Extraordinary session of the World Meteorological Congress (Cg-Ext 2021) - (Online)

Extraordinary session of the World Meteorological Congress (Cg-Ext 2021) - (Online)

An extraordinary session of the World Meteorological Congress will be held online from 11 to 22 October 2021.

The Extraordinary session of the World Meteorological Congress is being convened following the decision of the Eighteenth session of the World Meteorological Congress to address specific items of the highest importance to the Organization: progress with the WMO reform, WMO support for the global water agenda and the Earth System Data Exchange.  A Hydrological Assembly, as an open committee of Congress, will be convened as an online parallel event.

Online registration, the annotated agenda and documents are available on the session website (here).

Unified WMO Data Policy Resolution (Cg-Ext 2021)

The free and unrestricted exchange of observational data from all parts of the world and of other data products among all WMO Members must be updated and strengthened to accommodate the explosive growth in the demand for weather, climate and water monitoring and prediction data to support essential services needed by all sectors of society, as they face issues such as climate change, increasing frequency and impact of extreme weather, and implications for food security.

Water and Climate Coalition

Water Coalition

The Water and Climate Coalition is a multi-stakeholder initiative under the Sustainable Development Goal 6 (water and sanitation for all) Accelerator framework. It provides tangible action, activities and policy support for an integrated water and climate agenda and focuses on data, information, monitoring systems and operational capacity.

Systematic Observations Financing Facility

The Systematic Observations Financing Facility (SOFF) will support countries to generate and exchange basic observational data critical for improved weather forecasts and climate services. It will provide technical and financial assistance in new ways – applying internationally agreed metrics - the requirements of the Global Basic Observing Network (GBON) - to guide investments, using data exchange as a measure of success, and creating local benefits while delivering on a global public good.

Global Basic Observing Network (GBON)

GBON video surface

The Global Basic Observing Network (GBON) – approved by the World Meteorological Congress in 2018 – represents a new approach in which the basic surface-based observing network is designed, defined and monitored at the global level. Once implemented, GBON will improve the availability of the most essential surface-based data. This will have a direct positive impact on the quality of weather forecasts and information that will help to improve the safety and well-being of citizens throughout the world.

Although GBON can be implemented relatively quickly over the territory of most WMO Members in the developed world, in many developing countries additional investment and capacity development will be needed. WMO is working closely with the international development and climate finance communities to facilitate this. 


Also on the agenda

WMO support to the global water agenda

Vision and Strategy for Hydrology and associated Action Plan

Draft version recommended for adoption by EC-73 (revised version will soon be available on Cg- Ext 2021 session website).


WMO Water Declaration

Draft version endorsed by EC-73, revised version available soon on Cg-Ext(2021) website

International Meteorological Organization (IMO) Prize

David Grimes, the laureate of the sixty-fifth IMO Prize and former President of the World Meteorological Congress, will present the IMO Lecture.