: W. Oxfordshire 15 Sep 2013 KH waves (? RFMI ) -

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W. Oxfordshire 15 Sep 2013 KH waves (? RFMI ) Not sure if they are or not

#1 User is offline   Floss the dog 

  • Group: Frouks
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  • LocationMinster Lovell, W. Oxfordshire

Posted 15 September 2013 - 10:31

Sunday 10:45 looking west from Minster Lovell.
They seem to look like KH waves but not really sure if they are.
Can anyone confirm please ?

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#2 User is offline   Tony Gilbert 

  • Group: Chasers
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  • LocationGosport, Hampshire

Posted 15 September 2013 - 14:31

Yes, Kelvin Helmholtz Waves! Typical for todays high mid level shear conditions. Witnessed some this morning west of Petersfield Hants.
This strange and fairly rare sight often occurs when the layers of the atmosphere are strongly sheared within one specific level. In short, lighter flow to stronger flow within a short vertical distance! Ultimately producing a corkscrew effect within that layer of cloud.

This post has been edited by Tony Gilbert: 15 September 2013 - 14:36

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