 The remnant low of Ivan turned to the south and southwest , and after crossing Florida on September 21 it began to reacquire tropical characteristics . It became a tropical depression again on September 22 to the southeast of Louisiana , and Ivan reached winds of 60 mph ( 95 km / h ) before weakening and moving ashore along southwestern Louisiana as a tropical depression ; the circulation of Ivan dissipated after crossing into Texas on September 25 . The cyclone broke several intensity records , and its duration was the tenth longest on record for an Atlantic hurricane . 
