Sighting of the freshwater jellyfish is characterized as sporadic and the Nature Conservancy web site says
Looking through previous reports here on NC Divers, most sightings are in October or November. There were many reports in 2005-2007 and again in 2011. But none since 2011.Researchers aren't quite sure why the occurrences of these capricious creatures are so unpredictable. In some lakes and rivers, freshwater jellyfish may be present one year, but not the next. Then again, there are some waters that boast them almost every year.
Terry Peard's web site shows reports by state and the reports there also show sightings in the years 2005, 2006 and 2011 for Fantasy Lake and Rolesville Quarry.
The visibility has improved and I could just make out the surface while at 25 ffw. There were quite a few other divers out at the quarry, including a Zombie Apocalypse Diver class.
Good day, enjoyed the dive!