A cold front is a boundary that forms when a mass of cold air moves into an area occupied by warmer air. This transition often leads to a drop in temperature and can cause various weather changes, such as increased wind and precipitation. Cold fronts typically move quickly and can bring thunderstorms or heavy rain as the warm air is forced to rise rapidly. As the cold air pushes under the warm air, it can create clouds and storms. After a cold front passes, the weather usually clears up, leading to cooler and drier conditions. Meteorologists use tools like radar and satellite imagery to track cold fronts and predict their impact on local weather patterns.