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Originally posted by UniverSoul
yes this is very possible
Originally posted by Misterlondon
Cold be anything mate.. More than likely some sort of human cause. A Conspiracy or UFO should be the last possible scenario once all other possibilities are eliminated..
So firstly try and work out roughly how far the flash was and then look to see what is in that direction..
What is heat lightning?
[color=CFECEC]What you’re likely seeing is the light from a distant thunderstorm that is located at too great of a distance for the thunder sound to be heard. The sound of thunder rarely travels more than 10 miles. Other cases can be explained by the refraction (or bending) of sound waves by bodies of air with different densities. An observer may see nearby lightning, but the sound from the discharge is refracted over their head by a change in the temperature, and therefore the density, of the air around him. As a result, the lightning discharge seems to be silent.
The term “heat lightning” probably comes from the fact that the effect is most often seen on warm, humid nights during July and August. So an association has been made with sultry temperatures. But when the sky is hazy, as is quite typical on warm, summer nights, the light from intense thunderstorms as far away as 100 miles can be reflected off a layer of haze and up into the night sky.
And that’s why you tend to see heat lightning as just a diffuse flash or flicker.