Wind Shift: The term applied to a change in wind direction of 45 degrees or more, which takes place in less than 15 minutes. It may the result of a frontal passage, from katabatic winds, sea breezes, or thunderstorms, and in some instances, the change may be gradual or abrupt.

 

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Wind Shift: The term applied to a change in wind direction of 45 degrees or more, which takes place in less than 15 minutes. It may the result of a frontal passage, from katabatic winds, sea breezes, or . . . View Full Definition

Wind Chill Index: The calculation of temperature that takes into consideration the effects of wind and temperature on the human body. Describes the average loss of body heat and how the temperature feels. Thi . . . View Full Definition

Wind Bracing: Metal straps or wood blocks installed diagonally on the inside of a wall from bottom to top plate, to prevent the wall from twisting, racking, or falling over 'domino' fashion.

Whirlwind: A small-scale, rapidly rotating column of wind, formed thermally and most likely to develop on clear, dry, hot afternoons. Often called a dust devil when visible by the dust, dirt or debris . . . View Full Definition

Wind Direction: The direction from which the wind is blowing. For example, an easterly wind is blowing from the east, not toward the east. It is reported with reference to true north, or 360 degrees on the . . . View Full Definition

Wind: Air that flows in relation to the earth's surface, generally horizontally. There are four areas of wind that are measured: direction, speed, character (gusts and squalls), and shifts. Surfac . . . View Full Definition

Wind Erosion: The detachment and transportation of soil by wind. Wind erosion is a cropland management concern in the Plains states.

Wind Shear: The rate of wind speed or direction change with distance. Vertical wind shear is the rate of change of the wind with respect to altitude. Horizontal wind shear is the rate of change on a hor . . . View Full Definition

Wind Relieving (Vatayanasana): A balance pose. Lie flat on the floor. Bend one knee into your chest and hold the leg with both hands. Bring your chin down to your knee.

Wind Erosion Equation: An equation used to design wind erosion control systems, which considers soil erodibility, soil roughness, climate, the unsheltered distance across a field, and the vegetative cover on the ground.