Port storm is a phrase often used to describe the potential danger of a storm approaching a harbor or coastal area. There are a variety of synonyms that can be used to convey the same meaning, such as coastal tempest, harbor gale, or seaside squall. The word harbor can also be substituted with pier, dock, or wharf, depending on the specific location. Other options might include nautical storm, maritime hurricane, or coastal cyclone. No matter the word choice, the intent is the same - to warn of an impending storm that could cause damage and danger to ships, docks, and the surrounding area.