This publication, 1150 Part II follows WMO-No. 1150, Part I which was published in 2015. In the intervening years, as many National Meteorological and Hydrological Services (NMHS) and their partner agencies developed impact-based forecast and warning services (IBFWS), understanding, experience and knowledge in this area has developed and grown significantly. The material presented in this “1150 Part II” seeks to distil and summarise that knowledge and to provide examples of good practices in IBFWS, illustrating and augmenting the insights contained in the original guidelines.
This publication presents the progress of implementing IBWFS globally. It is still very much in the very early stages and there is still much benefit to be offered, especially to the most vulnerable communities in the world, through continuing the work of applying the concepts of IBFWS and strengthening them wherever possible. IBFWS is a rapidly evolving field and the additional chapters here should be considered as reflecting and complementing the growing body of literature on IBFWS, emanating from WMO. The team of experts who assembled these Guidelines hope that they can make some contribution to this progress.