Most people are shocked at just how extensive the Katrina inundation of New Orleans was (see map below). In the second map offered, zoom in on your part of the U.S. to see how much of your area ...

Most people are shocked at just how extensive the Katrina flooding of New Orleans was. Below, zoom in on your part of the U.S. to see how much of your area would have flooded if it had a similar ...

New Orleans ranks as the worst U.S. city for flood risk. Learn why, what it means for homebuyers, and how to protect your new home with flood insurance and other options.

4:45 a.m. UPDATE: A flash flood warning has been issued for New Orleans, Harvey, Timberlane, Marrero, Belle Chasse, Metairie, Jefferson, Gretna, Westwego, Terrytown, Arabi, Bridge City, Woodmere ...