beaufort
n. uncountablen. a scale from 0 to 12 used to measure how strong the wind is. It describes wind based on what you see, like smoke moving or trees bending.
n. an empirical scale for measuring wind speed based on observed sea or land conditions. Often used in maritime and meteorological contexts to provide a standardised description of wind force.
The wind reached force 8 on the Beaufort scale today.
Sailors often refer to the Beaufort scale to decide if the sea conditions are safe for smaller vessels.
Devised in 1805 by Sir Francis Beaufort, the scale provides a consistent method for observers to estimate wind velocity without the need for complex anemometers.
Usually appears as part of the proper noun phrase 'the Beaufort scale' or 'the Beaufort wind scale'.