Thirty-one ports in the western Pacific and Indian oceans are evaluated to describe their potentials as havens for ships threatened by typhoons. These evaluations are designed to serve as decision-making aids for force commanders, ship captains, and ship-routing personnel. A general introductory section describes tropical cyclones and discusses ship performance in storms, warning services, and calculation of danger zones. Mean storm tracks for four ocean areas are depicted in appendices. Typhoon, Typhoon haven, Tropical cyclone, Tropical meteorology.