What does a yellow flag mean on ships?
What does a yellow flag mean on ships? : a yellow flag hoisted by all ships to request pratique on entering a harbor, by a ship to show that it has contagious or infectious disease aboard, or by a ship that has been quarantined. called also yellow flag, yellow jack.
What is the most popular flag for ships?
PANAMA remains at the top of the list, with the most tonnage and number of vessels registered with the flag, by a long stretch.
What does red and yellow flag mean at sea?
Red flag is high hazard meaning high surf and/or strong currents. Yellow flag is medium hazard meaning moderate surf and/or currents. Green flag is low hazard meaning calm conditions, exercise caution.
What does a purple flag on a ship mean?
Purple Flag – Dangerous Marine Life Finally, a purple flag means that there is dangerous marine life out on the water or beach. This could mean jellyfish, stingrays, sea snakes, or other marine life except sharks.