Wind is air in motion. (See [234].)
667. What are the velocities of winds?
A breeze travels ten feet in a second; a light gale, sixteen feet in a second; a stiff gale, twenty-four feet in a second; a violent squall, thirty-five feet in a second; storm wind, from forty-three to fifty-four in a second; hurricane of the temperate zone, sixty feet in a second; hurricane of the torrid zone, one hundred and twenty to three hundred feet in a second. When wind flies at one mile an hour, it is scarcely perceptible. When its velocity is one hundred miles an hour, it tears up trees, and devastates its track.
Trade winds are vast currents of air, which sweep round the globe over a belt of some 12,000 miles in width.
"They shall be as the morning cloud, and as the early dew that passeth away, as the chaff that is driven with the whirlwind out of the floor, and as the smoke out of the chimney."—Hosea xiii.