Wind Speed Description
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. The Beaufort scale is still used today to estimate wind strengths.
Visible Condition
0 0 Calm Smoke rises vertically
11 - 4 Light Air direction of wind shown by smoke but not by wind vanes
24 - 7 Light breeze Wind felt on face; leaves rustle; ordinary wind vane moved by wind
38 - 12 Gentle breeze Leaves and small twigs in constant motion; wind extends light flag
413 - 18 Moderate breeze Raises dust and loose paper; small branches are moved
519 - 24 Fresh breeze Small trees in leaf begin to sway; crested wavelets form on inland water
Wright Brother's first flight
625 - 31 Strong breeze Large branches in motion; telephone wires whistle; umbrellas used with difficulty
732 - 38 Moderate gale Whole trees in motion; inconvenience in walking against wind
839 - 46 Fresh gale Breaks twigs off trees; generally impedes progress
947 - 54 Strong gale Slight structural damage occurs; chimney pots and slates removed
Airplanes upset
1055 - 63 Whole gale Trees uprooted; considerable structural damage occurs
1164 - 72 Storm Very rarely experienced; accompanied by widespread damage
1273+ Hurricane Devastation occurs

How are your socks floppin'?

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