The tone was created by the use of "ROARED" as in roar, which means to utter a loud, deep cry or howl, as in excitement, distress, or anger, just as a lion or a large wild animal with a full, deep and prolonged cry. A so loud and strong, powerfull sound bringing down a strong freighting and furious (a consequence of roaring) rain, turning black clouds to shred in this passage.
