Pulling out the advisory surge numbers to compare to Apalachee Bay geography. NHC Advisory 14 lists Carrabelle to Suwannee River at 15-20 ft, Apalachicola to Carrabelle at 10-15 ft, and Suwannee River to Chassahowitzka at 10-15 ft. This is catastrophic territory for low-lying Big Bend communities. The bay is extremely shallow and broad, which is exactly the geometry that amplifies surge.