Is the national or regional meteorological organization with the highest level of weather forecasting in the world currently the European Center for Medium-Range Weather Forecasts?

Pretty much. The European Center for Medium-Range Weather Forecasts (ECMWF) is an international organization including 24 EU member states. It is a unique international weather forecasting and business organization in the world today. Its predecessor was a European science and technology cooperation project (COST). In 1973, relevant countries held a conference to announce the formal establishment of ECMWF. In June 1979, it began to produce medium-term weather forecasts. On August 1, 1979, it officially began to produce operational medium-term weather forecast products. . ECMWF mainly provides 10-day medium-term numerical forecast products. Each member country obtains these products through a dedicated regional meteorological data communication network and makes its own medium-term forecast. At the same time, ECMWF also provides information to the world through the global communication network maintained by the World Meteorological Organization (WMO). All countries send some useful medium-range numerical forecast products.