'Space hurricane' that rained electrons observed for the first time
It seems to be spewing outwards from a point - the orifice - and not gathering together from above and converging on one point, the orifice.
I don't know what has caused this expression. Has there been solar activity lately?
Although it seems to be spraying outwards, it is remaining within the confines of what David LaPoint calls a 'confinement dome'.