The 0 to 12 scale for measurement of wind strength according to its effect on objects such as trees, flags and water established by Admiral Francis Beaufort (1774 to 1857). According to the Beaufort s [..]

The Beaufort wind scale is a system used to estimate and report wind speeds when no measuring apparatus is available. It was invented in the early 19th Century by Admiral Sir Francis Beaufort of the B [..]

to measure wind velocity, developed 1806 by Francis Beaufort (1774-1857), surveyor and hydrologist.

A scale of wind strength based on visual assessment of the effects of wind on seas and vegetation.

scale measuring wind forces, generally from 0 to 12. Read more in the NG Education Encyclopedia

a scale for wind speed, and therefore strength, based on observable effects.

A scale that indicates the wind speed using the effect wind has on certain familiar objects. Source: NOAA-NWS ERH.

The relationship between sea state and wind speed. The Beaufort Scale can be used to estimate wind speed at SEA, but is valid only for WAVES generated within the local weather system, and assumes that there has been sufficient time for a fully developed SEA to have become established.

A scale of wind velocity used for estimating the force or speed of winds. It is a numbered scale from 0 to 12 to describe wave size and sea conditions. The Beaufort Scale was developed by Rear Admiral Sir Francis Beaufort. 0 on the Beaufort scale represents the calmest of seas (the water is so smooth that it looks like glass). A 12 on the Beaufort [..]

A scale of wind forces, described by name and range of velocity, and classified from force 0 to 12, with an extension to 17. The initial (1805) Francis Beaufort wind force scale of 13 classes (0 to 12) did not reference wind speed numbers but related qualitative wind conditions to effects on the sails of a frigate, then the main ship of the Royal N [..]

The relationship between sea state and wind speed. The Beaufort Scale can be used to estimate wind speed at sea, but is valid only for waves generated within the local weather system, and assumes that [..]

A scale used to indicate the force of the wind. Force 1 being calm and force 12 being hurricane force winds or any above 65 mph.

The scale describing wind force devised by Admiral Sir Francis Beaufort in 1808, in which winds are graded by the effect of their force (originally, the amount of sail that a fully rigged frigate coul [..]

a numerical method of describing wind strength.

The scale describing wind force devised by Admiral Sir Francis Beaufort in 1808, in which winds are graded by the effect of their force (originally, the amount of sail that a fully rigged frigate coul [..]

Scale named after Sir Francis Beaufort (1774-1857), a British naval officer, for classifying wind velocity, ranging from 0 for calm or no wind to 12 for hurricane strength winds.

A number system used to describe wind forces and sea conditions from 0 for a flat calm to 12 for a hurricane

 A stepped scale defining wind strength, and its resulting effects, devised by Admiral Sir Francis Beaufort in 1808.

A wind scale and sea disturbance table by which mariners grade the force of wind and height of waves, thus communicating the general condition of the sea to others by use of a wind force number.

The scale describing wind force devised by Admiral Sir Francis Beaufort in 1808, in which winds are graded by the effect of their force (originally, the amount of sail that a fully rigged frigate could carry). Scale now reads up to Force 17.

a numerical scale for indicating wind speed, named after Admiral Sir Francis Beaufort, who devised it in 1806. The initial scale of thirteen classes (zero to twelve) did not reference wind speed numbe [..]

A number system used to describe wind forces and sea conditions from 0 for a flat calm to 12 for a hurricane

A scale of wind speeds.

The Beaufort wind scale is a system used to estimate and report wind speeds when no measuring apparatus is available. It was invented in the early 19th Century by Admiral Sir Francis Beaufort of the British Navy as a way to interpret winds from conditions at sea. Since that time, the scale has been modernized for effects on land. Beaufort Force 0 - [..]

One of the first scales to estimate wind speeds and the effects was created by Britain's Admiral Sir Francis Beaufort (1774-1857). He developed the scale in 1805 to help sailors estimate the winds via visual observations. The scale starts with 0 and goes to a force of 12. Force Wind (Knots) Description Effects On the Water Effects [..]

A scale that indicates wind speed by the effect wind has on familiar objects.

A scale of wind speed based originally on visual assessment of the effects of wind on seas.

A scale that indicates the wind speed

A scale that indicates the wind speed using the effect wind has on certain familiar objects. Celsius

The Beaufort Scale is a scale for measuring wind speeds. It is based on observation rather than accurate measurement. It is the most widely used system to measure wind speed today. There are twelve (12) levels, plus 0 for "no wind". From 1946 to 1970, there were also Beaufort levels 13 to 17. All of them were labelled as Hurricane. Becaus [..]

A scale assigned to wind force. Force

(nautical) An empirical measure for the intensity of the wind based mainly on the state of the sea or wave conditions.

An empirical measure for describing wind intensity and speed based on observed sea conditions.