Does anyone have a modern day psak on lightning without thunder colloquially known as "heat lightning"? The Chaye Adam says it's caused by heat and he suggests that maybe is not what the gemara was talking about. We now know that there is no distinction and the sound of the far away thunder either doesn't travel that far and/or it gets refracted upwards before it reaches us. Despite the fact that
- there is no distinction
- the gemara doesn't make the distinction
- the Chaye Adam is not 100% about the distinction
I still see people following the psak of not saying the bracha.