World Weather Research Programme (WWRP)



Mesoscale Weather Forecasting Research

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To promote, organize and/or endorse end-to-end weather research and development projects (RDPs) that advance understanding of weather processes, improve forecasting techniques and increase the utility of forecast information with an emphasis on high-impact weather.


The Sixth Workshop and Science Meeting of the Convective and Orographically-induced Precipitation Study (COPS) was successfully held from 27 to 29 February 2008 at the University of Hohenheim, Stuttgart, Germany, where the first scientific results of the COPS campaign as well as the strategy for the exploitation of the wealth of data from this field experiment were discussed. COPS is an international field campaign initiated within the German 6-year Priority Programme and is a WWRP research and development project.

From May 16-19, 2008, the 2nd scientific meeting of D-PHASE, Demonstration of Probabilistic Hydrological and Atmospheric Simulation of Flood Events in the Alpine region, will be held in Bologna, Italy in conjunction with a midterm meeting of COST action 731 (Uncertainty Propagation in Meteo-Hydrological Forecasting Systems). D-PHASE is a WWRP Forecast Demonstration Project (FDP) to demonstrate the advances that were made in forecasting heavy precipitation events and related flash floods in the Alps as a result of the Mesoscale Alpine Programme (MAP). During the D-PHASE Operations Period from June to November 2007 more than 30 high-resolution probabilistic and deterministic atmospheric and hydrological forecast models were operated together with nowcasting tools to serve the needs of more than 60 end users. Key element of success was the common formats and evaluation programmes used on all the models in order to issue comparable precipitation and runoff warnings for a large number of catchments all over the Alps.

Progress continues on a research development project for the Beijing 2008 Olympic Games on mesoscale ensemble prediction designed to contribute to the better understanding and forecasting of high impact weather events, maily rainfall and wind, during summer season in Bejing. The effort includes a component aimed at demonstrating the societal and economic benefits of prediction systems.


Projects and activities Working Group Members


Convective and Orographically induced Precipitation Study (COPS)

Demonstration of Probabilistic Hydrological and Atmospheric Simulation of Flood Events in the Alpine Region (MAP D-PHASE)

Mesoscale Alpine Programme (MAP)

Chair: J. Onvlee, KNMI, The Netherlands
V. Wulfmeyer, Uni Hohenheim, Germany
M. Rotach, Meteoswiss, Switzerland
Y. Duan, National Met Center, China
D. Barker, Met Office, UK
S. Belair, Met Service of Canada
K. Saito, Met Research Institute, Japan

Upcoming meetings Past meetings, past presentations
  • Third Meeting of the Working Group on Mesoscale Weather Forecasting Research (tentative: Shanghai, China, December 2008)
  • COPS RDP Workshop (Strasbourg, 27-29 October 2008)

Second Meeting of the Working Group on Mesoscale Weather Forecasting Research (TOKYO, Japan, 17-18 March 2008)


Working group publications



Scientific publications of interest









WWRP Joint Scientiific Committee


2008 Calendar


Archive of past meetings


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