Strangely, I didn't witness any being formed. To my best recollection, they were all there when I left work and pretty much remained as is (apart from a very minor amount of separation and drifting) for roughly the next hour. As per norm, the whole thing gradually coalesced into a milky-grey mess.
Chemtrails or Contrails? You decide...
On the subject of Chemtrails, I hope you will try to attend Andrew Johnson's talk on the subject (I was hoping to attend and cover the talk here, but work has got in the way!) on Tuesday 13th December 2011 @ Truth Juice - Birmingham, UK.
For more details visit:
Or visit Andrew's website - http://www.checktheevidence.co.uk/cms/
Till Next Time!
The Truth Seeker's Guide