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The Beaufort Wind Scale. Use this presentation to learn about how weather watchers measure the wind on land. Click on the buttons to move around the presentation. Advanced computer users may wish to see the end of the presentation for further ideas for using this material.
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The Beaufort Wind Scale Use this presentation to learn about how weather watchers measure the wind on land. Click on the buttons to move around the presentation. Advanced computer users may wish to see the end of the presentation for further ideas for using this material.
About the Beaufort Wind Scale The Beaufort Wind Force Scale was invented in 1805 by a sailor called Sir Francis Beaufort, so it was named after him. In those days the strength of the wind was very important for sailing ships. The wind scale was really to help sea goers describe the wind strength in a common format. In later years the scale was modified to describe conditions on land. The wind scale is used by many weather watchers around the world. There are important terms and phrases that have specific meaning and tell people how fast the wind is.
Click on the buttons to see the effects of the wind, then return to this chart. Quiz
Beaufort 0 (under 1 m.p.h.) Calm Keep mouse clicking on the picture to make it move! Calm; smoke rises vertically. Chart
Beaufort 0 (under 1 m.p.h.) Calm Keep mouse clicking on the picture to make it move! Calm; smoke rises vertically. Chart
Beaufort 0 (under 1 m.p.h.) Calm Keep mouse clicking on the picture to make it move! Calm; smoke rises vertically. Chart
Beaufort 1 (1 - 3 m.p.h.) Light Air Keep mouse clicking on the picture to make it move! Smoke drifts Chart
Beaufort 1 (1 - 3 m.p.h.) Light Air Keep mouse clicking on the picture to make it move! Smoke drifts Chart
Beaufort 1 (1 - 3 m.p.h.) Light Air Keep mouse clicking on the picture to make it move! Smoke drifts Chart
Beaufort 2 (4 - 7 m.p.h.) Light breeze Keep mouse clicking on the picture to make it move! Wind felt on face Chart
Beaufort 2 (4 - 7 m.p.h.) Light breeze Keep mouse clicking on the picture to make it move! Wind felt on face Chart
Beaufort 2 (4 - 7 m.p.h.) Light breeze Keep mouse clicking on the picture to make it move! Wind felt on face Chart
Beaufort 3 (8 - 12 m.p.h.) Gentle breeze Keep mouse clicking on the picture to make it move! Leaves move constantly Chart
Beaufort 3 (8 - 12 m.p.h.) Gentle breeze Keep mouse clicking on the picture to make it move! Leaves move constantly Chart
Beaufort 3 (8 - 12 m.p.h.) Gentle breeze Keep mouse clicking on the picture to make it move! Leaves move constantly Chart
Beaufort 4 (13 - 18 m.p.h.) Moderate breeze Keep mouse clicking on the picture to make it move! Small branches move Chart
Beaufort 4 (13 - 18 m.p.h.) Moderate breeze Keep mouse clicking on the picture to make it move! Small branches move Chart
Beaufort 4 (13 - 18 m.p.h.) Moderate breeze Keep mouse clicking on the picture to make it move! Small branches move Chart
Beaufort 5 (19 - 24 m.p.h.) Fresh breeze Keep mouse clicking on the picture to make it move! Small trees sway Chart
Beaufort 5 (19 - 24 m.p.h.) Fresh breeze Keep mouse clicking on the picture to make it move! Small trees sway Chart
Beaufort 5 (19 - 24 m.p.h.) Fresh breeze Keep mouse clicking on the picture to make it move! Small trees sway Chart
Beaufort 6 (25 - 31 m.p.h.) Strong breeze Keep mouse clicking on the picture to make it move! Whistling heard in wires Chart
Beaufort 6 (25 - 31 m.p.h.) Strong breeze Keep mouse clicking on the picture to make it move! Whistling heard in wires Chart
Beaufort 6 (25 - 31 m.p.h.) Strong breeze Keep mouse clicking on the picture to make it move! Whistling heard in wires Chart
Beaufort 7 (32 - 38 m.p.h.) Near gale Keep mouse clicking on the picture to make it move! Whole trees in motion Chart
Beaufort 7 (32 - 38 m.p.h.) Near gale Keep mouse clicking on the picture to make it move! Whole trees in motion Chart
Beaufort 7 (32 - 38 m.p.h.) Near gale Keep mouse clicking on the picture to make it move! Whole trees in motion Chart
Beaufort 8 (39 - 46 m.p.h.) Gale Keep mouse clicking on the picture to make it move! Twigs break off trees Chart
Beaufort 8 (39 - 46 m.p.h.) Gale Keep mouse clicking on the picture to make it move! Twigs break off trees Chart
Beaufort 8 (39 - 46 m.p.h.) Gale Keep mouse clicking on the picture to make it move! Twigs break off trees Chart
Beaufort 9 (47 - 54 m.p.h.) Strong gale Keep mouse clicking on the picture to make it move! Slight structural damage Chart
Beaufort 9 (47 - 54 m.p.h.) Strong gale Keep mouse clicking on the picture to make it move! Slight structural damage Chart
Beaufort 9 (47 - 54 m.p.h.) Strong gale Keep mouse clicking on the picture to make it move! Slight structural damage Chart
Beaufort 9 (47 - 54 m.p.h.) Strong gale Keep mouse clicking on the picture to make it move! Slight structural damage Chart
Beaufort 9 (47 - 54 m.p.h.) Strong gale Keep mouse clicking on the picture to make it move! Slight structural damage Chart
Beaufort 9 (47 - 54 m.p.h.) Strong gale Keep mouse clicking on the picture to make it move! Slight structural damage Chart
Beaufort 9 (47 - 54 m.p.h.) Strong gale See it again Keep mouse clicking on the picture to make it move! Slight structural damage Chart
Beaufort 10 (55- 63 m.p.h.) Storm Keep mouse clicking on the picture to make it move! Trees uprooted Chart
Beaufort 10 (55- 63 m.p.h.) Storm Keep mouse clicking on the picture to make it move! Trees uprooted Chart
Beaufort 10 (55- 63 m.p.h.) Storm Keep mouse clicking on the picture to make it move! Trees uprooted Chart
Beaufort 10 (55- 63 m.p.h.) Storm Keep mouse clicking on the picture to make it move! Trees uprooted Chart
Beaufort 10 (55- 63 m.p.h.) Storm Keep mouse clicking on the picture to make it move! Trees uprooted Chart
Beaufort 10 (55- 63 m.p.h.) Storm Keep mouse clicking on the picture to make it move! Trees uprooted Chart
Beaufort 10 (55- 63 m.p.h.) Storm Keep mouse clicking on the picture to make it move! Trees uprooted Chart
Beaufort 10 (55- 63 m.p.h.) Storm Keep mouse clicking on the picture to make it move! Trees uprooted Chart
Beaufort 10 (55- 63 m.p.h.) Storm See it again Keep mouse clicking on the picture to make it move! Trees uprooted Chart
Beaufort 11 (64 - 72 m.p.h.) Violent storm Keep mouse clicking on the picture to make it move! Wide-spread damage Chart
Beaufort 11 (64 - 72 m.p.h.) Violent storm Keep mouse clicking on the picture to make it move! Wide-spread damage Chart
Beaufort 11 (64 - 72 m.p.h.) Violent storm Keep mouse clicking on the picture to make it move! Wide-spread damage Chart
Beaufort 11 (64 - 72 m.p.h.) Violent storm Keep mouse clicking on the picture to make it move! Wide-spread damage Chart