The High Atlas are snow-capped and collect moisture from the Atlantic Ocean which climate patterns distribute over the western part of Morocco. Because this region lies between the Atlantic and the mountains, it enjoys a temperate climate. The Atlas range cannot, however, shut out an occasional shergui, the hot easterly wind from the desert. The eastern slopes of the High Atlas have a semi-desert aspect and a rigorous pre-Saharan climate. In the north, and separate from the Atlas ranges, the Rif Mountains loom up sharply along the Mediterranean coast. Here, also, a mild climate prevails, which permits agriculture typical of the Mediterranean region.