In meteorology, what does a cold front symbolize?

A cold front symbolizes a boundary where cold air is displacing warm air. This occurs when a colder, denser air mass moves into an area occupied by warmer air. The cold air, being heavier, forces the warm air upwards. As the warm air rises, it cools and can condense to form clouds and precipitation. This process often leads to various weather phenomena such as thunderstorms or sudden temperature drops, indicating a significant change in weather conditions. Understanding the dynamics of cold fronts is crucial for predicting and interpreting weather patterns effectively.