In Hurricane Katrina, the storm came ashore heading almost d…

In Hurricane Katrina, the storm came ashore heading almost due north and the eye passed between the towns of Slidell, Louisiana and Waveland, Mississippi. Slidell, LA suffered heavy flooding and moderate wind damage while Waveland, MS was totally destroyed without a single building standing within 200m of the coastline. Both cities experienced the eyewall of the storm where the winds are strongest, so why was the destruction so different?