Tropical Depression 24 is currently gaining strength in the Caribbean, with Florida being a possible target of the current models.
This is the last letter in the alphabet for named storms. The next tropical storm will be named Alpha.
Various analyses below.
Steve Gregory at Wunderground:
SAT Imagery suggests the cyclone is still improving it's overall structure, has good outflow, and will likely become a a Tropical storm in the next 18-24 hours, and then reach hurricane intensity late Tuesday or Wed. A very slow process so far - though conditions appear favorable for a more rapid development.
I expect the RECON will find 30Kt winds in the southeast sector within the next hour or so, but NHC probably will not upgrade the cyclone to a storm just yet, even if the RECON eventually finds 35Kts winds - since it would be some significant distance away from the center.
The latest models continue to show a CAT 2 hurricane forming from the westward drifting system -- and that it will turn northwards across the Yucatan Channel later in the week, and threaten the NE Gulf of Mexico, and Florida in particular, by the weekend.
Jeff Masters at Wunderground
All indications are that this will be Tropical Storm Wilma on Monday, and Hurricane Wilma by Wednesday. Intensificatiion into a major hurricane by late in the week is a distinct possibility.
National Hurricane Center Advisory #4
THE DEPRESSION HAS BEEN MEANDERING FOR THE PAST SEVERAL HOURS.
WHILE A GENERALLY WESTWARD DRIFT IS EXPECTED OVER THE NEXT 24
HOURS...STEERING CURRENTS REMAIN EXTREMELY WEAK AND SOME ERRATIC
MOTION DURING THE NEXT DAY OR TWO IS POSSIBLE.
MAXIMUM SUSTAINED WINDS ARE NEAR 35 MPH... 55 KM/HR...WITH HIGHER
GUSTS. CONDITIONS ARE FAVORABLE FOR THE DEPRESSION TO BECOME A
TROPICAL STORM LATER TODAY OR TONIGHT.
The Weather Channel
A tropical depression in the central Caribbean Sea may soon become Tropical Storm Wilma. The depression, centered southwest of Jamaica, appears to be getting better organized and may reach storm strength later today. (Air Force Reserve Hurricane Hunters will visit the disturbance this afternoon to determine if it has, indeed, reached storm status.) Conditions favor continued intensification, so there's no reason to think the disturbance will not attain hurricane status by mid-week. At the moment, the depression is stationary, but is expected to drift westward over the next couple of days. Thus, a tropical storm warning and hurricane watch have been posted for the Cayman Islands.
She's not a storm yet, but the consensus is that TD 24 will become a hurricane, potentially a major one. The National Hurricane Center will have their next advisory in about half an hour.