I see that I haven't made my point clearly.
Although we seem to be on "different pages" about your point...
Over the years..in trying to "seek out wind" every addicted to the wind kite flyers have gone to many lengths in the often fruitless attempt to create enough wind to fly.
Years ago when I lived in the Federal Way Wa. area...I used to drive down to an empty parking lot at Emerald Downs Race track that was located just less than 70feet from a very very busy commuter & cross country train track.
On those days when the winds were virtually none existant...I could always grab my old Goodwind FlashLight (not the Prism) and my 90 ft.25lb. Spectra lines..
Even on the calm conditions...just after a train had passed, I could usually have enough wind to fly.
The vortex tunnel that remained for many minutes after the train had passed, would create enough air off those train cars, would provide enough minimal wind for some really interesting and surprising flying.
Often just the vortex boundry layered conditions that followed those long long line of freight cars....would trigger enough to start a small wind direction flow change that would often last....
THAT IS, until a train traveling in opposite direction would really PLAY HELL and some very interesting wind reactions and new radical tricks that even Dodd Gross...
would call Gross!
However....I did later find far more reliable source of constant and consistant wind source...
at The Weyhauser home office open grass field located right next to Northbound I-5 freeway near Federal Way Wa.
All I had to do to find enough wind to fly on these calm days...was to set up my flying area near as I could get to the North bound freeway perimiter fencing.
This however seem to work ONLY IF THERE WERE NO PREVAILING WIND PRESENT.
Even at my work place at Boeing....during breaks I would often walk across the street with my little 3D and short 60ft. 25lb. lines...over to the huge hanger at the Boeing Delivery center.
In the DEAD CALM days...you could count on a consistant and reliably smooth air flow of constant and often very smooth wind entering or exiting those huge open doors.
Due to the heat and cold changes inside the hanger...would be enough to cause the air to flow.
Again bottom line:
The air temps. BOTH INSIDE AND OUTSIDE OF THE HANGERS would dictate the flyable condition.
Also we had to saftey cone off kite flying area...and wear a special neon field workers jacket that was required by both security and the field co-ordinator of the day...as well as have a "spotter" (a captured co-worker or fellow addicted employee kite flyer) to stand bye as extra eyeballs.
Amazing just how many strange places and methods we try to find enough air to fly our kites....
I remember one Prism kite junkie that lost MY OLD borrowed beater Eclipse kite off the fantail Vashon Ferry upper deck..when the old tattered lines finally snapped..
(The force of that Prism kite when it hit the water snapped the other remaining line instantly.
Paul shared often with me...that he still had dreams of my old Red-Aqua-Black Prism Eclipse's wing tip sticking up out of water and the memory of it slowly became smaller and smaller in the distance..... with that beautiful skyline of Seattle as a beautiful back drop.
When I think about it...Yes, what a beautiful ending for that old beat up Prism kite that served soooo many fellow friends and co-workers.
Sorry for the rant...(blame the Starbucks new instant coffee that they gave me free this morn...here in Gig Haaba.