[The colours of lightning]

You find gasses, mineral or metal  can influence colour in a lot of ways(some light bulbs have diffident gases, mineral or metal most notable in HIDs ark lamps) even a gas>  light spectrum shift if you viewing throw  such large volumes of gas
if you have a good wind that can get things like minerals or metals in dust form up into the atmosphere along with heavy industry 

[Competition - Pin the tail on the Bertha!]

i used Snagit Editerhttp://www.techsmith.com/snagit.html

- 30 days fully functional--- Joke ---

I should of used cron, php and php_gd2

to update the image

it would of been very updated

[UK Time-Lapse - The Thunderstorms - 27 June 2014 - 8:30am To 8:30pm]

Shrewsbury

[UK Time-Lapse - The Thunderstorms - 27 June 2014 - 8:30am To 8:30pm]

Youtube

 

8:30 am To 8:30 pmTime-Lapse Settings: 1 Frame every 10 seconds for 12 hoursWatch a few Thunderstorms heavy rain clears up the pollen hazeHowever no lighting was captured - I wasn't at home