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Thread: Mile-wide UFO' spotted by British airline pilot
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Old 26th Jun 2007, 09:01
  #11 (permalink)  
SierraEcho
 
Join Date: Jun 2007
Location: Sweden
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Well lenticularis forms between 20 000 - 40 000 feet looks like a lens and is an indication of mountain waves, and it doesn't glow. BTW, great chart. I'm printing that one!
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