1899 San Ciriaco hurricane
The hurricane weakened slightly while moving west-northward across the Caribbean Sea and made landfall in Guayama, Puerto Rico late on August 8 with winds of 140 mph (220 km/h). August 8 was the namesday of Saint Cyriacus, hence the hurricane's nickname. Several weather stations across the island reported low barometric pressures, with a reading as low as in Guayama. Wind shifts were also experienced across the island, primarily in the south and the west. The storm crossed Puerto Rico in approximately six hours and emerged into the Atlantic Ocean late on August 8, while weakening to a Category 3 hurricane, with winds decreasing to 120 mph (195 km/h). The hurricane would maintain this intensity for more than nine days. Continuing west-northward, the hurricane brushed the north coast of Dominican Republic on August 9. Thereafter, the system moved slowly northwestward through the Bahamas, striking Inagua on August 10 and Andros Island on August 12. According to telephone and telegraph reports from the Weather Bureau, the storm was predicted to make landfall in Florida.
1931 Atlantic hurricane season
The second hurricane that season, Storm Six, also known as the San Nicolás Hurricane, formed a couple hundred miles east of the Leeward Islands on September 8 and took a nearly straight course for most of its lifetime. It strengthened into a hurricane while over the British Virgin Islands, briefly becoming a Category 2, weakening just before landfall in Puerto Rico. It struck the island only hours before Storm Five hit Belize. Due to the small size of the storm, damage was limited to a 5 or radius in the San Juan area. Two people were killed and damage was restricted to trees, windows, power lines and roofing. Storm Six weakened to a tropical storm and crossed over parts of Hispaniola and Jamaica and later made landfall near Majahual, Mexico. It regained hurricane status in the Bay of Campeche and made landfall near Veracruz. Gusts as high as were recorded in Veracruz. Apparently there was little damage to the city itself but several small boats were lost offshore and several sailors drowned. The 800-ton steamer "Dos Equis" sank with the loss of everyone on board. No exact figures exist. The storm quickly dissipated inland.