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A ship in a force 12 ("hurricane-force") storm at sea, the highest rated on the Beaufort scale. The Beaufort scale / ˈ b oʊ f ər t / is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale.
Gale. Moderately high (18-25 ft) waves of greater length, edges of crests begin to break into spindrift, foam blown in streaks. Twigs breaking off trees, generally impedes progress. 9. 41-47. Strong Gale. High waves (23-32 ft), sea begins to roll, dense streaks of foam, spray may reduce visibility.
May 22, 2024 · A gale force wind or gale is defined as a strong, persistent wind ranging from 50 km/h or 31 miles per hour to 102 km/h or 63 miles per hour and is typically associated with but not limited to coastal regions. According to the Beaufort Scale, gale force winds can be divided into four subcategories.
The U.S. National Weather Service defines a gale as sustained surface wind moving at a speed between 34 and 47 knots (63.0 and 87.0 km/h; 17.5 and 24.2 m/s; 39.1 and 54.1 mph). Forecasters typically issue gale warnings when winds of this strength are expected.
The Beaufort Scale is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale . Below is a table showing the Beaufort Scale with speeds in knots, miles per hour and kilometres per hour.
Beaufort Wind Scale. 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.
Oct 19, 2023 · The Beaufort scale, officially known as the Beaufort wind force scale, is a descriptive table. It depicts the force of wind by a series of numbers, typically from 0 to 12. The Beaufort scale goes all the way to 17, but the last five numbers only apply to tropical typhoons.
Beaufort wind force scale. The Beaufort scale, which is used in Met Office marine forecasts, is an empirical measure for describing wind intensity based on observed sea conditions.
Whole Gale: 55 to 63 mph: Considerable structural damage occurs, especially on roofs. Small trees may be blown over and uprooted. 11: Storm Force: 64 to 75 mph: Widespread damage occurs. Larger trees blown over and uprooted. 12: Hurricane Force: over 75 mph: Severe and extensive damage. Roofs can be peeled off. Windows broken. Trees uprooted.
gale, wind that is stronger than a breeze; specifically a wind of 28–55 knots (50–102 km per hour) corresponding to force numbers 7 to 10 on the Beaufort scale. As issued by weather service forecasters, gale warnings occur when forecasted winds range from 34 to 47 knots (63 to 87 km per hour).
