Weather front

Cold fronts and generally move from west to east, while warm fronts move. Because of the greater density of air in their wake, cold fronts and cold occlusions move faster than warm fronts and warm occlusions. and warm bodies of water can slow the movement of fronts. When a front becomes and the density contrast across the frontal boundary vanishes, the front can degenerate into a line which separates regions of differing wind velocity, known as a shearline. This is most common over the open ocean.

A weather front is a boundary separating two of different and is the principal cause of. In fronts are depicted using various colored lines and symbols, depending on the type of front. The air masses separated by a front usually differ in and Cold fronts may feature narrow bands and may on occasion be preceded by or are usually preceded by and The weather usually clears quickly after a front's passage. Some fronts produce no precipitation and little cloudiness, although there is invariably a wind shift