Complex sentence: After making landfall, Hanna weakened to a tropical depression and a remnant low late on the same day, however the remnant low moved again into the northwestern Caribbean Sea and the NHC continue monnitor the remnant low but it quickly landfall on the Yucatán Peninsula second time.
Split into simpler sentences: After making landfall, Hanna weakened to a tropical depression and dissipated late on the same day. Later that day, The remnant low moved again into the northwestern Caribbean Sea and the NHC continue monnitor the remnant low but it quickly landfall on the Yucatán Peninsula second time.