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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

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.

slide2
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.

slide4
Beaufort 0 (under 1 m.p.h.)

Calm

Keep mouse clicking on the picture to make it move!

Calm; smoke rises vertically.

Chart

slide5
Beaufort 0 (under 1 m.p.h.)

Calm

Keep mouse clicking on the picture to make it move!

Calm; smoke rises vertically.

Chart

slide6
Beaufort 0 (under 1 m.p.h.)

Calm

Keep mouse clicking on the picture to make it move!

Calm; smoke rises vertically.

Chart

slide7
Beaufort 1 (1 - 3 m.p.h.)

Light Air

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Smoke drifts

Chart

slide8
Beaufort 1 (1 - 3 m.p.h.)

Light Air

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Smoke drifts

Chart

slide9
Beaufort 1 (1 - 3 m.p.h.)

Light Air

Keep mouse clicking on the picture to make it move!

Smoke drifts

Chart

slide10
Beaufort 2 (4 - 7 m.p.h.)

Light breeze

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Wind felt on face

Chart

slide11
Beaufort 2 (4 - 7 m.p.h.)

Light breeze

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Wind felt on face

Chart

slide12
Beaufort 2 (4 - 7 m.p.h.)

Light breeze

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Wind felt on face

Chart

slide13
Beaufort 3 (8 - 12 m.p.h.)

Gentle breeze

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Leaves move constantly

Chart

slide14
Beaufort 3 (8 - 12 m.p.h.)

Gentle breeze

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Leaves move constantly

Chart

slide15
Beaufort 3 (8 - 12 m.p.h.)

Gentle breeze

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Leaves move constantly

Chart

slide16
Beaufort 4 (13 - 18 m.p.h.)

Moderate breeze

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Small branches move

Chart

slide17
Beaufort 4 (13 - 18 m.p.h.)

Moderate breeze

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Small branches move

Chart

slide18
Beaufort 4 (13 - 18 m.p.h.)

Moderate breeze

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Small branches move

Chart

slide19
Beaufort 5 (19 - 24 m.p.h.)

Fresh breeze

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Small trees sway

Chart

slide20
Beaufort 5 (19 - 24 m.p.h.)

Fresh breeze

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Small trees sway

Chart

slide21
Beaufort 5 (19 - 24 m.p.h.)

Fresh breeze

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Small trees sway

Chart

slide22
Beaufort 6 (25 - 31 m.p.h.)

Strong breeze

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Whistling heard in wires

Chart

slide23
Beaufort 6 (25 - 31 m.p.h.)

Strong breeze

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Whistling heard in wires

Chart

slide24
Beaufort 6 (25 - 31 m.p.h.)

Strong breeze

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Whistling heard in wires

Chart

slide25
Beaufort 7 (32 - 38 m.p.h.)

Near gale

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Whole trees in motion

Chart

slide26
Beaufort 7 (32 - 38 m.p.h.)

Near gale

Keep mouse clicking on the picture to make it move!

Whole trees in motion

Chart

slide27
Beaufort 7 (32 - 38 m.p.h.)

Near gale

Keep mouse clicking on the picture to make it move!

Whole trees in motion

Chart

slide28
Beaufort 8 (39 - 46 m.p.h.)

Gale

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Twigs break off trees

Chart

slide29
Beaufort 8 (39 - 46 m.p.h.)

Gale

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Twigs break off trees

Chart

slide30
Beaufort 8 (39 - 46 m.p.h.)

Gale

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Twigs break off trees

Chart

slide31
Beaufort 9 (47 - 54 m.p.h.)

Strong gale

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Slight structural damage

Chart

slide32
Beaufort 9 (47 - 54 m.p.h.)

Strong gale

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Slight structural damage

Chart

slide33
Beaufort 9 (47 - 54 m.p.h.)

Strong gale

Keep mouse clicking on the picture to make it move!

Slight structural damage

Chart

slide34
Beaufort 9 (47 - 54 m.p.h.)

Strong gale

Keep mouse clicking on the picture to make it move!

Slight structural damage

Chart

slide35
Beaufort 9 (47 - 54 m.p.h.)

Strong gale

Keep mouse clicking on the picture to make it move!

Slight structural damage

Chart

slide36
Beaufort 9 (47 - 54 m.p.h.)

Strong gale

Keep mouse clicking on the picture to make it move!

Slight structural damage

Chart

slide37
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

slide38
Beaufort 10 (55- 63 m.p.h.)

Storm

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Trees uprooted

Chart

slide39
Beaufort 10 (55- 63 m.p.h.)

Storm

Keep mouse clicking on the picture to make it move!

Trees uprooted

Chart

slide40
Beaufort 10 (55- 63 m.p.h.)

Storm

Keep mouse clicking on the picture to make it move!

Trees uprooted

Chart

slide41
Beaufort 10 (55- 63 m.p.h.)

Storm

Keep mouse clicking on the picture to make it move!

Trees uprooted

Chart

slide42
Beaufort 10 (55- 63 m.p.h.)

