NOAA ENC

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

US2PACYQ - ALASKA PENINSULA


INDEX:

NOTE A
AIDS TO NAVIGATION
POLLUTION REPORTS
CAUTION - USE OF RADIO SIGNALS (LIMITATIONS)
SUPPLEMENTAL INFORMATION
CAUTION - TEMPORARY CHANGES
WARNING - PRUDENT MARINER
ADDITIONAL INFORMATION
AUTHORITIES
CAUTION - USACE HYDROGRAPHIC SURVEYS
CAUTION - HYDROGRAPHIC
CAUTION - LARGER SCALE CHARTS
CAUTION - MARINERS
CAUTION - QUALITY OF BATHYMETRIC DATA
CAUTION - SIGNIFICANT CHANGES
CAUTION - SUBMARINE OPERATING AREAS
CAUTION - SUBMARINE PIPELINES AND CABLES
CAUTION - TIDAL
COLREGS, 80.1705 (see note A)
NOAA WEATHER RADIO BROADCASTS
RADAR REFLECTORS
VESSEL TRAFFIC SERVICE
WATER LEVELS, CURRENTS, AND TIDES
COMMENTS REQUESTED


NOTES:

NOTE A
Navigation regulations are published in Chapter 2 of each regional U.S. Coast Pilot. Additions or revisions to Chapter 2 are published in the Notice to Mariners. Information concerning the regulations may be obtained from the Coast Guard District Commander. 
Refer to charted regulation section numbers.


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 - 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.


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


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


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.


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


CAUTION - USACE HYDROGRAPHIC SURVEYS
USACE conducts hydrographic surveys to monitor navigation conditions. These surveys are not intended to detect underwater features. Undetected features hazardous to surface navigation may exist in federal channels, as might shoaling, particularly along the edges of channels. For more information visit https://navigation.usace.army.mil/Survey/Hydro/ .


CAUTION - HYDROGRAPHIC
Hydrographic details and aids to navigation are not generally shown where larger scale coverage is available.


CAUTION - LARGER SCALE CHARTS
Danger, Prohibited, and Restricted Areas falling within the limits of the larger scale charts are shown thereon and not repeated.


CAUTION - MARINERS
Mariners are urged to use caution when navigating in the area of this chart. Significant changes in depths and shoreline may have occurred as a result of the earthquake of March 27, 1964. The magnitude of change is known only at selected sites which are indicated by note on the larger scale charts.


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.


CAUTION - SIGNIFICANT CHANGES
Significant changes in depths and shoreline may have occurred in the area of chart as a result of the earthquake of March 27, 1964. Tidal observations since the earthquake indicate bottom uplift of +0.3 feet at King Cove, Alaska Peninsula and bottom subsidence of -0.2 feet of Chignick Bay, Alaska Peninsula. Observations at Sand Point, Popof Island, Indicated there was no change at that location. Mariners are urged to use extreme caution when navigating in the area of this chart as the magnitude of change except at these sites is not known.


CAUTION - SUBMARINE OPERATING AREAS
Submerged Submarine Operating Areas falling within the limits of the larger scale charts are shown thereon and not repeated.


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.


CAUTION - TIDAL
Tidal observations made by the National Ocean Service since the earthquake of March 27, 1964, indicate bottom uplift or subsidence at the following locations:

Chignik Bay, Alaska Pen.	-0.2 feet / -0.06 meters
Sand Pt, Popof Island		 0 feet / 0 meters
King Cove, Alaska Pen. 		+0.3 feet / +0.09 meters

Mariners are cautioned to expect shoaling or deepening for the areas listed. Tidal observations at this time are selected sites and the magnitude of the changes except at these sites is not known.


COLREGS, 80.1705 (see note A)
International Regulations for Preventing Collisions of Sea, 1972. The entire area 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.

Cape Gull, AK			    WNG-529        162.500 MHz
Cold Bay, AK                KJY-87         162.425 MHz
Middle Cape, AK				WZ-2556        162.525 MHz
Raspberry Island, AK        KZZ-90         162.425 MHz
Sand Point, AK              WNG-714        162.550 MHz
Sitkinak Dome, AK		    WNG-718		   162.450 MHz


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.


VESSEL TRAFFIC SERVICE
Recommended traffic lanes established in Prince William Sound are shown on larger scale ENCs.


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.


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/.


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