Navigating Lightning Storms on Board a Vessel: Safety Measures and Protocols
Introduction: Navigating through a lightning storm at sea can be a challenging and potentially dangerous experience. However, with the right precautions and understanding of safety measures, mariners can minimize risks and ensure the safety of their crew and equipment.
Understanding the Hazards of Lightning at Sea
Lightning strikes on vessels can be significant threats to safety. Traditional advice such as furling sails and going below deck is a good start, but it is crucial to take additional steps to protect both personnel and equipment.
Seek Shelter Immediately
The first and most important step is to ensure all personnel on deck seek shelter in an interior space. Merchant vessels, being primarily constructed of steel, act as large Faraday cages, dissipating the electrical charge into the surrounding water. However, this does not mean other precautions should be neglected.
Emergency Preparedness
Shut Down and Protect Electronics: In anticipation of a lightning strike, it is wise to either turn off or place essential electronic equipment on standby. This includes navigation systems, communication devices, computers, and TVs. In the engine room, additional measures might be necessary, but the vessel can continue to run normally.
Use Metal as a Pathway: If you are on a boat with an aluminum mast, metal rigging can act as a pathway for lightning. For instance, My sailboat encountered a lighting strike while five miles offshore. I wrapped my anchor chain on one side of the metal standing rigging and lashed my boathook to the other side. When the inevitable strike hit my boat, the masthead wind indicator was blown off, and the boat jumped, but the incredible electric energy missed me because of the metal path. However, I was young and inexperienced, and it was a close call. It is always better to prioritize safety and utilize metal pathways for lightning when exposed to such hazards.
Final Thoughts
While lightning strikes on vessels are rare, their occurrence can have severe consequences, such as electrical damage to essential equipment. By following these simple but effective safety measures, mariners can better protect themselves, their crew, and their vessel in the event of a lightning storm.
Additional Resources and Further Reading:
For more information on maritime safety and navigation, consider visiting the U.S. Coast Guard's website or professional maritime organizations. Understanding the specific regulations and protocols applicable to your vessel and region is crucial for safe navigation in adverse weather conditions.
Conclusion
By taking the necessary precautions, such as seeking shelter, shutting down electronic equipment, and utilizing metal pathways for lightning, mariners can navigate through lightning storms with increased safety and confidence. Remember, the key is to prioritize safety and prepare for the worst while hoping for the best.