Hey there Wol. nice thunder on the audio! You know i'm going to comment on something and you all are going to think I'm losing it, but when lightning strikes around this neck of the woods it really does sound differently to what you've downloaded. There seems to be a long, long echo (probably the wind carrying sound) of thunder on the audio - but up here the thunder is usually abrupt, sharp and with less 'rolling'.
I kept playing it over and over to make sure i wasn't losing my marbles, but it's just something that I did notice, and being quite honest actually, the thunder here DOES sound different! From sharp, snapping cracks to just simply booming window rattlers - and i've heard 4 months worth thus far!
I just haven't heard thunder up here go on and on and on like it does on your link - it could be a lot of factors involved, but i'm not getting into that!
Mike