On Oct 14, 2:54*pm, Len Wood wrote:
Curvature shown by the clouds on this suggest that this is a
mesocyclone.
Moving over IOW and Dorset.http://www.sat24.com/en/gb

Origins?
Inititiated by SST air temp difference possibly. Shallow Cu clouds.

Len Wood

The cloud was the result of an upper low/cold pool which was
indentifiable up to around the 700mb level on the Met Office NAE model
products.

Dick Lovett