there are water rescue teams in the air from CA and other states....getting there as fast as they can...dont even know which base they are landing yet.
I suspect that they can't use the NOLA airport until someone surveys the runway to see if it's been undermined. I'm not sure that they're not going to have to airdrop those items in that are too large for helicopters to carry.
Multiple Texas emergency task forces and organizations on the way to the AL-MS-LA Gulf Coast area per TXCN.