 Simultaneously, Michael made landfall on the Gulf Coast of the United States near Mexico Beach, Florida, ranking by pressure as the third-most intense Atlantic hurricane to ever make landfall in the United States, and making it the first Category 5 hurricane to strike the contiguous United States since Hurricane Andrew in 1992.The storm was originally considered a high-end Category 4 hurricane, but post-season reanalysis (which the NHC routinely performs for every tropical cyclone in their area of responsibility) concluded that it was indeed a Category 5 hurricane at this point.Michael maintained Category 5 intensity for less than one hour; once inland, Michael began to rapidly weaken, as it moved over the inner Southeastern United States, with the eye dissipating from satellite view, weakening to a tropical storm roughly twelve hours after it made landfall.