The region of Netherstorm was a verdant open range called the Fields of Farahlon until Draenor was ripped apart by Ner’zhul’s dimensional portals.
It used to be where the Laughing Skull Clan had their holdings, but when Ner’zhul opened his portals, the land was torn apart, and is now a series of suspended islands floating loosely in the Twisting Nether. The problem has been further exacerbated by the Mana Forges. The more pure energy the Forges produce, the more unstable the region becomes. If the Forges are not dealt with soon, the entirety of Outland may be completely destroyed.
Normally imperceptible to mortals, the Twisting Nether bled into the physical realm and unleashed a tumultuous arcane storm that warped the surrounding territory. The blood elves are now using the technology of a captured naaru vessel to harness the storm’s magic, further compromising the already unstable land.