Alpha Flag - International Maritime Signal Flag Meaning and Use #171113 (License: Personal Use)

The Alpha flag is a triangular pennant divided vertically into two equal parts: a blue hoist-side panel and a white fly-side panel. It is part of the International Code of Signals and universally recognized in maritime contexts to warn nearby vessels that a diver is submerged nearby, requiring them to proceed with caution and maintain a safe distance. The flag’s high-contrast colors ensure visibility even in poor lighting or rough sea conditions.

This image is used on boating safety websites, dive certification portals, maritime training materials, and nautical equipment retailers. It supports user intent for learning signal flag meanings, preparing for diving operations, or complying with maritime regulations.