Super Typhoon Haiyan entered the Philippine Area of Responsibility (PAR) 7 November 2013, causing tremendous damage to infrastructure and loss of lives mainly due to the storm surge and strong winds. Storm surges up to a height of 7m were reported in the hardest hit areas. The threat imposed by this kind of natural calamity compelled5 researchers of the Nationwide Operational Assessment of Hazards (Project NOAH), the ?agship disaster mitigation program of the Department of Science and Technology (DOST), Government of the Philippines, to undertake a study to determine the vulnerability of all Philippine coastal communities to storm surges of the same magnitude as those generated by Haiyan. This study calculates the maximum probable storm surge10 height for every coastal locality by running simulations of Haiyan-type conditions but with tracks of tropical cyclones that entered PAR from 1948–2013. One product of this study is a list of the 30 most vulnerable coastal areas that can be used as basis for choosing priority sites for further studies to implement appropriate site-speci?c solutions for ?ood risk management. Another product is the storm tide inundation maps15 that the local government units can use to develop a risk-sensitive land use plan for identifying appropriate areas to build residential buildings, evacuation sites, and other criticalfacilitiesandlifelines.Themapscanalsobeusedtodevelopadisasterresponse plan and evacuation scheme.