I'm still thinking about this [link to www.solen.info] You can see the size and shape/location of the recurrent Coronal Hole 536 which matches perfectly the huge structure on the North-Everywhere here [link to sdo.gsfc.nasa.gov] - The shield like structure fully extends even further South,you can see this here [link to sdo.gsfc.nasa.gov] .

All in all,it is bloody massive and any event that happens within the area of CH536 will be amplified by the associated High Speed Stream.