Terra Merbia is the home terra of the Merb race. This terra has never been seen in the show, only mentioned, and as such not much is known about this terra. Terra Merbia was attacked by Cyclonians years before the founding of the new Storm Hawks. It is also Stork's home terra.
According to Asaph "Ace" Fipke, Terra Merbia is "filled with thousands of natural disasters that seem to be taking place at any given point".