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.
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.