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Thread: Contrails - how do I predict them?
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Old 23rd June 2005 | 16:50
  #13 (permalink)  
Dick Whittingham
 
Joined: Oct 2000
Posts: 461
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From: Bristol
Now that's interesting! We did get contrails at ground level once at Portage-la-Prairie in Manitoba with a surface OAT of near minus 20ºF - below minus 24ºC - when the first aircraft out blanketed the field with fog.

Dick W
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