What does the Beaufort wind scale measure?

The Beaufort wind scale is specifically designed to estimate and classify wind speed based on observed effects on land and sea. It measures wind speed indirectly by evaluating the movement of visible objects, such as trees and waves, helping to provide a qualitative assessment of wind intensity. For instance, different classifications on the Beaufort scale correlate with specific descriptions of how wind affects the environment, from calm conditions with smoke rising straight up to strong winds that cause larger waves and break branches.

This method of utilizing visual cues makes the Beaufort scale a practical tool for sailors and meteorologists to convey wind strength without relying solely on instruments. Consequently, it provides a comprehensive understanding of how wind interacts with its surroundings, which is essential for activities influenced by wind conditions.