This is the second of a series of 4 courses in the application of Conceptual Models in forecasting, It offers the opportunity of guidance, consultation and discussion among participants and expert tutors triggered by activities and simulations which were developed in the framework of a WMO project as a resource: ” Workbook for the Application of Conceptual Models”. This course is based on SALLJ & MCS conceptual model ( Vlab project “Conceptual Models for the Southern Hemisphere (CM4SH)”- Eumetsat-WMO)