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Old 05-09-2008, 10:28 AM
stompk's Avatar
stompk stompk is offline
I work for God
Join Date: Jan 2008
Location: In the valley
Posts: 613
Default Re: Contrails cannot form into clouds (proof!)

How to find out if they are spraying above your head.

There are parameters for a contrail to form.

The temp must be colder than -38C.

The Humidity level must be above 55%

The warmer it is, the more humidity needed
to form a contrail.

I've made a chart using the Appleman Chart,
and the parameter set by NASA

I challenge anyone to find a sounding in the atmosphere,
between 8000-11,500 meters that fit the parameters to
for a contrail.
Atmospheric Soundings

below 55%, contrails will not form, according to NASA.
above -38C, contrails will not form.
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