NOAA ENCŪ

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION  

US3AK42M - DIXON ENTRANCE AND CLARENCE STRAIT TO ETOLIN ISLAND 


INDEX: 

NOTE A
AIDS TO NAVIGATION 
CAUTION - TEMPORARY CHANGES 
CAUTION - USE OF RADIO SIGNALS (LIMITATIONS)
POLLUTION REPORTS 
NOAA WEATHER RADIO BROADCASTS 
COLREGS, 80.1705 
CAUTION - SUBMARINE PIPELINES AND CABLES
AUTHORITIES
WARNING - PRUDENT MARINER
RADAR REFLECTORS
CAUTION - QUALITY OF BATHYMETRIC DATA
WATER LEVELS, CURRENTS, AND TIDES
ADDITIONAL INFORMATION 
RACONS 
MARITIME BOUNDARY
COMMENTS REQUESTED
SUPPLEMENTAL INFORMATION


NOTES: 

NOTE A 
Navigation regulations are published in Chapter 2, U.S. Coast Pilot 8. 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, 17th Coast Guard District in Juneau, Alaska, or at the Office of the District Engineer, Corps of Engineers in Anchorage, Alaska.
Refer to charted regulation section numbers.


AIDS TO NAVIGATION 
Consult U.S. Coast Guard Light List for supplemental information concerning aids to navigation. See Canadian List of Lights, Buoys and Fog Signals for information not included in the U.S. Coast Guard Light List.   


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


CAUTION - USE OF RADIO SIGNALS (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.   


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).   


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.

Mt. McArthur, AK	 	KZZ-95		162.525 MHz 
Sukkwan I, AK			KZZ-89		162.425 MHz 
Cape Fanshaw, AK	 	KZZ-88		162.425 MHz 
Zarembo I, AK	 		KZZ-91		162.450 MHz 
Gravina I, AK	 		KZZ-96		162.525 MHz 
Duke I, AK	 		KZZ-92		162.450 MHz 
Wrangell, AK	 		WXJ-83		162.400 MHz 
Craig, AK	 		KXI-80		162.475 MHz 
Ketchikan, AK	 		WXJ-26		162.550 MHz   


COLREGS, 80.1705 
International Regulations for Preventing Collisions at Sea, 1972. The entire area of this chart falls seaward of the COLREGS Demarcation Line.


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.


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


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.


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.


CAUTION - QUALITY OF BATHYMETRIC DATA
The areas represented by the object M_QUAL (Quality of Data) are approximate due to generalizing for clarity. Caution is advised, particularly for nearshore navigation or voyage planning. M_QUAL represents areas of uniform quality of bathymetric data. The CATZOC (Category of Zone of Confidence in Data) attribute of M_QUAL provides an assessment of the overall zone of confidence.


WATER LEVELS, CURRENTS, AND TIDES
Real-time water levels, tide predictions, and tidal current predictions are available on the internet from NOAA's Center for Operational Oceanographic Products and Services (CO-OPS) at https://tidesandcurrents.noaa.gov/water_level_info.html and https://tidesandcurrents.noaa.gov/currents_info.html.


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


RACONS
Radar Transponder Beacons or RACONS are activated by radars operating on the X-Band frequencies 9300 to 9450 MHz and when activated will emit an international morse code character which will be visible on the radar screen that activated the RACON. The effective range of the RACONS will be 8 miles.


MARITIME BOUNDARY
Any international maritime boundary shown in the disputed area is without prejudice to the legal position of the United States or Canada.


COMMENTS REQUESTED
NOAA encourages users to submit inquiries, discrepancies, or comments about this chart via NOAA's ASSIST tool at https://www.nauticalcharts.noaa.gov/customer-service/assist/.


SUPPLEMENTAL INFORMATION
Consult U.S. Coast Pilot 9 for important supplemental information.


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