Gulf Coast Storm Network (Clear Channel Radio) - Clear Channel offers radio listeners across the gulf coast access to a simulcast emergency radio service. This service seems primarily focused on Alabama and Mississippi, but does cover Louisiana to some degree.
New Orleans Police Department & National Guard Operations: Several volunteers are pitching in to help relay these "scanner broadcasts." You can now listen for extended periods of time. The service now also includes broadcasts from the National Guard operating in southern Louisiana.
(capacity 300 listeners) http://205.252.89.181:8000/live.m3uGulf Coast ARES Emergency Network: These are amateur radio operators providing assistance and coordination via high frequency (shortwave) links. The audio feed for this will be subject to interference and sound anomalies due to the transmission mode and frequency.
(capacity 250 listeners) http://216.22.26.45:8002/listen.pls
(capacity 160 listeners) http://66.255.148.51:8000/listen.pls
(capacity 100 listeners) http://ve3nsv.no-ip.org:8000/louisiana.m3u
(capacity 20 listeners) http://joem.scare.org:8025/
(unknown capacity) http://radio.scannerbuff.net:8008/hurricane.m3u
(unknown capacity) http://www.radioreference.com:8080/lspbtr.m3u