Fronts are actually zones of transition, but sometimes the transition zone, called a frontal zone, can be quite sharp. The type of front depends on both the direction in which the air mass is moving and the characteristics of the air mass. read more
Weather fronts are the primary cause of meteorological activity because they are transition zones. These boundaries separate two masses of air with different temperatures, humidities and densities. The type of front that forms depends on the direction of flow of the air mass and its characteristics. read more
A weather front is a boundary separating two masses of air of different densities, and is the principal cause of meteorological phenomena outside the tropics. In surface weather analyses, fronts are depicted using various colored triangles and half-circles, depending on the type of front. read more