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Floods are the most common natural hazards with the largest impacts on society. Although exceptionally devastating floods distort the trend, flood impact records show that the number of related fatalities...

Offering operationally reliable, surface-based and space-based subsystems with observing facilities on land, at sea, in the air and in outer space in support of the World Weather Watch...

Addressing atmospheric composition on all scales: from global, regional, to local and urban.

Connecting people and institutions to  the learning opportunities necessary for well-functioning meteorological, hydrological and climate services.

Coordinating the activities of Members related to the space-based observing system component of the WMO Integrated Global Observing System to ensure sustained and interoperable satellite observations and to promote their...

Improving the availability of, and access to, reliable climate data, monitoring and forecasts.

Research activities focusing on high-impact weather – from basic research in the academic community to operational contributions.

 Enabling the delivery of weather and related services for sound decision-making on public safety and cost-efficiency in all social and economic activities affected by weather.

Assisting National Meteorological and Hydrological Services in providing weather and climate services to farmers, herders and fishermen in order to promote sustainable agricultural development, increase productivity and contribute to food security....

Providing reliable, high quality, timely and cost-effective meteorological services to aviation users worldwide.

WIGOS provides the new overarching framework for all WMO observing systems and for WMO contributions to co-sponsored observing systems in support of all WMO activities.

Providing observations, modelling and analysis of marine and ocean variables to support research, assessments and operational ocean services worldwide. 

Assisting Members in monitoring and forecasting tropical cyclones to reduce disaster-related losses of life and infrastructure.

Supporting the safety of life and property at sea, integrated coastal management and the minimization of societal impacts from natural hazards through the provision of meteorological-ocean services....

Improving the understanding of the climate system for the benefit of societies coping with climate variability and change.

Enhancing the contributions of National Meteorological and Hydrological Services (NMHSs) to disaster risk reduction (DRR) at all levels in a more cooperative, cost-effective, systematic and sustainable manner....

Whether due to natural climate variability or climate change, the likelihood of extreme weather conditions is increasing. The impacts include more frequent and severe droughts, which affect the...

Providing assistance and support to National Meteorological and Hydrological Services (NMHSs) in developing and least developed countries and small island developing states.

The Global Climate Observing System (GCOS) is a co-sponsored programme which regularly assesses the status of global climate observations and produces guidance for its improvement.  

It is co-sponsored...

The World Climate Research Programme (WCRP) coordinates and guides international climate research to develop, share and apply the climate knowledge that contributes to societal well-being.

Enabling worldwide use of specialized and tailored products in support of environmental emergency response involving large-scale dispersion of air-borne hazardous substances.

Assisting in the capacity development of National Meteorological and Hydrological Services (NMHSs) by improving human, technical and institutional capacities and infrastructure, particularly in developing, least developed and small island developing states and territories in order...

Setting technical standards, quality control procedures and guidance for the use of meteorological instruments and observation methods in order to promote development documentation and worldwide standardization.

Ensuring the efficient and effective functioning of the six WMO Regional Associations in coordinating the meteorological, hydrological, climatologic and related activities of their Members by providing a framework for...

Collecting, exchanging, processing and providing climate and hydrological observations, forecasts and data exchange to all WMO programmes.

Enabling the National Meteorological and Hydrological Services (NMHSs) in Least Developed Countries (LDCs) to enhance both human and institutional capacities in order to eradicate poverty, achieve internationally agreed development goals...

Coordinating the global system of telecommunication facilities and arrangements for the rapid collection, exchange and distribution of observations and processed information within the framework of the World Weather...

The GDPFS is an international mechanism that coordinates Member capacities to prepare and make meteorological analyses and forecast products available to all Members. It enables delivery of harmonized...

Small Island Developing States and Member Island Territories are low-lying island nations that are highly vulnerable and often affected by weather extremes and climate change, including the increased severity...

Providing better hydrologic information, assessments and forecasts, so that Members are able to independently assess their water resources and respond to the threat of floods and droughts....