A change in wind direction and speed between slightly different altitudes, especially a sudden downdraft. Depending on its scale, wind shear can cause a variety of effects, from minor turbulence to tornadoes. Wind shear caused by interactions between oceanic and atmospheric winds can be so strong that it can dissipate hurricanes. See also shear force.

A change of wind direction and magnitude.

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No references found			As the flight touched down on the runway there was a sudden wind shear," he said. Weather may have caused Thai plane crash: PM by AFP / AFP Asian Edition Models suggest that high-altitude wind shear over the North Atlantic is stronger than normal during El Nino events, disrupting the formation and strengthening of tropical storms there, Webster notes. Warming in central Pacific Ocean may offer better cyclone predictor: ... by Perkins, Sid / Science News Mar 25, 2009 FedEx, Boeing Regarding the FedEx MD-11 Tokyo Narita crash, the Daily Yomiuri reported that the Narita Aviation Weather Service Center issued a wind shear warning for below 500 m. Travel Safety Update - Asia / Pacific by Airguide Online			wind gap wind gauge wind generation wind generator Wind gun wind harp Wind hatch wind in wind instrument wind machine wind off wind on wind out wind park wind poppy wind power Wind pump Wind River Wind River Range Wind River Shoshone wind rose Wind rush Wind sail wind scale wind shake wind shear Wind shock Wind side Wind signal wind sleeve wind sock wind sprint wind surge wind tee wind tunnel wind turbine wind up wind vane wind velocity Wind wheel wind-bell wind-borne Wind-break wind-broken wind-chill wind-chill factor Wind-fertilized Wind-plant wind-pollinated wind-powered Wind-rode			Wind River Development Fund Wind River Environmental Quality Commission Wind River Experimental Forest Wind River Mountains Wind River Mountains Wind River Range Wind River Range Wind River Search and Rescue Wind River Shoshone Wind River Systems Wind River Systems Wind River Transportation Authority Wind River Tribal College wind rose wind rose wind roses wind roses wind roses wind roses Wind row Wind row Wind rush Wind sail wind scale wind scoop Wind Scorpion Wind Scorpion Wind Shadow Media Productions wind shake wind shake wind shear Wind Shear Warning System Wind sheer Wind sheer wind shield Wind Shift wind ship Wind shock Wind side Wind signal wind slab wind sleeve wind sleeve wind sock wind sock Wind socks Wind socks wind someone around little finger Wind speed Wind speed Wind speed Wind speed Wind speed Wind Speed, Direction Wind Speed/Direction Indicator wind sprint wind sprints wind star wind stop Wind storm Wind storm

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