"David Mitchell" wrote in message
...
A Norwich to Aberdeen flight is just overhead at 36000 feet with a contrail
clearly below the cloud cover.
Is this an apparition? And am I really unobservant, because it's something
I don't recall seeing before?


My first question is, can you be sure that the contrail you can see is being
produced by the flight you claim?. Sometimes is this area I have counted an
many as 8 aircraft simultaneously criss-crossing at many different levels,
all above an estimated 20000 ft. My second question, what is the cloud type
to which you refer?.

--
Bernard Burton

Wokingham Berkshire.

Weather data and satellite images at:
http://www.woksat.info/wwp.html



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