Army Corp maps show a low of 11' on the west side (by the airport), and varying between 18' and 13' along the lake, which would suggest that those numbers take into account subsidence.
Looks like they are ok for a direct surge up to 13', but a track where the winds are from the north on the west side could pile water up against that 11' levee.
What about the people stranded at the airport???
What the hell is wrong with everybody??
They need to be taken out of there!