Which waterfall has the largest single-volume flow by season?

Iguazu Falls is frequently cited for its enormous seasonal water volume, especially during periods of heavy rainfall. Peak flow can reach roughly 12,000 cubic metres per second, making it one of the most powerful waterfall systems in the world. Its many channels and cascades spread the water over a wide cliff line, creating a thunderous display. Flow varies significantly with rainfall and river conditions, so the exact ranking depends on timing and measurement methods. Even so, Iguazu is one of the clearest examples of a waterfall defined by force as much as height.