Storm is brewing

Beaufort Scale

The Beaufort scale is not strictly scientific, but originally - and to this day - an empirical measure rating wind speed to observed conditions at sea.

The relationship between the Beaufort wind level (B) and the wind speed at 10 meters above sea level (v) is approximated by the formula

$$v = 0.836B^{\frac{3}{2}}$$

Solving for the Beaufort scale number we get the Beaufort Solutions, of which (disregarding imaginary solutions) this is the only one:

$$B = 1.196v ^{\frac{2}{3}}$$

The solution to the Beaufort formula can be used for software converting the wind speed to Beaufort scale or vice versa.