Orographic lift

As storage or wind surge forced upward movement of the wind is in front of orographic obstacles such as mountains and mountain ranges called when the wind hits across the obstacle in meteorology. The consequent raising of the air masses leads to the adiabatic cooling and sufficient water vapor in the formation of clouds of storage and, where appropriate, to pitch deposits, which can last for long. Areas with frequent wind set-up, particularly in elongated mountain ranges are referred to as storage locations. Here, the impression that the rain clouds condense on mountains and damming and hang it arises.

An accumulation effect also occurs when the wind to lower hills or from the open sea meets a flat coast, because the lower air layers are constrained by bottom friction, which subsequent air masses forces to rise. The damming effect can be felt in the horizontal up to a distance equal to 50 times the height of the obstacle. In the vertical, the effective range up to 10 - to 20 -fold range obstacle height. On the north side of the Alps, the storage location in north-west wind often reaches up to the Danube and makes itself at the bottom by a decreased vision noticeable.

In contrast to the storage location on the windward side of mountains passes through sinking air masses on the lee side of a warming, it can form hair dryer.