morning glory

maybe the great clouds are just all over the southern pacific.  wow:

Morning Glory Clouds Over Australia
Credit & Licence: Mick Petroff; Tip Thanks: James Holmes (Cairns)

Explanation: What causes these long, strange clouds? No one is sure. A rare type of cloud known as a Morning Glory cloud can stretch 1,000 kilometers long and occur at altitudes up to two kilometers high. Although similar roll clouds have been seen at specific places across the world, the ones over Burketown, Queensland Australia occur predictably every spring. Long, horizontal, circulating tubes of air might form when flowing, moist, cooling air encounters an inversion layer, an atmospheric layer where air temperature atypically increases with height. These tubes and surrounding air could cause dangerous turbulence for airplanes when clear. Morning Glory clouds can reportedly achieve an airspeed of 60 kilometers per hour over a surface with little discernible wind. Pictured above, photographer Mick Petroff photographed some Morning Glory clouds from his airplane near the Gulf of Carpentaria, Australia.


2 Responses to “morning glory”

  1. 1 George August 25, 2009 at 4:22 pm

    no way is that real! it’s too crazy!

  2. 2 MommaDeb August 25, 2009 at 6:25 pm

    Very interesting? Are you thinking of applying for work there? I have a friend who has a daughter there. Those are beautiful clouds!

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Keep me away from the wisdom which does not cry, the philosophy which does not laugh and the greatness which does not bow before children.
-Kahlil Gibran

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