In this presentation the ongoing development of the CSIS and supporting activities such as the North American Climate Services Partnership, Regional Climate Outlook Fora and similar efforts in other countries will be outlined. Focus will be placed on both the operational capabilities and the longer-term needs to support resilience in the above priority areas. Lessons will be drawn for strengthening U.S. information systems across the weather and climate continuum as these support multi-hazard warnings, adaptation and ultimately a Weather-Ready Nation. These lessons will focus on • The science needed to support the development and provision of climate services • Improving information on how changes in extremes in key phenomena such as drought, floods, and heat stress impact management decisions for planning, response and adaptation • Developing regional and national integrated information systems to address these emergent challenges, that integrate observations, monitoring and prediction, impacts assessments and scenarios, preparedness and adaptation, and coordination and capacity-building. While existing decision support activities can be identified in many disparate settings (e.g. federal, academic, private), the challenge of changing environments (coupled physical and social) is actually one of crafting information systems strategies for improving decision quality (not just meeting "user needs"), overcoming weaknesses in co-production models, coordinating innovation mapping and diffusion, and providing fora and visualization tools (sometimes termed “discussion-support”) to identify common interests and differences in the way risks are perceived and managed.