Complex sentence: The low-level center then became elongated and ill-defined; the storm quickly weakened, and degenerated into a tropical wave by 0600 UTC on August 2, thousands of miles away from land.
Split into simpler sentences: The low-level center then became elongated and ill-defined. The storm quickly weakened, and degenerated into a tropical wave by 0600 UTC on August 2, thousands of miles away from land.