What does red over white with another white light represent?

The combination of red over white with another white light indicates a vessel that is engaged in fishing with gear that extends out 150 meters. This specific lighting configuration is part of the navigational lights required by fishing vessels to signal their activity and to ensure safe navigation around them.

The red light indicates the presence of the fishing gear, while the white light (often seen on the stern or as an additional signal) helps to identify the vessel's operational status. This lighting arrangement is crucial for other vessels to recognize the potential hazards of the fishing gear in the water, particularly when consideration is given to the distance it extends.

Understanding this helps reinforce safe navigation practices to avoid collisions or entanglements with fishing operations. The implications of such lighting also enhance awareness among mariners about nearby vessels that may restrict their maneuverability due to fishing gear in the water.