standing wave"1. (Also called stationary wave.) A wave that is stationary with respect to the medium in which it is embedded, for example, two equal gravity waves moving in opposite directions.
standing wave—A wave that remains stationary in a moving fluid. In aviation operations it is used most commonly to refer to a lee wave or mountain wave.
stationary front—Same as quasi-stationary front.
Seiche A standing wave oscillation in any enclosed lake which continues after the forcing mechanism has ceased.
It forms in the rising portion of standing waves on the lee side of the mountains. An observer underneath or east of the cloud sees an arch of clear air between the cloud's leading edge and the mountains below.
Lee-wave clouds Lens-shaped clouds that form in the crests of a standing wave downwind from a prominent mountain range. ...
MOUNTAIN WAVE A wave in the atmosphere caused by a barrier, such as a mountain. Sometimes it is marked by lenticular clouds to the lee side of mountain barriers. May be called a standing wave or a lee wave.
SeicheA standing wave oscillation of water in large lakes usually created by strong winds and/or a large barometric pressure gradient.SELA watch cancellation statement issued to terminate a watch before its original expiration time.
STANDING WAVE An atmospheric wave that is stationary with respect to the medium in which it is embedded. A mountain wave is an example. STATIONARY FRONT A front which is nearly stationary or moves very little since the last synoptic position.
 See also: Surface, Atmosphere, Temperature, Pressure, Ocean
  
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