Interesting indeed, I remember hearing somewhere that positive bolts often come from Atlantic Westerly type setups, perhaps cooler upper air encourages bigger hail formation and so bigger bolts perhaps? I remember one spectacular 'cool weather' storm, its churning base lit up by the setting sun, there were several CGs that hit with almost instant shotgun blasts, setting off car alarms, I've never seen a more spectacular daytime lightning show since, Westerly storms are far better than messy plume storms IMO. :lol: As for lightning frequency, I vaguely remember a storm from the late 90s that had incredibly frequent lightning, barrages of CGs, many of them flickering. Still dosen't beat Krakow in Poland back in 07, we could see the giant storm tops over the Poland/Czech border as we were flying in over Germany, we were at probrably around 30,000ft, and they were higher! After a hazy day in Krakow, the storms moved in late afternoon, lightning was immense, several CGs at a time too and massive anvil crawlers, we were staying near a big power station and industrial area too, and lightning hit some of the stacks a few times. :lol: