Wind Force

Beaufort Scale

Wind Force describes the strength of the wind as it affects the movement of ships in naval combat, pressure upon the rigging and, in extreme cases, the vessel's immediate safety. For game purposes, wind force is divided into grades, each describing the practical effect of the wind upon ships and the surrounding sea.

These grades are expressed by the shown Beaufort scale, which although anachronistic for D&D, is nevertheless too useful a tool to ignore.