Most of the 18Z model runs still show the storm crossing the far northern Yucatan, however
a few models, notably the UKMET, GFS and the GFDL keep the hurricane over
water, passing it through the Yucatan Channel. The GFDL brings the storm up to
CAT 4 intensity, but then slowly weakens it as it moves across the Gulf, finally reaching
the southern Texas coast as a CAT 2 or low end CAT 3 by mid week. Whether or not the
track is correct, the logic for the intensity forecast most certainly is. Once over the Gulf,
water temps have much lower total heat content than that of the Caribbean. The strong
CAT 4 hurricane will overturn the water to great depths, bringing much colder water to
the surface. The lack of a high heat content was ultimately the reason Hurricane Dennis
weakened during the final hours before landfall near Pensacola last week.