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Hurricane Willa was the strongest tropical cyclone to make landfall in the Mexican state of Sinaloa since Lane in 2006. The twenty-second named storm, thirteenth hurricane, tenth major hurricane, and third Category 5 hurricane of the 2018 Pacific hurricane season, Willa originated from a tropical wave that the National Hurricane Center (NHC) first began monitoring for tropical cyclogenesis in the southwestern Caribbean Sea, on October 14. The system subsequently crossed over Central America into the East Pacific, without significant organization. The NHC continued to track the disturbance until it developed into a tropical depression on October 20, off the coast of southwestern Mexico. Later in the day, the system became a tropical storm as it began to rapidly intensify. On October 21, Willa became a Category 4 major hurricane, before strengthening further to Category 5 intensity on the next day. Afterward, a combination of an eyewall replacement cycle and increasing wind shear weakened the hurricane, and early on October 24, Willa made landfall as a Category 3 hurricane, in Sinaloa in northwestern Mexico. Following landfall, Willa rapidly weakened, dissipating later on the same day over northeastern Mexico.

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