18 Facts About Wind shear


Atmospheric wind shear is normally described as either vertical or horizontal wind shear.

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Vertical wind shear is a change in wind speed or direction with a change in altitude.

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Horizontal wind shear is a change in wind speed with a change in lateral position for a given altitude.

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Wind shear is a microscale meteorological phenomenon occurring over a very small distance, but it can be associated with mesoscale or synoptic scale weather features such as squall lines and cold fronts.

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Wind shear has significant effects on the control of an aircraft, and it has been the sole or a contributing cause of many aircraft accidents.

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Weather Radar

Wind shear refers to the variation of wind over either horizontal or vertical distances.

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Airplane pilots generally regard significant wind shear to be a horizontal change in airspeed of 30 knots for light aircraft, and near 45 knots for airliners at flight altitude.

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Low-level wind shear can affect aircraft airspeed during takeoff and landing in disastrous ways, and airliner pilots are trained to avoid all microburst wind shear .

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Wind shear is a key factor in the formation of severe thunderstorms.

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Directional and speed shear can occur across the axis of stronger tropical waves, as northerly winds precede the wave axis and southeast winds are seen behind the wave axis.

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Horizontal wind shear can occur along the local land breeze and sea breeze boundaries.

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Severe thunderstorms, which can spawn tornadoes and hailstorms, require wind shear to organize the storm in such a way as to maintain the thunderstorm for a longer period.

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When landing, wind shear is a hazard, particularly when the winds are strong.

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Wind shear is a hazard for aircraft making steep turns near the ground.

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The installation of high-resolution Terminal Doppler Weather Radar stations at many U S airports that are commonly affected by wind shear has further aided the ability of pilots and ground controllers to avoid wind shear conditions.

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Wind shear affects sailboats in motion by presenting a different wind speed and direction at different heights along the mast.

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Wind shear can have a pronounced effect upon sound propagation in the lower atmosphere, where waves can be "bent" by refraction phenomenon.

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Wind shear engineering is a field of engineering devoted to the analysis of wind effects on the natural and built environment.

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