The stable cloud mass that sits on the Misty Sea. It blankets nearly the entire breadth of the water and skyships and airships must rise above it to cover the area. Its too dangerous to cut through as it throngs with lightning, stormy weather, and magnetic eddies and erratic winds.
Ships on the surface of the Misty Sea can easily sail under it as the stormy mass of the cloud sits somewhere between 180 to 300 ft depending on where one is on the Misty Sea.
Sometimes columns of the storm mix above alight on the surface of the Misty Sea, usually during the windy and storm season of Arduin, which runs from Vaen to Torkos.