Gale

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7 beaufort is the first level where the word gale is used

A gale is a very strong wind. The Beaufort scale is a way to measure weather conditions, based on observations. The first level of the scale that uses the word gale is 7 beaufort (of a total of 13 steps). There are other definitions as well. The U.S. Government's National Weather Service defines a gale as 34 to 47 knots (63 km/h to 87 km/h or 39 miles per hour to 54 miles per hour) of sustained surface winds.[1] Forecasters typically issue gale warnings when winds of this strength are expected.

Other sources use minima as low as 28 knots (52 km/h) and maxima as high as 90 knots (170 km/h). The 90-knot (170 km/h) definition is very non-standard. A common alternative definition of the maximum is 55 knots (102 km/h).[2]

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