Storm

Keep mouse clicking on the picture to make it move!

Trees uprooted

Chart

slide43
Beaufort 10 (55- 63 m.p.h.)

Storm

Keep mouse clicking on the picture to make it move!

Trees uprooted

Chart

slide44
Beaufort 10 (55- 63 m.p.h.)

Storm

Keep mouse clicking on the picture to make it move!

Trees uprooted

Chart

slide45
Beaufort 10 (55- 63 m.p.h.)

Storm

Keep mouse clicking on the picture to make it move!

Trees uprooted

Chart

slide46
Beaufort 10 (55- 63 m.p.h.)

Storm

See it again

Keep mouse clicking on the picture to make it move!

Trees uprooted

Chart

slide47
Beaufort 11 (64 - 72 m.p.h.)

Violent storm

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Wide-spread damage

Chart

slide48
Beaufort 11 (64 - 72 m.p.h.)

Violent storm

Keep mouse clicking on the picture to make it move!

Wide-spread damage

Chart

slide49
Beaufort 11 (64 - 72 m.p.h.)

Violent storm

Keep mouse clicking on the picture to make it move!

Wide-spread damage

Chart

slide50
Beaufort 11 (64 - 72 m.p.h.)

Violent storm

Keep mouse clicking on the picture to make it move!

Wide-spread damage

Chart

slide51
Beaufort 11 (64 - 72 m.p.h.)

Violent storm

Keep mouse clicking on the picture to make it move!

Wide-spread damage

Chart

slide52
Beaufort 11 (64 - 72 m.p.h.)

Violent storm

Keep mouse clicking on the picture to make it move!

Wide-spread damage

Chart

slide53
Beaufort 11 (64 - 72 m.p.h.)

Violent storm

Keep mouse clicking on the picture to make it move!

Wide-spread damage

Chart

slide54
Beaufort 11 (64 - 72 m.p.h.)

Violent storm

Keep mouse clicking on the picture to make it move!

Wide-spread damage

Chart

slide55
Beaufort 11 (64 - 72 m.p.h.)

Violent storm

Keep mouse clicking on the picture to make it move!

Wide-spread damage

Chart

slide56
Beaufort 11 (64 - 72 m.p.h.)

Violent storm

See it again

Keep mouse clicking on the picture to make it move!

Wide-spread damage

Chart

slide57
Beaufort 12 (73+ m.p.h.)

Hurricane

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Major destruction

Chart

slide58
Beaufort 12 (73+ m.p.h.)

Hurricane

Keep mouse clicking on the picture to make it move!

Major destruction

Chart

slide59
Beaufort 12 (73+ m.p.h.)

Hurricane

Keep mouse clicking on the picture to make it move!

Major destruction

Chart

slide60
Beaufort 12 (73+ m.p.h.)

Hurricane

Keep mouse clicking on the picture to make it move!

Major destruction

Chart

slide61
Beaufort 12 (73+ m.p.h.)

Hurricane

Keep mouse clicking on the picture to make it move!

Major destruction

Chart

slide62
Beaufort 12 (73+ m.p.h.)

Hurricane

Keep mouse clicking on the picture to make it move!

Major destruction

Chart

slide63
Beaufort 12 (73+ m.p.h.)

Hurricane

Keep mouse clicking on the picture to make it move!

Major destruction

Chart

slide64
Beaufort 12 (73+ m.p.h.)

Hurricane

Keep mouse clicking on the picture to make it move!

Major destruction

Chart

slide65
Beaufort 12 (73+ m.p.h.)

Hurricane

Keep mouse clicking on the picture to make it move!

Major destruction

Chart

slide66
Beaufort 12 (73+ m.p.h.)

Hurricane

Keep mouse clicking on the picture to make it move!

Major destruction

Chart

slide67
Beaufort 12 (73+ m.p.h.)

Hurricane

See it again

Keep mouse clicking on the picture to make it move!

Major destruction

Chart

slide68
Here is a little quiz to test your knowledge. Click on the true or false buttons to see if you know whether the following statements are true or false.

The Beaufort Wind Scale was invented by a soldier.

There are thirteen points on the wind scale.

Winds over 73 m.p.h are called a hurricane.

There are six types of breezes.

There are three types of gales.

Twigs break off in a force 8.

Smoke rises vertically in Light air.

Many trees are blown over over 55 m.p.h.

false

true

false

true

false

true

false

true

true

false

true

false

true

false

false

true

Chart

slide69
Well done!

Check your knowledge –look at the chart.

Return to the quiz

Chart

slide70
Try again

Check your knowledge –look at the chart.

Return to the quiz

Chart

slide71
Advanced Users Notes

This is a fairly simple presentation. Users may wish to embellish the file by improving the image files, adding sounds and video clips.

By adding more pictures images the animations would be made smoother. This file was kept modest because of lack of space on the CD Rom.

Weather watchers may be interested to learn more about school weather work by looking regularly on the Naace and Becta TRE web sites.

Alan Rodgers and Angella Streluk

23.1.2005

Chart

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