Clouds are visible particles which accumulated in the lower layers of the atmosphere in the course of evaporation of water and ice from the Earth's surface. Depending on at what height they settled down, you can observe the surprising forms various on color.
Clouds happen several types, each of which settles down at a certain height and has the distinctive signs and features. Watching clouds, it is possible to define weather for several days ahead. Various atmospheric phenomena are connected with the movement of clouds. In their direction it is possible to judge processes which will appear also in a ground layer of the atmosphere. Clouds move thanks to air flows which differ depending on atmosphere height. This phenomenon happens for several reasons, first – change of wind force, secondly - because of redistribution of atmospheric temperature. Air flows amplify or weaken, depending on remoteness from the earth as they are influenced by terrestrial gravitation. The movement of clouds depends on the direction of air flows in the atmosphere. If in high layers of the atmosphere wind very strong – it foretells rainy and windy weather on the earth. If clouds move from East or North side, so weather will be low-windy and clear, but air temperature will go down. If you observe several types of clouds which move in different directions – it means approach of the warm front, but at steady pressure drop the long rainy weather with precipitation will come. On approach of rainy weather, both the speed, and the direction of the movement of clouds influences, for example. The quicker several layers of clouds move diversely, rather a weather will worsen. Improvement of weather should be expected if small cumulus clouds which move in air flow in the identical direction with the wind at the earth are observed. Meteorologists watch clouds and consider any changes. If they occur in the atmosphere, so experts will point to consequences of these phenomena.