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Displacement of air caused by variations in pressure between two regions of the atmosphere.
Symbol of a wind blowing between 88 and 96 km/h.
Symbol of a wind blowing between 14 and 22 km/h.
Symbol of a wind blowing between 5 and 13 km/h.
Symbol of a wind blowing at a speed lower than 5 km/h.
Symbol that uses the position of the shaft to indicate wind direction and the number of barbs and pennants to indicate wind speed.
Symbol indicating the absence of wind.