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.
1909 Velasco hurricane
A tropical depression was first noted at 1200 UTC on July 13, northeast of Grenada in the Windward Islands, with winds of , though whether it had a closed circulation at the time remains unclear. Nonetheless, the system remained a weak tropical depression for much of its early existence as it moved to the west-northwest through the eastern Caribbean Sea. Weather reports throughout the Caribbean during this time were sparse and according to José Partagás, a former meteorologist at the National Hurricane Center, the system still may have not formed a closed circulation. This meant that the low was not classifiable, though the lack of data also meant that there was no evidence to support this claim and the system was kept as a tropical depression in HURDAT, the Atlantic Hurricane Database. However, once the depression was located south of Jamaica, it began to slowly strengthen and curve more towards the northwest, reaching tropical storm intensity by 0000 UTC on July 17. At the time, the system was expected to make landfall on the Yucatán Peninsula. Ships in the vicinity of the storm reported strong breezes associated with low barometric pressure. Despite predictions, the system curved from its initial west-northwest movement and more towards the northwest, towards the central Gulf of Mexico. The tropical storm continued to intensify, attaining hurricane strength as a Category 1 hurricane on the Saffir–Simpson Hurricane Scale at 1800 UTC on July 18 after skirting past the Guanahacabibes Peninsula.