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YachtReprise said:
When we lived full-time in the Caribbean we used to call it 'heat lightning'. It's lightning without thunder. And it's always way off in the distance. Dunno why. And we saw it occasionally, at any time of the year.
I'm sure that the Googles will tell you all about heat lightning.





At night you can see lightning for 100 miles or more. At best you can hear lighting at 15 miles in most cases 10 mile is the max for humans to hear the sounds of lightning. If the flashes are low. The lighting is somewhere on the other side of the horizon. "Heat" does not come into play only distance from the lightning.