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Cinnamon Chasers - Minimalia

Morning Glory - The Perfect Cloud

The Morning Glory cloud is a rare meteorological phenomenon observed in Northern Australia's Gulf of Carpentaria. A Morning Glory cloud is a roll cloud that can be up to 1000 kilometres long, 1 to 2 kilometres high, and can move at speeds up to 60 kilometres per hour. The Morning Glory is often accompanied by sudden wind squalls, intense low-level wind shear, a rapid increase in the vertical displacement of air parcels, and a sharp pressure jump at the surface. In the front of the cloud, there is strong vertical motion that transports air up through the cloud and creates the rolling appearance, while the air in the middle and rear of the cloud becomes turbulent and sinks. The cloud can also be described as a solitary wave or a soliton, which is a wave that has a single crest and moves without changing speed or shape. The 178 pop. settlement of Burketown annually attracts glider pilots bent on riding this phenomenon.

Source: http://en.wikipedia.org/wiki/Morning_Glory_cloud