This session covers concepts and practices of mapping and modeling integrating atmospheric, hydrologic, and climatic data with GIS and related technologies demonstrating the relevance of GIS to weather, hydrologic, and climate services. GIS technology gives the user almost limitless potential to convey and contextualize data from different sectors and provide insight into weather and water phenomena. This session will focus on two application areas: 1) using local and cloud-based tools for the analysis of weather and water data integrated with data from areas such as human demographics, modeling, and disaster planning; and 2) sharing those analyses in web applications such as dashboards, inquiry tools, and stories.