Advice that’s true for all hurricanes that come ashore.

TX/LA/MS/AL/FL – Gulf of Mexico – Hurricane Delta – Channel Conditions
Due to the approach of Hurricane Delta, aids to navigation and structures or platforms in the Gulf of Mexico and surrounding waters, from Texas to the panhandle of Florida, may be damaged, destroyed or submerged. Lighted and unlighted buoys may have moved from assigned positions, be damaged, extinguished, sunk, or otherwise made inoperative. Mariners should not rely completely upon the position or operation of an aid to navigation in these areas, but should also employ such other methods of determining position as may be available. Wrecks and submerged
obstructions may have moved from charted locations and pipelines may have become uncovered or moved due to the force of storm surge. Mariners are urged to use extreme caution and report all aids to navigation discrepancies to the nearest U.S. Coast Guard unit. LNM 40/20