In the warm waters of the Caribbean, Dean rapidly strengthened into a Category 5 hurricane with sustained winds. This made it the strongest Atlantic hurricane since Hurricane Wilma—and it was tied for the seventh most intense Atlantic storm of all time. An eyewall replacement cycle weakened Dean, which then passed just south of Jamaica as a Category 4 hurricane. Dean regained Category 5 status late on August 20 and at that strength it made landfall on the Yucatán Peninsula of Mexico near Costa Maya on August 21. Dean was the first storm to make landfall as a Category 5 hurricane in the Atlantic basin since Hurricane Andrew in 1992. A dropsonde in the eye of the storm estimated a central pressure of 905 mbar, tying Dean with Hurricane Mitch for the seventh most intense Atlantic hurricane ever recorded. Dean was the third most intense landfalling Atlantic storm in history (after the Labor Day Hurricane of 1935 and Hurricane Gilbert of 1988). Dean weakened over land, but re-intensified slightly in the Gulf of Mexico. It made its final landfall near Tecolutla, Veracruz on August 22, dissipating the next day.