A widely used wind force scale which is a simple numerical relationship to wind speed based on an observation of the effects of the wind. The Beaufort wind scale is of importance in preparations for a tropical storm or hurricane.

Descriptive system that determines wind speed by noting the effect of the wind on the environment. Originally developed for use at sea by Admiral Beaufort of the British Navy in 1806.

A system of estimating and reporting wind speeds. In its present form for international meteorological use it equates (a) Beaufort force (or Beaufort number), (b) wind speed, (c) descriptive term, and [..]

A system of estimating and reporting wind speeds using a numerical scale ranging from 0 (calm) to 12 (hurricane). It was invented in the early nineteenth century by Admiral Beaufort of the British Nav [..]

A scale that uses observations of the effects of wind to estimate its speed. Click on Beaufort Wind Scale for the complete scale.

A system used to classify wind speed, developed in 1805 by British Admiral Francis Beaufort. The scale was initially developed for ships at sea but has latterly been adapted for use on land. The scale [..]

A method of measuring the severity of the force of wind, named after Admiral Beaufort who created the system. 0 is no wind, whereas 12 would be a hurricane.

A scale classifying wind strength in terms of observable effects both on the sea and over land. Copies of the Beaufort Wind Scale for both land and water are included with this terminology guide. Ceil [..]

A system for estimating the wind speed by observing the state of the sea, using a scale on which successive ranges of wind velocities are assigned code number from 0 to 12, corresponding to categories form calm to hurricane. Devised by British Admiral Sir Francis Beaufort (1774-1857)

A scale classifying wind strength in terms of observable effects both on the sea and over land. See http://en.wikipedia.org/wiki/Beaufort_scale

A system of estimating and reporting wind speeds using a numerical scale ranging from 0 (calm) to 12 (hurricane). It was invented in the early nineteenth century by Admiral Beaufort of the British Nav [..]

A system of estimating and reporting wind speeds. It is based on the Beaufort Force or Number, which is composed of the wind speed, a descriptive term, and the visible effects upon land objects and/or sea surfaces. The scale was devised by Sir Francis Beaufort (1777-1857), hydrographer to the British Royal Navy.

A system of estimating and reporting wind speeds. It is based on the Beaufort Force or Number, which is composed of the wind speed, a descriptive term, and the visible effects upon land objects and/or sea surfaces. The scale was devised by Sir Francis Beaufort (1777-1857), hydrographer to the British Royal Navy.

A system of estimating and reporting wind speeds. It is based on the Beaufort Force or Number, which is composed of the wind speed, a descriptive term, and the visible effects upon land objects and/or [..]

A system of estimating and reporting wind speeds. It is based on the Beaufort Force or Number, which is composed of the wind speed , measured in knots, a descriptive term, and the visible effects upon [..]

Force Num Wind(Knots) WMOClassification Appearance of Wind Effects On the Water On Land 0 Less than 1 Calm Sea surface smooth and mirror-like Calm, smoke rises vertically 1 1-3 Light Air Scaly ripples [..]

A number system estimating and reporting wind speeds.  It is based on the Beaufort Force or Number, which is composed of the wind speed, a descriptive term, and the visible effects upon land objects.  [..]

A system of estimating and reporting wind speeds. It is based on the Beaufort Force or Number, which is composed of the wind speed, a descriptive term, and the visible effects upon land objects and/or [..]

A system of estimating and reporting wind speeds

   A system of estimating and reporting wind speeds. It is based on the Beaufort Force or Number, which is composed of the wind speed, a descriptive term, and the visible effects upon land objects and [..]

A system of estimating and reporting wind speeds. It is based on the Beaufort Force or Number, which is composed of the wind speed, a descriptive term, and the visible effects upon land objects and/or sea surfaces. The scale was devised by Sir Francis Beaufort (1777-1857), hydrographer to the British Royal Navy.

a system using numbers from 0 to 12 to express wind speed; devised by Admiral Sir Francis Beaufort in early nineteenth century and slightly revised over the years