Thunder loop

Hello, this is my first post and i’m just wondering if anyone knows the name of the soundscape used in HL2 EP1 that loops the thunder sounds. If, for some reason, this isn’t a soundscape or I can’t use it, could anyone please give me another way to loop the thunder sounds.

Oh and please give me it in laymans terms as I am very inexperienced with things like files and coding.
Thankyou.