This technical note introduces two powerful frameworks for navigating complex, rapidly changing business environments: TSUNAMI and SURF. The TSUNAMI framework provides a comprehensive tool for assessing external challenges across seven dimensions: technological disruption, socio-economic shifts, upheaval potential, network vulnerability, accelerating climate impacts, market transformation, and impact intensity. The SURF framework complements this by focusing on developing adaptive organizational capabilities: strategic thinking, unified ecosystem leadership, resilient organization and flexible tenacity. The note offers detailed explanations of each framework, practical assessment tools and guidance on their application. It serves as a standalone resource for leaders and organizations seeking to enhance their ability to thrive in turbulent times. Additionally, it provides the theoretical foundation for the GreenGro case series (A) and (B) (IMD-7-2627 and IMD-7-2628), which illustrates the practical application of these frameworks in a real-world scenario. Whether used independently or in conjunction with the GreenGro cases, this technical note equips readers with valuable tools for systematic analysis of complex business environments and development of adaptive organizational capabilities. It is designed to be relevant across various industries and applicable to different levels of management education, from advanced undergraduates to executive education participants.