John Allen said:
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Actually Jimmy I would think that the shear was a more key ingredient here…its been missing for much of the season and every time it pops its head up suddenly there are supercells.
I never commented on the shear – my suggestion was that steep lapse rates led to disorganised storms to explode and rapidly become severe and I guess combined with shear was able to rotate quite quickly.
Im a space of 15 minutes, a right mover developed rapid organisation as shown in my series of photographs.
This is by far the supercell outbreak of the season.
Regards,
Jimmy Deguara