Small and medium-sized towns and cities need help in studying and communicating local climate change impacts, and in using this information in planning and decision-making. Several free GIS mappers developed by NOAA and other agencies allow visualization of storm surge impact, but these are not integrated with local planning tools. To address this, IAI and its collaborator, Towson University have been awarded a contract entitled, “Climate Impact Visualization Tools using Virtual 3D City for Community based Planning and Outreach.” IAI will develop an innovative visualization tool that transforms online GIS mappers into a climate impact assessment and planning tool, allowing planners to visualize the impact of storm surges with sea level rise and coastal erosion using a 3D virtual city. The tool will assist planners and emergency services to adapt to climate change at three tiers: Tier 3 (Long-term Planning & Near-term Mitigation) to facilitate city planning, zoning and building code decisions, and mitigation plans such as levees and barriers for existing structures; Tier 2 (Readiness) to facilitate developing mitigation action to minimize material damage from a forecasted weather event within 120 hours of landfall; and Tier 1 (Response) to establish a community-based tiered communication mechanism (built on Commercial Mobile Alert System (CMAS)/Wireless Emergency Alerts (WEA) systems) to plan for efficient use of limited emergency service resources within 48 hours of storm landfall. Key features include the Unity 3D Game Engine based visualization and what-if planning analysis, hydrodynamic model based damage assessment and visualization, integration with SLOSH generated storm surge data, coastal inundation model, and a community based outreach tool. This interactive tool does not require substantial training or infrastructure, and can be easily adopted by urban planners.