NAVAREA
Maritime zones relating to navigational warnings
From Wikipedia, the free encyclopedia
NAVAREAs, also described as Navigational areas,[1] are the maritime geographic areas in which specific governments are responsible for broadcasting navigation warnings. Weather warnings have a similar system using METAREAs

NAVAREAs are mentioned in International Maritime Organization Assembly Resolution A.706(17) adopted 6 November 1991.
The International Hydrographic Organization publication S-53 has a document entitled "Worldwide Navigational Warnings Service - Guidance Document" which is related to NAVAREAs.[2]
See also
- World-Wide Navigational Warning Service – Global radio warning system for shipping