TY - RPRT AU - R.J. Reed AU - A. Hollingsworth AU - W.A. Heckley AU - F Delsol CY - Shinfield Park, Reading DA - 09/1986 LA - eng M1 - 58 M3 - Technical Report PB - ECMWF PP - Shinfield Park, Reading PY - 1986 EP - 90 TI - An evaluation of the performance of the ECMWF operational forecasting system in analysing and forecasting tropical easterly disturbances. Part 1: Synoptic investigation ER -