This is an odd one

What we have on the BoM charts at the time of writing (15 July 2014) is a large cyclone south-east of Africa with a dark central core heading into the coast without much lateral action. This is reminiscent of the cyclogenesis for large earthquakes. It does deflate in sitū (sort of) but it leaves behind a giant col, outside which the parallel isobars of super-storms stretch across two ocean by midnight Friday and most of the Pacific too, by midnight Saturday.

We in Britain experience dull overcast (often in the form of mist or fog) immediately prior to a tropical storm. This would be signalled by a major peak in the Antarctic cyclones. However at the moment they are all huge, so a further phenomenon takes place, that of the cyclone breaking away.

Small break-aways usually signal tornadic stuff if the latitude remains low. When the get as high as the coast of Antarctica and continue to follow the coast, that is a signal for phreatic (VEI) activity.

I don’t know what to make of this set up:

15 July 2014.BoM 2

It’s another one to learn from. Click on the graphic to enlarge. (Opens in its own window.)


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