The Whirlwinds were a sentient humanoid species who were presumably composed of gaseous compounds. A Whirlwind were present at Crseih Station's Crater Lodge in 14 ABY where Lord Hethrir and other members of the Empire Reborn movement were lodging while trading in kidnapped alien slaves and paying a visit to the Universe-traveling "faith-healer" Waru, whom presumably healed the creature.