Hurricane Isidore was a powerful tropical cyclone that caused widespread flooding and heavy damage across Mexico, Cuba, and the United States in September 2002. The ninth named storm and the second hurricane in the 2002 Atlantic hurricane season, and the fifth of eight named storms to occur in September of that year, Isidore peaked as a Category 3 hurricane, causing damage, as well as four fatalities in Jamaica, Cuba, Mexico, and the United States. Isidore is also noted for threatening to strike the northern Gulf Coast as a Category 4 hurricane, however, the storm struck the region as a moderately strong tropical storm, due to a track change that brought the storm over the Yucatán Peninsula for over a day, which significantly weakened the cyclone in the process. The primary impact from the storm was the heavy rainfall, which fell across southeast Mexico, and also from the central United States Gulf coast into the Ohio Valley.