MORNING GLORY CLOUDS are a roll cloud that can be up to 1,000 - TopicsExpress



          

MORNING GLORY CLOUDS are a roll cloud that can be up to 1,000 kilometres long, 1 to 2 kilometres high, often only 100 to 200 metres above the ground and can move at speeds up to 60 kilometres per hour. Sometimes there is only one cloud, sometimes there are up to eight consecutive roll clouds. 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.
Posted on: Fri, 19 Jul 2013 07:00:51 +0000

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