1899 San Ciriaco hurricane
Hurricane San Ciriaco set many records on its path. Resulting in at least 3,369 deaths in Puerto Rico, the storm was the deadliest hurricane to hit the island and the strongest at the time, until the Hurricane San Felipe Segundo made landfall in 1928 as a Category 5 hurricane. It was also among the deadliest Atlantic hurricanes ever recorded.
Meteorological history of Hurricane Dean
Although many of the convective bands were already located over the Yucatán Peninsula, Hurricane Dean continued to intensify until the eye made landfall. As the eye moved over Mexico near the town of Majahual in the Costa Maya area, the NHC estimated surface level winds of 175 mph (280 km/h), making Dean the first storm to make landfall as a Category 5 hurricane in the Atlantic basin since Hurricane Andrew in 1992. At the same time, a dropsonde reading from the hurricane's eye estimated a central pressure of 905 mbar, making Dean the third most intense landfalling Atlantic storm in history (after the Labor Day Hurricane of 1935 and Hurricane Gilbert of 1988) and tying Dean with Camille and Mitch as the seventh most intense hurricane ever recorded in the Atlantic basin. The landfall itself occurred in a sparsely populated area of the Costa Maya region of the Mexican state of Quintana Roo near 18.7 N 87.8 W at 0900 UTC August 21 and brought with it a storm surge of 12–18 ft (3.7–5.5 m). A weather station at Chetumal (the capital of Quintana Roo, Mexico) reported 6.65 in (17 cm) of rainfall during Hurricane Dean's landfall. As expected, the landfall caused significant weakening of the storm; the eye filled and the cold cloud-tops warmed. The land severely disrupted the storm's organization, and by the time Dean crossed the Yucatán Peninsula it had weakened to a Category 1 hurricane.
Hurricane Dean emerged into the Bay of Campeche as a Category 1 hurricane on the afternoon of August 21. Its inner core was largely disrupted, so although a ragged eye reformed over the warm waters of the bay, the hurricane no longer had the structure to support its previous strength. Nevertheless, the warm waters of the bay proved conducive for "some" development and the eye contracted overnight, indicating that the hurricane was regaining structure. With better structure came stronger winds of 100 mph (160 km/h), and the storm was re-categorized as a Category 2 hurricane.