Lightening

[mcrowder]

Originally Posted by azscump9

There is no such thing as heat lightning.

Why would you say such a thing? What nonsense.

It's true that what is called "heat lightning" has nothing to do with temperature ... but there is such a thing - it refers to lightning that is far enough away that the light is reflected, refracted, etc enough to appear to be just one big area of light, instead of a bolt - and unless the thunderclap is within 30 seconds, it's pretty far away (could be 30-50 miles if conditions are right). The "rolling" sound you hear is actually the sound of the thunder rebounding between the clouds and ground before it reaches you, so you hear it in a wave of sound instead of a short burst.