Download a program called Global Mapper and you can do just that. Problem is, to get high res imagery you have to download one elevation model for each USGS quad, which only cover 7.5 miles by 7.5 miles. Then you have to get the roadmaps to overlay them too.
I have medium res elevation models for the whole earth on a server here and can do quick and dirty surge projections, but the fastest method of all is to use a mapping program like Topo USA from DeLorme and just plot the forecast track, then move the cursor around to the right of landfall while watching the elevation figures for the cursor's current position.
I was using Google Earth to find the elevation of their house (5 to 10 ft). Obviously, they would be flooded if it made landfall anywhere near there.
I guess I was just mainly curious as to how the surge decreases with increasing distance from the eye. With that information, combined with the elevation data, you could determine the potential flooding as you say. Thanks.