Board Thread:Fun and Games/@comment-23758952-20130927015655/@comment-5265497-20140706233305

Electrons are MASSIVELY variable with their speeds especially since they depend so much on external conditions, for example, for a copper wire with a radius of 1 mm with a current of 10 amps, the drift velocity is only about 0.024 cm/sec, but on the other side, the state of an electron in the atom isn't an eigenstate of the velocity operator, so speed is usually indeterminable. But we can make order-of-magnitude estimates which is what was provided by your count for the hydrogen's orbital speed. It exist as a probability wave so it cannot be assigned a concrete value, but a solid estimate based on the probability.

Second, lightning is highly variable as well with different sources providing IMMENSELY different speeds from being half the speed of light to being highly under the speed of light. But we are talking about an assignable lightning speed and even that is very difficult to do usually http://lounge.moviecodec.com/vs-general/how-fast-is-a-lightning-bolt-95443/ and there are other sources claiming 140,000 mph, 220,000 mph, 220,000,000 mph, 224,000 mph (matching yours), so yes even lightning varies to the point it's almost subjective to assign a concrete speed to every lightning strike even if it is natural lightning.