<p>"Water enters the Gulf through the Yucatan Strait, circulates as the Loop Current, and exits through the Florida Strait eventually forming the Gulf Stream. Portions of the Loop Current often break away forming eddies or 'gyres' which affect regional current patterns. Smaller wind driven and tidal currents are created in nearshore environments. Drainage into the Gulf of Mexico is extensive, covering more than 60% of the United States, and includes outlets from 33 major river systems and 207 estuaries."</p>
Gothamist