[jeffers]

Here's what's flooded right now, 230 pm EDT, per NOAA: at plus five feet ASL:



At plus 13 feet ASL, about 80 percent of Galveston goes underwater:

http://i4.photobucket.com/albums/y138/jeffers_mz/Ikeplus13ASL.jpg

At plus 30 feet ASL, almost of all of Galveston and sigificant parts of the coastal metroplex are submerged:

http://i4.photobucket.com/albums/y138/jeffers_mz/Ikeplus30ASL.jpg

Here's a topographic map with five foot elevation increments:

http://i4.photobucket.com/albums/y138/jeffers_mz/Ike1.jpg

Wave height plus tide over mean sea level will add to the surge levels displayed.

[M. Espinola]

Thanks for posting that data and the graphics. It makes everything very clear.