Water stress, water-related hazards, and water quality pose increasing challenges to modern society. Operational hydrology research is essential to support WMO Members in assessing, managing and standardizing hydrological data to reduce hazards and promote sustainable water use. 💧 WMO is advancing operational hydrology research by: ✅ Advocating for global hydrological data & monitoring ✅ Identifying state-of-the-art tools & methods ✅ Building partnerships across science, services & the private sector #WMO #ScienceForAction #Hydrology