Those pictures of Marine Life in Gulfport just leave me speechless..this is like 300 F3 tornadoes on the ground at one place at once.
Accuweather had an excellent graphic as Katrina approached noting that the eyewall windspeeds were in the F3 tornado range and stating that this should be considered 25 mile wide F3. That should have been enough to dislodge even the most stalwart "I won't evacuate" sorts.