Thunder and rain sounds have long been used online as free, reusable ambience for videos, streams, podcasts and sleep playlists, because a storm instantly sets a mood without needing dialogue or music. Creators search for them when they need believable weather for a scene, a relaxing background for study or rest, or a tense layer under a story. The combination remains popular because it works in many contexts, from horror and drama to meditation and ASMR, and because listeners recognise the sound immediately, even at low volume.