Barak-Udum, the City of Storms, is a sky-port of the Kharadron Overlords in Ghur, floating above the peaks of Lendu.
To protect the sky-port from the many predatory beasts roaming the skies, the duardin of Barak-Udum have devised the Storm Beacons, floating devices powered by aether-gold that create a heavy storm within a certain radius. Seven such beacons are scattered across Barak-Udum, making it nigh impossible for most predators to reach the sky-port.
Of course this weather also affect the vessels of the Kharadron as well as the sky-port itself, and so the duardin of Barak-Udum know how to create devices that still work in heavy storms, and have also had to learn how to fly and navigate in such conditions.
The city itself is arranged around a large monolith, the largest Storm Beacon, which is surrounded by administrative buildings. The other six Storm Beacons, each about the size of an average human, have been placed around the edge of the city.