Bert wrote,

The eye (Great Red Spot)looks like a
chaotic condition of the
atmosphere,possibly formed from
Jupiter's speed of spin,and that means
its area of spin(like a hurricane) must be
at its equator.

Bert, that's much in line with a theory I read many years ago which goes
like this (paraphrasing)-

In fluid dynamics, when a linear flow passes a critical velocity, it
must break into a vortex, as seen in a tornado, waterspout, bathtub
drain and the like. On Jupiter, the speed differentials between the
laterally-moving bands of the atmosphere have passed this critical
velocity, with the resultant vortex of the Great Red Spot. Its
permanence is the result of the permanence of those wind-speed
differentials. In other words, if the winds would slow down and the
speed differentials decreased sufficiently, the GRS would shrink and
vanish. =A0oc

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