NOAA ENCŪ

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

US4PR30M - VIRGIN PASSAGE AND SONDA DE VIEQUES

INDEX:
AIDS TO NAVIGATION
WARNING - PRUDENT MARINER
CAUTION - DREDGED AREAS
CAUTION - TEMPORARY CHANGES
CAUTION - SUBMARINE PIPELINES AND CABLES
NOTE A
COLREGS, 80.728a (see note A)
NOAA WEATHER RADIO BROADCASTS
POLLUTION REPORTS
SUPPLEMENTAL INFORMATION
AUTHORITIES
CAUTION - LIMITATIONS
HURRICANES AND TROPICAL STORMS
RADAR REFLECTORS
TIDAL INFORMATION
ADDITIONAL INFORMATION
CORAL PROPAGATION


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


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.  

CAUTION - DREDGED AREAS
Improved channels are
subject to shoaling, particularly at the edges.

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


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 sub-
marine 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.


NOTE A
Navigation regulations are published in Chapter 2, U.S.
Coast Pilot 5. Additions or revisions to Chapter 2 are pub-
lished 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.


COLREGS, 80.728a (see note A)
International Regulations for Prevention Collisions at Sea, 1972. 
The entire area of this chart falls seaward of the COLREGS Demarcation Line.


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

San Juan, P.R.	 WXJ-69	  162.400 MHz
St. Thomas, V.I. 	WXM-96	  162.475 MHz


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 com-
munication is impossible (33 CFR 153).


SUPPLEMENTAL INFORMATION
Consult U.S. Coast Pilot 5 for important 
supplemental information.


AUTHORITIES
Hydrography and topography by the National Ocean Service, Coast
Survey, with additional data from the Corps of the Engineers, Geological 
Survey, and U.S. Coast Guard. 


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.


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 their 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.


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


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


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.


END OF FILE
