The Beaufort Wind Force Scale measures wind speed and its observed effects on land and sea. Created by Sir Francis Beaufort, the scale ranges from 0 (calm) to 12 (hurricane). Beaufort Scale Day ...

Web Extra: The Complete Beaufort Scale 0 (calm): less than 1 mph; calm, smoke rises vertically 1 (light air): 1-3 mph; direction of wind shown by smoke but not by wind vanes ...

An atmospheric gathering storm of a documentary exploring the extraordinary history of the Beaufort Scale - a system designed to help find language for the wind. Show more An atmospheric gathering ...

The Beaufort scale is an empirical measure for the intensity of the weather based mainly on wind power. The scale was created by the British naval commander Sir Francis Beaufort around 1806.