After several eyewall replacement cycles, Emma was upgraded to a Category 4 hurricane on September 4. As Emma's environment was conducive to enhancement, it increased to the Category 5 hurricane the next day and was one minute in the early morning. The average wind speed reached its peak, 180 miles per hour, the strongest hurricane in the North Atlantic since Hurricane Wilma, and the average wind speed in 1 minute tied Wilma. At 6 o'clock on the same day, Emma landed in the northern part of Barbuda, and then landed on Little Inagua Island. After 3 hours, it was once weakened into a Category 4 hurricane, but after 18 hours, it returned to the Category 5 hurricane. Soon after, it landed in the Savannah-Camagui Islands in Cuba. After landing, it was weakened by the terrain friction to a Category 3 hurricane. Later, the intensity rose back to the fourth-grade hurricane. At 1:10 pm on the 10th, Emma landed on Cacho Island, Florida, USA. At 8:35 pm on the same day, Emma landed again on Marco Island, Tongzhou. After landing, it is affected by terrain friction and the strength is rapidly weakened. Emma weakened into a tropical storm at noon on the 11th and weakened into a tropical depression at 3:30 the next day. After 24 hours, it degenerated into a post-tropical cyclone in the north of Tupelo and finally merged into the front on the 15th. System.
