New Orleans wants to return Houston's favor.
New Orleans Mayor Ray Nagin says anyone evacuating from the Houston area ahead of Hurricane Ike is welcome in New Orleans.
Houston set up shelters and even opened the Astrodome to New Orleans residents fleeing Hurricane Katrina in 2005.
Thousands went to Houston, with many staying for months or even years.
New Orleans hasn't opened any shelters, but Nagin says there are 13,000 to 15,000 hotel rooms available.