Maritime English
External Communication

What is Navigation Warning?

Navigation Warning A formal broadcast or message informing mariners of navigational hazards, new obstructions, or significant changes in channels, aids to navigation, or regulations.

Source: IMO SMCP, STCW Convention, SOLAS, COLREG

How is “Navigation Warning” Used in Practice?

Navigation warning: unlit wreck reported two cables south of buoy Charlie. Mariners are advised to avoid the area until further notice.

Certification Exam Relevance

STCWMarlins TestISF WatchkeeperGMDSS

Who Needs to Know This Term?

  • Deck Officers
  • Engine Officers
  • Masters

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Frequently Asked Questions

What is Navigation Warning?

A formal broadcast or message informing mariners of navigational hazards, new obstructions, or significant changes in channels, aids to navigation, or regulations.

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