High-performance computing requirements for medium-range weather forecasting, A. Simmons; MPP activities at NMC, J. Sela; a data-parallel HIRLAM forecast model, L. Wolters; areas of concern for multiprocessing - revisited after 10 years, G.-R. Hoffmann; a unified scheme for controlling load balance, cache use and vector length in the unified model, R. Ford; HPCN in Europe, H. Forster; on the subject of comparison of message-passing and data parallel programming methods using a shallow sea model, M. Ashworth; the IFS model - overview and parallel strategies, D. Dent et al; heterogeneous distributed computing for weather forecasts, R. Vaccaro; parallelism in semi-Lagrangian transport, R. Skalin. (Part Contents).