Complex sentence: The towns of Escuinapa, El Rosario, and Mazatlán, as well as the municipalities of Angostura, Mocorito, Navolato, and Culiacán sustained flooded, resulting in modest damage.
Split into simpler sentences: The towns of Escuinapa, El Rosario, and Mazatlán sustained flooding. The municipalities of Angostura, Mocorito, Navolato, and Culiacán were flooded, resulting in modest damage.