Costliest Hurricane....#16?

On February 18, 2006 music and laughter was heard once again in New Orleans. Mardi Gras was underway with beads, floats, and smiles. However, something was different this year. The city's population had decreased from 465,000 to 200,000, with a few tourists scattered throughout the parade route. The parade seemed to be centered around the children of New Orleans this year. Float members threw stuffed animals and candy to the children, in hopes to raise everyone's spirits. Throughout all the suffering, the people of New Orleans can still smile and have a good time.
The article made me question if there had been any other, similiar disasters in the United States past history. After googleing 'Hurricanes' for quite some time I came across a webpage that discussed the Hurricane Bob incident in August of 1991. On August 16, 1991 a tropical hurricane formed off the coast of the Bahamas. The storm spread all the way up the eastern coast, causing destruction in states such as New York, Massachusetts, and North Carolina. There were an estimated $1.5 billion dollars in damages. Hurricane Bob was the 15th costliest hurricane in U.S. history.