Cloudbase/dewpoint calculation

[engineless john]

It does work for cumulus, as they are formed directly by rising air. Theres bucket loads of stuff on lapse rates and such, and as a glider pilot I would love to tell you all about it. Unfortunately it fell out the back of my head last October as the soaring season finished.....

Try looking at

http://www.itadvice.co.uk/weatherjack/wx-FAQs.html

and

http://www.itadvice.co.uk/weatherjack/STARS.htm

which has a tutorial on soundings on a link at the bottom of the page.

Cheers
John