Cold Front

A cold front is the leading edge of a cooler mass of air, replacing a warmer mass of air at ground level. It often brings significant shifts in the weather. The boundary is called a front. Cold fronts often move faster than warm fronts and can produce dramatic changes in weather as they move through an area. When a cold front passes, it can bring cooler temperatures, clearing skies, and heavy precipitation that precedes the front’s passage. It can also cause violent thunderstorms and severe weather, depending on the conditions. On a weather map, a cold front is represented by a solid line with triangles pointing in the direction of travel.