# Do electrons in a flash of lightning oscillate between Earth and the clouds (or between clouds)?

In this video, around 2:24, one can see a flash of lightning that keeps the same form for a little time span. Does this mean that it takes a while before the discharge is complete (which I can't imagine) or that the electrons move to and fro between the Earth and cloud (or between the clouds themselves) before the discharge is complete? I can imagine that extra electrons move behind the discharge which on arrival on Earth flash back, taking extra electrons back, etc. But in this case, the flash should dim over time. So why the flash remains in a steady shape that long?

• @Solomon Slow I think you should expand that into a full answer. I don't have a good sense for the $L,R,C$ in this situation, so that should be very informative. – KF Gauss Apr 9 at 16:02