Maritime English
Meteorology

What is Whiteout Condition Alert?

Whiteout Condition Alert A warning indicating that visual navigation is severely hindered due to uniformly diffuse light caused by snow, ice, or fog, often resulting in total loss of horizon distinction.

Source: IMO SMCP, STCW Convention, SOLAS, COLREG

How is “Whiteout Condition Alert” Used in Practice?

Attention all Arctic traffic: Whiteout condition alert in effect. All vessels reduce speed, maintain radar watch, and report position every 30 minutes.

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 Whiteout Condition Alert?

A warning indicating that visual navigation is severely hindered due to uniformly diffuse light caused by snow, ice, or fog, often resulting in total loss of horizon distinction.

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