If you have a shortwave receiver with ssb, these are the frequencies being used for the emergency traffic on the gulf.

Amateur HF Gulf Coast Hurricane Net Frequencies:
03845.0 LSB Gulf Coast West Hurricane
03862.5 LSB Mississippi Section Traffic
03873.0 LSB Central Gulf Coast Hurricane
03873.0 LSB Louisiana ARES Emergency (night)
03873.0 LSB Texas ARES Emergency (night)
03873.0 LSB Mississippi ARES Emergency
03910.0 LSB Mississippi ARES
03910.0 LSB Louisiana Traffic
03923.0 LSB Mississippi ARES
03925.0 LSB Central Gulf Coast Hurricane
03925.0 LSB Louisiana Emergency (altn)
03935.0 LSB Central Gulf Coast Hurricane
03935.0 LSB Louisiana ARES (health & welfare)
03935.0 LSB Texas ARES (health & welfare)
03935.0 LSB Mississippi ARES (health & welfare)
03935.0 LSB Alabama Emergency
03940.0 LSB Southern Florida Emergency
03950.0 LSB Northern Florida Emergency
03955.0 LSB South Texas Emergency
03965.0 LSB Alabama Emergency (altn)
03967.0 LSB Gulf Coast (outgoing traffic)
03975.0 LSB Texas RACES
03993.5 LSB Gulf Coast (health & welfare)
03995.0 LSB Gulf Coast Wx

07225.0 LSB Central Gulf Coast Hurricane
07235.0 LSB Louisiana Emergency
07235.0 LSB Central Gulf Coast Hurricane
07235.0 LSB Louisiana Emergency
07240.0 LSB American Red Cross US Gulf Coast Disaster
07240.0 LSB Texas Emergency
07243.0 LSB Alabama Emergency
07245.0 LSB Southern Louisiana
07248.0 LSB Texas RACES
07250.0 LSB Texas Emergency
07260.0 LSB Gulf Coast West Hurricane
07264.0 LSB Gulf Coast (health & welfare)
07265.0 LSB Salvation Army Team Emergency Radio (SATERN) (altn)
07273.0 LSB Texas ARES (altn)
07280.0 LSB NTS Region 5
07280.0 LSB Louisiana Emergency (altn)
07283.0 LSB Gulf Coast (outgoing only)
07285.0 LSB West Gulf ARES Emergency (day)
07285.0 LSB Louisiana ARES Emergency (day)
07285.0 LSB Mississippi ARES Emergency
07285.0 LSB Texas ARES Emergency (day)
07290.0 LSB Central Gulf Coast Hurricane
07290.0 LSB Gulf Coast Wx
07290.0 LSB Texas ARES (health & welfare)
07290.0 LSB Louisiana ARES (health & welfare) (day)
07290.0 LSB Texas ARES (health & welfare)
07290.0 LSB Mississippi ARES (health & welfare)

14265.0 USB Salvation Army Team Emergency Radio(SATERN) (health & welfare)
14300.0 USB Intercontinental Traffic
14300.0 USB Maritime Mobile Service
14303.0 USB International Assistance & Traffic
14313.0 USB Intercontinental Traffic (altn)
14313.0 USB Maritime Mobile Service (altn)
14316.0 USB Health & Welfare
14320.0 USB Health & Welfare
14325.0 USB Hurricane Watch (Amateur-to-National Hurricane Center)
14340.0 USB Louisiana (1900)

This link will take you to some additional frequencies that include 'MARS'(Military/Amateur Radio Service), 'CAP' (Civil Air Patrol) and others.
Hurricane Frequencies List