From the 8 PM TAFB Discussion:

...SPECIAL FEATURE...

A BROAD AREA OF LOW PRESSURE...ANALYZED 1005 MB...IS LOCATED
ABOUT 70 MI SE OF COZUMEL MEXICO AT 19N87W. THIS LOW SITS ALONG
AN ELONGATED SFC TROUGH WHICH STRETCHES FROM NICARAGUA TO THE
SRN GULF. THE OVERALL STRUCTURE OF THE SYSTEM HAS IMPROVED OVER
THE PAST DAY OR SO AND FOR THAT REASON THERE IS SOME POTENTIAL
FOR TROPICAL DEVELOPMENT OVER THE NEXT DAY OR TWO.
THEREAFTER... MODELS SHOW THE LOW TRACKING N/NE INTO THE SE GULF
OF MEXICO ...A HIGH SHEAR ENVIRONMENT...WHICH WOULD FAVOR
NON-TROPICAL DEVELOPMENT. REGARDLESS OF WHAT FORMS...TROPICAL OR
NON-TROPICAL ...ASSOCIATED HEAVY RAINFALL MAY OCCUR ACROSS WRN
CUBA AND S FLORIDA OVER THE NEXT COUPLE OF DAYS. PRESENTLY
SCATTERED MODERATE TO STRONG CONVECTION IS ALONG THE COAST OF
THE YUCATAN PENINSULA FROM 19N-21N BETWEEN 87W-89W. SIMILAR
CONVECTION IS FURTHER E OVER THE NW CARIBBEAN SEA FROM 18N-21N
BETWEEN 83W-86W.