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Why does the Great Bahama Bank deflect the Florida Current northeastward?

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Map of the North Atlantic Ocean showing major ocean currents, with warm currents like the Gulf Stream and North Atlantic Drift highlighted in pink and cold currents in blue. Arrows indicate current directions and relative speeds, connecting the eastern coasts of North America, the western coasts of Europe and Africa, and the Arctic region. — Gulf Stream Major warm and cold currents of the North Atlantic Ocean.

The Florida Current is deflected northeastward by the submerged Great Bahama Bank, which is located southeast of the Florida Peninsula. As the current emerges from the Straits of Florida, this physical barrier forces the swift, northward-flowing water to change its trajectory toward the northeast, where it eventually joins the Antilles Current.1