WITH THE APPROACH OF POTENTIAL TROPICAL CYCLONE ONE, AIDS TO NAVIGATION AND STRUCTURES IN THE GULF OF AMERICA AND SURROUNDING WATERS MAY BE DAMAGED OR DESTROYED. LIGHTED AND UNLIGHTED BUOYS MAY MOVE FROM ASSIGNED POSITIONS, SINK, BE DAMAGED, EXTINGUISHED, OR MADE INOPERATIVE. MARINERS SHOULD NOT RELY UPON THE POSITION OR OPERATION OF AN AID TO NAVIGATION IN AFFECTED AREAS, AND SHOULD EMPLOY OTHER METHODS FOR DETERMINING POSITION. WRECKS AND SUBMERGED OBSTRUCTIONS MAY MOVE FROM CHARTED LOCATIONS AND PIPELINES MAY BECOME UNCOVERED OR MOVE DUE TO STORM SURGES. STORM SURGE AND WINDS MAY CREATE SHOALS IN AFFECTED WATERS. DRAWBRIDGES MAY DEVIATE FROM NORMAL OPERATING PROCEDURES AND MAY BE UNABLE TO OPEN DUE TO HIGH WINDS OR TO FACILITATE EVACUATION OF LAND TRAFFIC. MARINERS SHOULD ANTICIPATE BRIDGE CLOSURES BY LISTENING TO THE NATIONAL WEATHER SERVICE AND COAST GUARD BROADCASTS ON TROPICAL STORM CONDITIONS. LOCKS AND NAVIGATION STRUCTURES WILL PASS NAVIGATION UNTIL WATER LEVELS AND
WIND CONDITIONS WARRANT OPERATIONS UNSAFE. THE STRUCTURES WILL THEN CLOSE IN ACCORDANCE WITH HURRICANE PROCEDURES. MARINERS WILL BE GIVEN AS MUCH NOTICE AS POSSIBLE WHEN STRUCTURES ARE TOO CLOSE; HOWEVER, STRUCTURES MAY CLOSE ON SHORT NOTICE OR WELL IN ADVANCE OF THE ACTUAL STORM. DUE TO THE UNCERTAINTY REGARDING TROPICAL STORM MOVEMENTS AND BRIDGE AND STRUCTURE CLOSURES, MARINERS SHOULD SEEK PASSAGE AND SAFE HARBOR AS SOON AS POSSIBLE AND WELL IN ADVANCE OF THE ARRIVAL OF GALE FORCE WINDS.
CANCEL AT//181700Z JUN 26//

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