NOAA ENC

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

US4AK7MK - ALASKA


INDEX:
NOTE A
AUTHORITIES
AIDS TO NAVIGATION
WARNING - PRUDENT MARINER
CAUTION - LIMITATIONS
CAUTION - TEMPORARY CHANGES
CAUTION - DEPTHS
POLLUTION REPORTS
SUPPLEMENTAL INFORMATION
COLREGS, 80.1705 (see note A)
NOAA WEATHER RADIO BROADCASTS
TIDAL INFORMATION
ADMINISTRATION AREA
ADDITIONAL INFORMATION


NOTES:
NOTE A
Navigation regulations are published in Chapter 2, U.S. Coast Pilot 9.  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.


AUTHORITIES
Hydrography and topography by the National Ocean Service, Coast Survey.


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 - 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.


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


CAUTION - DEPTHS
Depths may vary as much as 1.8 meters (6 feet) due to iceberg groundings.


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).


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


COLREGS, 80.1705 (see note A)
International Regulations for Preventing 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 station listed below provides 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.

Barrow, AK	KZZ-53		162.550 MHz


TIDAL INFORMATION  
The periodic tide has a mean range of about 0.15 meters (0.5 feet).  For tidal information see the NOS Tide Table publication or go to https://tidesandcurrents.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.


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


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