Nice!! Might be just a summer time species if they do make it up this way.
http://inshore.lagooner.com/cobia.php
Fishing the Cobia Migration
Each year cobia migrate up and down our beaches during spring and fall as the water temperatures change during each season. During the spring cobia migrate northward as the water temperatures rise and south as the water temperatures fall accordingly. What's the right water temperature, you might ask? The experts all agree that water temps need to be at least 68 °F with 72°F being the temperature that will get them to move onward. So the "rule of thumb" being that cobia will move northward in the spring as the water approaches 68°F and continue northward as it starts to exceed 72°F. During the migration in the spring a temperature gauge is a critical fishermen's tool for spring running cobia.