Found this unique comment on
www.dxlc.com/solar/
"There is an unusually large and dense J-shaped filament in the northeast quadrant and rotating into the northwest quadrant, it is trailing coronal hole CH76 and has nearly the same shape. An eruption of this filament will cause a large CME.
Coronal mass ejections (CMEs)
January 18: The M1 flare early in the day in region 10540 was likely associated with an earth directed CME. No LASCO images are yet available to confirm this.
January 17: The major M5 flare in region 10540 was likely associated with an earth directed CME. No LASCO images are yet available to confirm this.
January 15-16: No partly or fully earth directed CMEs observed."
And at the nasa site there is a "special" explanation of "Prominence" that might correlate to the J-shaped filament mentioned. Still don't know if this has anything to do with the dark CME. Will keep looking.
Blu
PS that is one of my favorite sites to visit too, DS. Lots of data there.