Hurricane Humberto began its life as a tropical wave that moved off the west coast of Africa on September 19. Initially, the disturbance showed gradual signs of organization as it traveled across the central tropical Atlantic. By September 24, this organized system evolved into Tropical Storm Humberto. As the storm tracked northwestward, it started gaining strength, due in part to a reduction in wind shear that allowed for deep convection and a more symmetric cloud pattern to form over its center. These changes allowed Humberto to intensify and achieve hurricane status on the morning of September 26, marking its transition to a Category 1 hurricane.
Under favorable atmospheric conditions, Humberto underwent rapid intensification, reaching Category 4 status by the end of September 26. However, this strengthening was temporarily interrupted by an eyewall replacement cycle, a common occurrence in such powerful systems, where a new eyewall forms, often resulting in fluctuations in intensity. Despite this brief pause, Humberto soon resumed intensifying once the cycle completed, ultimately reaching the formidable status of a Category 5 hurricane on the evening of September 27. At its peak, Humberto recorded winds of 160 mph (260 km/h) and a central pressure of 924 mbar, making it an exceptionally powerful storm in the Atlantic basin. The hurricane has continued its journey, maintaining its intensity as it progresses further.