Hurricane Irma's journey through the Caribbean brought it into direct and powerful contact with The Bahamas and Cuba, leaving a notable mark on the meteorological record and the affected islands. After its initial devastating sweep through the Leeward Islands, Irma maintained its formidable strength as it approached these nations, delivering Category 4 and Category 5 conditions. This article delves into the specific details of Irma's interaction with The Bahamas and Cuba, emphasizing
the storm's intensity and the historical context of its landfalls.
Irma's Passage Through The Bahamas
As Hurricane Irma continued its west-northwestward trajectory after impacting the Leeward Islands, it set its sights on The Bahamas. Early on September 8, at 05:00 UTC, the eye of Irma made landfall on Little Inagua Island in The Bahamas. At this point, the hurricane was still a formidable force, carrying winds of 155 mph (249 km/h) and a central pressure of 924 mbar (27.3 inHg). This landfall occurred after Irma had been a Category 5 hurricane for approximately 60 consecutive hours, a duration that ranks as the second longest contiguous time period for a Category 5 hurricane on record. Despite this, the storm had weakened slightly to a Category 4 hurricane around the time of its landfall on Little Inagua.Following its interaction with Little Inagua, Irma's track shifted further to the west. This change in direction was influenced by the intensification of a subtropical ridge located to the north of the hurricane. After completing an eyewall replacement cycle, a natural process in intense hurricanes, Irma began to re-intensify. This re-strengthening was evident as deep convection within the storm became more pronounced and organized. By 18:00 UTC on the same day, September 8, Irma had once again reached Category 5 intensity while positioned east of Cuba, setting the stage for its next major impact.
Historical Landfall in Cuba
With renewed Category 5 strength, Hurricane Irma made a historic landfall in Cayo Romano, Cuba, at 03:00 UTC on September 9. At the moment of landfall, Irma's winds were recorded at an astonishing 165 mph (266 km/h), with a central pressure identical to its previous landfall. This event was particularly significant because it made Irma only the second Category 5 hurricane to strike Cuba in recorded history. The only other storm to achieve this intensity at landfall was the 1924 Cuba hurricane, which had identical wind speeds. This placed Irma in a rare category of meteorological events for the island nation.As the eye of Hurricane Irma moved along the northern coast of Cuba, a gradual weakening process began. This reduction in intensity was primarily due to the interaction of the storm with land. The eye of the hurricane became cloud-filled, and its intensity decreased to a high-end Category 2 later on September 9. Although operationally it had been assessed as never falling below 120 mph (190 km/h), post-analysis indicated a lower intensity, possibly due to shoaling interfering with reconnaissance data. By later that night, Irma's forward speed had begun to slow down, which allowed it to finally start moving northwestward towards Florida. This shift was a response to a complex steering pattern, involving Irma moving around the southwestern edge of a subtropical high to its northeast and a low-pressure system situated over the continental United States.
