What feature might you see associated with an occluded front on navigational charts?

An occluded front is represented on navigational charts with purple half-circles and triangles. This visual representation indicates the unique weather patterns associated with an occluded front, where a cold front overtakes a warm front and lifts it off the ground. The use of purple signifies that the system involves both warm and cold air masses, reflecting the complex interactions and potential weather changes that can occur in this type of front. Understanding this symbol is crucial for navigators as it helps them anticipate weather conditions that could affect sailing or navigation routes. Knowing how to recognize these features on a chart enables better decision-making and enhances safety at sea.