NOAA ENC®

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

US5PR21M - SAINT THOMAS HARBOR

INDEX:
AIDS TO NAVIGATION
POLLUTION REPORTS
CAUTION - TEMPORARY CHANGES
CAUTION – LIMITATIONS
WARNING - PRUDENT MARINER
ADDITIONAL INFORMATION
NOTE A
AUTHORITIES
CAUTION - SUBMARINE PIPELINES AND CABLES
HURRICANES AND TROPICAL STORMS
RADAR REFLECTORS
NOAA WEATHER RADIO BROADCASTS
TIDAL INFORMATION
ADMINSTRATION AREA
CORAL PROPAGATION



NOTES:

AIDS TO NAVIGATION
Consult U.S. Coast Guard Light List for supplemental information concerning aids to navigation.

POLLUTION REPORTS
Report all spills of oil and hazardous substances to the National Response Center via 1-800-424-8802 (toll free), or to the 
nearest U.S.Coast Guard facility if telephone communication is impossible (33 CFR 153).

CAUTION - TEMPORARY CHANGES
Temporary changes or defects in aids to navigation are not indicated. See Local Notice to Mariners.

CAUTION – LIMITATIONS 
Limitations on the use of radio signals as aids to marine navigation can be found in the U.S. Coast Guard Light Lists and National
Geospatial-Intelligence Agency Publication 117. Radio direction-finder bearings to commercial broadcasting stations are subject 
to error and should be used with caution.

WARNING - PRUDENT MARINER
The prudent mariner will not rely solely on any single aid to navigation, particularly on floating aids. See U.S. Coast Guard Light 
List and U.S. Coast Pilot for details.

ADDITIONAL INFORMATION
Additional information can be obtained at www.nauticalcharts.noaa.gov

NOTE A
Navigation regulations are published in Chapter 2, U.S. Coast Pilot 5. Additions or revisions to Chapter 2 are published in the
Notice to Mariners. Information concerning the regulations may be obtained at the Office of the Commander, 7th Coast Guard
District in Miami, Florida, or at the Office of the District Engineer, Corps of Engineers in Jacksonville, Florida.
Refer to charted regulation section numbers.

Berths located in Anchorage Areas A and B are for requirements of the naval service, but all classes of vessels may anchor.


AUTHORITIES
Hydrography and topography by the National Ocean Service, Coast Survey, with additional data from the U.S. Coast Guard, Geological Survey, 
and National Geospatial-Intelligence Agency.


CAUTION - SUBMARINE PIPELINES AND CABLES
Additional uncharted submarine pipelines and submarine cables may exist within the area of this chart. Not all submarine 
pipelines and submarine cables are required to be buried, and those that were originally buried may have become exposed. 
Mariners should use extreme caution when operating vessels in depths of water comparable to their draft in areas 
where pipelines and cables may exist, and when anchoring, dragging, or trawling. Covered wells may be marked by lighted or
unlighted buoys.

Berths located in Anchorage Areas A and B are for requirements of the naval service, but all classes of vessels may anchor.

HURRICANES AND TROPICAL STORMS
Hurricanes, tropical storms and other major storms may cause considerable damage to marine structures, aids to navigation
and moored vessels, resulting in submerged debris in unknown locations. Charted soundings, channel depths and shoreline
may not reflect actual conditions following these storms. Fixed aids to navigation may have been damaged or destroyed. Buoys
may have been moved from charted positions, damaged, sunk, extinguished or otherwise made inoperative. Mariners 
should not rely upon the position or operation of an aid to navigation. Wrecks and submerged obstructions may have been 
displaced from charted locations. Pipelines may have become uncovered or moved. Mariners are urged to exercise extreme 
caution and are requested to report aids to navigation discrepancies and hazards to navigation to the nearest United States 
Coast Guard unit. 

RADAR REFLECTORS
Radar reflectors have been placed on many floating aids to navigation. Individual radar reflector identification on these aids 
has been omitted from this chart.

NOAA WEATHER RADIO BROADCASTS
The NOAA Weather Radio stations listed below provide continuous weather broadcasts. The reception range is typically 37 to 74 km / 20 
to 40 nautical miles from the antenna site, but can be as much as 186 km / 100 nautical miles for stations at high elevations.

St. Thomas, V.I.       WXM-96      162.475 MHz


TIDAL INFORMATION
For tidal information see the NOS Tide Table publication or go to http://co-ops.nos.noaa.gov


ADMINISTRATION AREA
The entire extent of this ENC cell falls within the limits of an Administration Area.  This area covers land, internal waters, and 
territorial sea.  The territorial sea is a maritime zone which the United States exercises sovereignty extending to the airspace as 
well as to its bed and subsoil.  For more information, please refer to the Coast Pilot.


CORAL PROPAGATION
Uncharted submerged manmade structures, designed for the purpose of coral propagation, may exist within the limits of this chart,
principally in shallow water areas.



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