Beaufort scale Table

Beaufort scale Table

Table
The Beaufort scale
wind speed
Beaufort number name of wind knots km/hr description of sea surface
0 calm <1 <1 like a mirror
1 light air 1–3 1–5 ripples with the appearance of scales are formed, but without foam crests
2 light breeze 4–6 6–11 small wavelets, still short but more pronounced; crests have a glassy appearance and do not break
3 gentle breeze 7–10 12–19 large wavelets; crests begin to break; foam of glassy appearance, perhaps scattered white horses
4 moderate breeze 11–16 20–28 small waves, becoming longer; fairly frequent white horses
5 fresh breeze 17–21 29–38 moderate waves, taking a more pronounced long form; many white horses are formed (chance of some spray)
6 strong breeze 22–27 39–49 large waves begin to form; the white foam crests are more extensive everywhere (probably some spray)
7 moderate gale 28–33 50–61 sea heaps up and white foam from breaking waves begins to be blown in streaks along the direction of the wind
8 fresh gale 34–40 62–74 moderately high waves of greater length; edges of crests begin to break into spindrift; the foam is blown in well-marked streaks along the direction of the wind
9 strong gale 41–47 75–88 high waves; dense streaks of foam along the direction of the wind; crests of waves begin to topple, tumble, and roll over; spray may affect visibility
10 whole gale 48–55 89–102 very high waves with overhanging crests; the resulting foam, in great patches, is blown in dense white streaks along the direction of the wind; on the whole the surface of the sea takes a white appearance; the tumbling of the sea becomes heavy and shocklike; visibility affected
11 storm 56–65 103–117 exceptionally high waves (small and medium-sized ships might be for a time lost to view behind the waves); the sea is completely covered with long white patches of foam lying along the direction of the wind; everywhere the edges of the wave crests are blown into froth; visibility affected
12–17 hurricane above 65 above 117 the air is filled with foam and spray; sea completely white with driving spray; visibility very seriously affected
See as table:

* * *


Universalium. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Beaufort scale of wind (nautical) — ▪ Table The Beaufort scale of wind (nautical) Beaufort number name of wind wind speed description of sea surface knots kph 0 calm …   Universalium

  • Beaufort scale — /boh feuhrt/, (no longer in technical use) 1. a scale of wind forces, described by name and range of velocity, and classified as from force 0 to force 12, or, sometimes, to force 17. 2. a scale of the states of sea created by winds of these… …   Universalium

  • scale of measurement — noun an ordered reference standard judging on a scale of 1 to 10 • Syn: ↑scale, ↑graduated table, ↑ordered series • Derivationally related forms: ↑scale (for: ↑scale) …   Useful english dictionary

  • wind scale — noun an international scale of wind force from 0 (calm air) to 12 (hurricane) • Syn: ↑Beaufort scale • Hypernyms: ↑scale, ↑scale of measurement, ↑graduated table, ↑ordered series …   Useful english dictionary

  • graduated table — noun an ordered reference standard judging on a scale of 1 to 10 • Syn: ↑scale, ↑scale of measurement, ↑ordered series • Derivationally related forms: ↑scale (for: ↑scale) …   Useful english dictionary

  • Fujita Scale of Tornado Intensity — ▪ Table The Fujita Scale of tornado intensity F Scale value wind speed range*   description of damage photograph of typical damage metres per second feet per second kilometres per hour miles per hour F0 18 32 metres/sec 64 116 km/hr 59 106… …   Universalium

  • fresh breeze — noun wind moving 19 24 knots; 5 on the Beaufort scale • Hypernyms: ↑breeze, ↑zephyr, ↑gentle wind, ↑air • Part Holonyms: ↑Beaufort scale, ↑wind scale * * * noun …   Useful english dictionary

  • light air — noun wind moving 1 3 knots; 1 on the Beaufort scale • Hypernyms: ↑breeze, ↑zephyr, ↑gentle wind, ↑air • Part Holonyms: ↑Beaufort scale, ↑wind scale * * * noun …   Useful english dictionary

  • light breeze — noun wind moving 4 7 knots; 2 on the Beaufort scale • Hypernyms: ↑breeze, ↑zephyr, ↑gentle wind, ↑air • Part Holonyms: ↑Beaufort scale, ↑wind scale * * * noun …   Useful english dictionary

  • fresh gale — noun wind moving 39 46 knots; 8 on the Beaufort scale • Hypernyms: ↑gale • Part Holonyms: ↑Beaufort scale, ↑wind scale * * * noun : wind having a speed of 39 to 46 miles per hour see beaufort scale table * * * Meteorol. a win …   Useful english dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”