Mountain Waves (MTW)

Mountain Waves (MTW)

<strong>Mountain Waves (MTW)</strong>

Mountain waves occur when air is being blown over a mountain range. As the air hits the upwind side of the range, it starts to climb, thus creating a smooth updraft which turns into a turbulent downdraft as the air passes the crest of the ridge. From this point, for many miles downwind, there will be a series of down- and updrafts accompanied by moderate to severe turbulence.

Source: ICAO

See also:
<a href="http://flightcrewguide.com/wiki/meteorology/downdraft-microburst-mb/" title="Downdraft and Microburst (MB)">Downdraft and Microburst (MB)</a>
<a href="http://flightcrewguide.com/wiki/meteorology/mountain-waves-mtw/" title="Mountain Waves (MTW)">Mountain Waves (MTW)</a>
<a href="http://flightcrewguide.com/wiki/meteorology/thunderstorms-cb-tcu/" title="Thunderstorms, CB / TCU">Thunderstorms, CB / TCU</a>
<a href="http://flightcrewguide.com/wiki/meteorology/turbulence/" title="Turbulence Grade Classification">Turbulence Grade Classification</a>
<a href="http://flightcrewguide.com/wiki/meteorology/clear-air-turbulence-cat-encounter/" title="Clear Air Turbulence (CAT) Encounter">Clear Air Turbulence (CAT) Encounter</a>
<a href="http://flightcrewguide.com/wiki/meteorology/wind-shear/" title="Wind Shear">Wind Shear</a>

Link to an explanatory article on Wikipedia <a href="https://en.wikipedia.org/wiki/Mountain_waves" target="_blank">here</a>