Every year floods ravage large swathes of the Indus, Ganges, and Brahmaputra (IGB) river basins in the Hindu Kush Himalaya (HKH), killing thousands of people and affecting the livelihoods of millions (Figure 1). Flood disasters undermine progress made towards achieving the United Nations Sustainable Development Goals. Monitoring the likelihood of flood occurrences in these river basins using stateof- the-art tools and technologies can improve preparedness and minimize loss of human lives and livelihoods.