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An Omen? Roll Tide?

by coldwarrior ( 6 Comments › )
Filed under Climate, College Football, Headlines, meteorology at December 20th, 2011 - 12:53 pm

Is this a Roll Tide Omen about the coming NCAA national championship Game where LSU will Play the Crimson Tide of Alabama…Is Momma Nature Saying ‘ROLL TIDE!’

 

Pics from ‘Bama:

 


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.

“In the pictures [of the Birmingham sky] there is probably a cold layer of air near the ground where the wind speed is probably low. That is why there is a cloud or fog in that layer,” Walcek told Life’s Little Mysteries, a sister site to LiveScience. “Over this cloudy, cold, slow-moving layer is probably a warmer and faster-moving layer of air.”
Most of the time, the difference in wind speed and temperature between two layers of the atmosphere is small, and so the fast-moving air on top “simply slides smoothly over the slower-moving air like a hockey puck sliding along an ice surface,” Walcek said. At the other extreme, if the wind-speed difference is too large, the interface between the two layers breaks down into random turbulence.

Kelvin-Helmholtz waves form when the difference in the temperature and wind speed of the two layers hits a sweet spot. “What [these pictures] show is air between these two atmospheric layers that is just very close to that threshold for turbulence, and mixing to mix the two layers together,” he said

 

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6 Responses to “An Omen? Roll Tide?”
( jump to bottom )

  1. 1 | December 20, 2011 1:46 pm

    Beautiful photo!


  2. 2 | December 20, 2011 3:55 pm

    Indeed — ROLL TIDE!!!


  3. 3 | December 20, 2011 4:41 pm

    [...] wave-shaped clouds lined the horizon in Birmingham, Alabama 16 December 2011. [Found here via here.] Share this:FacebookStumbleUponTwitterMoreFacebookRedditDiggEmailPrintLike this:LikeBe the first [...]


  4. 4 | December 20, 2011 4:50 pm

    Awesome pics. This one gives it scale.


  5. 5 | December 20, 2011 7:09 pm

    @ Bunk X:

    Is this God’s way of saying he’s put $20 on ‘Bama?


  6. 6 | December 20, 2011 10:39 pm

    @ Carolina Girl:
    It’s God’s way of saying I don’t have to scrounge around for an OOT post for tonight.


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