is known for blowing up systems where none occur, it's having a scary time with the gulf system that is being watched, turning it into a major storm that loops around the Yucatan and then hits Mexico. I don't hold much credence to the model given that GFS, NOGAPS, and UKMET aren't seeing it yet, but it is still a system to pay attention to.

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Edit - adding additional reference:

UKMET shows a possible system looping around the Yucatan, but doesn't deepen it the way the CMC does. Link:
http://weather.uwyo.edu/cgi-bin/model?MO...one&C1=pmsl

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Edit 2:

The 12Z model runs don't develop the gulf system at all.