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Smoke
rises vertically |
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Direction
of wind shown by smoke drift |
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but not
by vanes |
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Wind
felt on face |
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leaves
rustle |
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ordinary
vane moved by wind |
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Leaves
and small twigs in constant motion |
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wind
extends light flag |
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Raises
dust and loose paper |
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small
branches are moved |
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Small
trees in leaf begin to sway |
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crested
wavelets form on inland waters |
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Large
branches in motion |
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whistling
heard in telegraph wires |
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umbrellas
used with difficulty |
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Whole
trees in motion |
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inconvenience
felt when walking against wind |
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Breaks
twigs off trees |
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generally impedes
progress |
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Slight
structural damage occurs |
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chimney
pots and slates removed |
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Seldom
experienced inland |
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trees
uprooted |
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considerable
structural damage occurs |
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Very
rarely experienced |
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accompanied
by widespread damage |
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Peter
Hulen, Beaufort Scale on Land |
