Location, location, location...
Now if there is a "mandatory evacuation" by all means, get the heck out!
You said that you are 40' above sea level, I, here am 30' above sea level. I have been through every hurricane here since Hazel and I would not leave unless its a high cat. 4 or cat. 5. It really depends on where you are as to what you should do.
Example: in Morehead city (not the beach) from the high rise bridge to the south one has not a lot to worry about as due to the rise in elevation except for those right on the waterway on Bogue sound. How ever, say that I lived in the Oriental area, I'm gone on a high cat. 2 as that area will flood.
Where we are in NC, Wilmington to Morehead, our coast is not like the "Gulf of Mexico" a bay where water will trapp, it builds up has that has no where to go except inland and so much of that land that is built on there is at sea level or lower like parts of New Orleans and such. When ever a person lives where water can build up and rise with no place to escape, people are in trouble.
Biggest problem is most people do not know what their area will do in a storm and there for will make stupid decisions because they don't know what their area will do.
In the Gulf area, most people should know what their area will do (flood) as they have been torn apart from so many storms from the past, but comparing their area to ours is not apple to apples...

Just my thoughts...
