Light plane crashes at Goolwa

[RadioSaigon]

Originally Posted by GGTA

...hardly conducive to "standing waves"...

It was my understanding that standing waves are not necessarily reliant on physical/terrain characteristics for their formation or sustenance (although they are frequently related) but can arise due to other atmospheric mass-flows...

Some of the long-haul drivers here may be able to relate experiences of trans-oceanic standing waves, also unrelated to physical/terrain characteristics. I'm sure glider pilots will have experiences of mountain/standing wave conditions almost unbelievable distances downwind of the nearest physical terrain likely to have caused them too.

Perhaps try a Google search on Rossby Waves or atmospheric standing waves.