Roger's SkyPix

Daytime Lightning

Cloud-to-Air Discharge

Cloud-to-Air Discharge

[Part 1 of 2] OK, this is not bright daylight; but it's not at night either! This is a twilight shot of a big, bright, forked, cloud-to-air lightning bolt originating in the vault of an LP supercell. In this storm it was an area NE of the main updraft, an elevated region of rain and large hail occupying the large notch between updraft and downshear anvil. Intense charge separation happens in this part of supercells, where large precipitation particles cascade off the high updraft. This results in interesting and frequent electrical discharges from the vault, both aerial (as here) and cloud-to-ground (as in the next shot). After most of the lightning had been buried deeper in the rain and farther away, this flash erupted with dazzling suddenness and seemed to leap right at me. I was extremely fortunate to get it within one film frame!

1 S Voda KS (2 Jul 93), looking NW.