NOAA ENCŪ

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

US5HA78M - MIDWAY ISLANDS

INDEX:
SYMBOLS AND ABBREVIATIONS
AUTHORITIES
AIDS TO NAVIGATION
NOTE A
WARNING - PRUDENT MARINER
POLLUTION REPORTS
SUPPLEMENTAL INFORMATION
CAUTION
CAUTION
SUBMARINE PIPELINES AND CABLES
COLREGS, 80.1410
ADMINISTRATION AREA
WATER LEVELS, CURRENTS, AND TIDES

SYMBOLS AND ABBREVIATIONS: For Symbols and Abbreviations see Chart No. 1.

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

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

NOTE A: Navigation regulations are published in Chapter 2, U.S. Coast Pilot 10.  
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, 
14th Coast Guard District in Honolulu, Hawaii or at the Office of the District Engineer, 
Corps of Engineers in Honolulu, Hawaii. Refer to Code of Federal Regulations section numbers.  

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.

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 10 for important supplemental information.

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

CAUTION: 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.

SUBMARINE PIPELINES AND CABLES: Additional uncharted submarine pipelines and submarine cables
may exist within the area.  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.

COLREGS, 80.1410: International Regulations for Preventing Collisions of Sea, 1972.
The entire area falls seaward of the COLREGS Demarcation Line.

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 over 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.

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 .

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