The paper describes the main tasks and features for emergency interventions in the marine environment and describes the computation and information system required to support and planning fast and efficient operations. The most common causalities that activate emergency procedures are identified and the main features of the Search And Rescue (SAR) intervention are described as well as the inputs and details that are required. A more detailed description is given of the existing components for an integrated information system in the Portuguese coasts, from the computation of the environmental conditions to the adoption of dedicated graphical interface that provides all the necessary information in a clear and complete way.