Due to the approach of tropical storm gustav, aids to navigation and structures in the gulf of mexico may be…

Original warning text

1. DUE TO THE APPROACH OF TROPICAL STORM GUSTAV, AIDS TO NAVIGATION
   AND STRUCTURES IN THE GULF OF MEXICO MAY BE DAMAGED OR DESTROYED.
   LIGHTED AND UNLIGHTED BUOYS MAY MOVE FROM ASSIGNED POSITIONS, BE
   DAMAGED, EXTINGUISHED, SINK, 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 MOVE FROM CHARTED LOCATIONS AND
   PIPELINES MAY BECOME UNCOVERED OR MOVE DUE TO THE FORCE OF STORM SURGE.
   STORM SURGE AND WINDS MAY CREATE SHOALS IN AFFECTED WATERS.
   THE U.S. AIDS TO NAVIGATION SYSTEM MARKING WRECKS AND OBSTRUCTIONS
   ARE INTENDED FOR  USE WITH NAUTICAL CHARTS.
2. THE EXACT MEANING OF A PARTICULAR AID TO NAVIGATION MAY NOT BE CLEAR
   TO THE MARINER UNLESS THE APPROPRIATE NAUTICAL CHART IS CONSULTED.
   VIRTUALLY ALL U.S. LATERAL MARKS ARE LOCATED IN IALA REGION B AND
   FOLLOW THE TRADITIONAL 3R RULE OF RED, RIGHT, RETURNING. IN U.S.
   WATERS, RETURNING FROM SEAWARD AND PROCEEDING TOWARD THE HEAD OF
   NAVIGATION IS GENERALLY CONSIDERED AS MOVING WESTERLY ALONG THE
   GULF COAST. DRAWBRIDGES MAY DEVIATE FROM NORMAL OPERATING PROCEDURES.
   SOME BRIDGES MAY BE UNABLE TO OPEN DUE TO HIGH WINDS. OTHERS MAY BE
   AUTHORIZED EXTENDED CLOSED PERIODS TO FACILITATE EVACUATION OF LAND TRAFFIC.
3. MARINERS SHOULD ANTICIPATE BRIDGE CLOSURES BY LISTENING TO THE
   NATIONAL WEATHER SERVICE AND COAST GUARD BROADCASTS ON TROPICAL
   STORM CONDITIONS. BECAUSE OF THE UNCERTAINTY OF TROPICAL STORM MOVEMENTS
   AND BRIDGE CLOSURES, MARINERS ARE URGED TO SEEK SAFE PASSAGE THROUGH
   DRAWBRIDGES WELL IN ADVANCE OF THE ARRIVAL OF GALE FORCE WINDS.
   LOCKS AND NAVIGATION STRUCTURES WILL BE OPERATED TO PASS NAVIGATION
   UNTIL SUCH TIME THAT WATER LEVEL AND WIND CONDITIONS WARRANT OPERATIONS
   UNSAFE. THE STRUCTURES WILL THEN BE CLOSED IN ACCORDANCE WITH HURRICANE
   PREPAREDNESS PROCEDURES. MARINERS WILL BE GIVEN AS MUCH NOTICE AS POSSIBLE
   WHEN STRUCTURES ARE TO BE CLOSED. HOWEVER, THESE STRUCTURES MAY BE CLOSED
   ON SHORT NOTICE WELL IN ADVANCE OF THE ACTUAL STORM.
4. MARINERS ARE ADVISED TO SEEK SAFE HARBOR AS SOON AS POSSIBLE.
5. CANCEL THIS MSG 022000Z SEP.