Hurricane Isaac was a strong and large Cape Verde hurricane that lasted through late September and early October 2000. The thirteenth tropical cyclone, ninth named storm, and the fifth hurricane of 2000 Atlantic hurricane season, Isaac developed from a tropical wave south of Cape Verde on September 21. The depression intensified, and on the following day, it was upgraded to Tropical Storm Isaac. Due to conductive atmospheric conditions, Isaac continued to strengthen, and attained hurricane intensity on September 23. Isaac managed to become a Category 3 hurricane on September 24, before steadily weakening shortly thereafter. By September 26, the storm had deteriorated to a Category 1 hurricane. However, it again encountered favorable conditions, which caused Isaac to re-intensify.