MCS gone backwards.

Has anybody seen this happen before? There is a WESTWARD moving MCS in the southern US. It's producing severe weather in the form of high winds which are blowing out of the EAST! :blink: It looks similar to a "ring of fire" pattern which occurs on the northern edges of a ridge, so is this convection on the southern edge of a surface high?

How often does this occur?
I also noticed how the severe Iowa-Illinois-Missouri complex started out heading eastward this morning, and took a curved trajectory back around to the southwest by this evening. You can see this pretty well on the SPC storm reports page.
MCS activity usually follows the 1000-500mb thickness line, which lines up perfectly with the movement of todays bow echo/derecho.