On Sunday, July 23, 2017 at 12:45:38 PM UTC-5, firsys wrote:
Yesterday, close to my home field, after I had given up( 2500 ft cloudbase)
I noticed lennie like clouds lining up across the light NW wind.

Has anyone any idea of the met conditions for development of T.W?

John Firth
Ottawa

Here's the link to the talk I gave at OSTIV in January...
http://www.danlj.org/~danlj/Soaring/...ver-plains.pdf
Dan Johnson