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.
Hurricane Stan
Located to the south of a low to mid-level tropospheric ridge, the depression tracked towards the west-northwest. Within a few hours of being warned upon, the system further intensified into Tropical Storm Stan. This followed the development of a strong convective banding feature to the southeast of the storm's center. Around 1000 UTC (5 a.m. CDT) on October 2, Stan made its first landfall near Punta Hualaxtoc, Mexico, roughly 35 mi (55 km) south of Tulum, with winds of 40 mph (65 km/h). Over the following 18 hours, the weak storm traversed the southern portion of the Yucatán Peninsula. Upon entering the Gulf of Mexico on October 3, Stan had weakened to a tropical depression; however, convection began to redevelop over the storm's center, allowing the system to re-attain tropical storm status.
A strong area of high pressure over the western Gulf of Mexico forced the storm to turn southwestward, back to the Mexican coastline. Increasingly deep cloud cover formed over the storm in response to a favorable environment over the Bay of Campeche. Late on October 3, forecasters at National Hurricane Center noted a statistical rapid intensity index indicating a 49% chance of Stan undergoing rapid intensification before its final landfall. This intensification did take place within 12 hours before the hurricane moved onshore. Overnight, the structure of Stan rapidly improved, with a banding eye-feature developing within unusually deep convection with cloud-top temperatures measured at by infrared satellites. Following this development, National Hurricane Center upgraded the storm to a Category 1 hurricane on the Saffir–Simpson Hurricane Scale. Around 1200 UTC on October 4, Stan made landfall near Punta Roca Partida, with winds of 80 mph (130 km/h). The storm also attained its lowest barometric pressure of 977 mbar (hPa; 28.85 inHg)at this time. Not long after moving over the mountainous terrain of central Mexico, Stan rapidly weakened to a tropical depression and fully dissipated early on October 5 over the state of Oaxaca.