Atmosphere becoming more turbulent? unusual cloud patterns seen in skies over Alabama

December 20, 2011ALABAMAFor a morning, the sky looked like a surfer’s dream: A series of huge breaking waves lined the horizon in Birmingham, Ala., on Friday (Dec. 16), their crests surging forward in slow motion. Amazed Alabamans took photos of the clouds and sent them to their local weather station, wondering, “What are these tsunamis in the sky?” Experts say the clouds were pristine examples of “Kelvin-Helmholtz waves.” Whether seen in the sky or in the ocean, this type of turbulence always forms when a fast-moving layer of fluid slides on top of a slower, thicker layer, dragging its surface. Water waves, for example, form when the layer of fluid above them (i.e., the air) is moving faster than the layer of fluid below (i.e., the water). When the difference between the wind and water speed increases to a certain point, the waves “break” — their crests lurch forward — and they take on the telltale Kelvin-Helmholtz shape. According to Chris Walcek, a meteorologist at the Atmospheric Sciences Research Center at the State University of New York, Albany, fast-moving air high in the sky can drag the top of slow-moving, thick clouds underneath it in much the same way. –Live Science
contribution Jamie
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8 Responses to Atmosphere becoming more turbulent? unusual cloud patterns seen in skies over Alabama

  1. jones2012 says:

    It very well may be a Kelvin-Helmholtz shape but it really looks like a harbinger of things to come.

    Luke 21:25 And there shall be signs in the sun, and in the moon, and in the stars; and upon the earth distress of nations, with perplexity; the sea and the waves roaring;

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  2. Irene C says:

    Strange looking, yes – but that would be an awesome sight.

    Maranatha

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  3. Dennis E. says:

    Seen clouds like this before on the internet. Was contributed to either weather modification program or HARRP, can’t remember, was it was in the far west.

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  4. Kaz says:

    Wow… how amazing is that?? What an incredible planet we live on. Shame we treat it with such contempt and disrespect. I feel that we’ll be paying for that in the not too distant future don’t ya think?
    Peace, Joy and Love
    Kaz :o)

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  5. Jamie says:

    The winds have been very unusual here in Michigan this Autumn and persistent. It is raining here at the moment which is extremely unusual for this time of year. The temperatures are fluctuating from the 20′s to the 50′s in no set pattern…which is what weather predictions were based upon;patterns. The fog was as thick as “pea soup” this morning and dissipated somewhat around 11:30 am.

    Peace be with us……..

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  6. mg says:

    this isn’t rare, it is everywhere. If people would pay attention they would see all the different pictures in them, occuring on a continual basis. Pictures are mainly of people and animals, and you can see them every day.

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  7. iva mcgoon says:

    have a safe trip if you have a holiday

    Like

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