Homeland Security Emergency Management
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HOMELAND SECURITY EMERGENCY MANAGEMENT ENSURING SAFETY. PROTECTING COMMUNITIES. State Multi-Hazard Mitigation Plan Update 2018 1 [This Page Intentionally Left Blank] 2 Administrative Handling Instructions The following State Multi-Hazard Mitigation Plan is an Unclassified compilation of open source and publicly available information on the threats and hazards that have the potential to impact the State of New Hampshire, information relating to disasters and emergencies that the State has experienced, and a strategy for reducing or eliminating the long term risks posed by the threats and hazards. This document is authorized for public release. For questions or additional information, please contact New Hampshire Homeland Security and Emergency Management at 603-271-2231 or by email at [email protected] 3 [This Page Intentionally Left Blank] 4 Table of Contents Administrative Handling Instructions ..................................................................................... 3 Certificate of Adoption .......................................................................................................... 9 Record of Changes ............................................................................................................... 11 Record of Distribution/Availability ...................................................................................... 11 Acknowledgements ............................................................................................................. 11 Executive Summary ............................................................................................................. 13 Introduction ........................................................................................................................ 15 What are Threats and Hazards? .......................................................................................................... 15 What is Hazard Mitigation? ................................................................................................................ 16 Background and Authority .................................................................................................................. 16 Purpose ............................................................................................................................................... 17 Scope and Jurisdiction......................................................................................................................... 17 Assurances .......................................................................................................................................... 17 Plan Goals and Objectives .................................................................................................... 19 Overarching Goals ............................................................................................................................... 19 Natural Hazard Objectives .................................................................................................................. 19 Technological Hazard Objectives ........................................................................................................ 19 Human-caused Hazard Objectives ...................................................................................................... 20 Planning Methodology ........................................................................................................ 21 Basic Methodology.............................................................................................................................. 21 Meeting Schedule and Activities ......................................................................................................... 21 State Multi-Hazard Mitigation Planning Committee .......................................................................... 23 Narrative Description of the Process .................................................................................................. 24 Federal Agency Coordination .............................................................................................................. 27 State Agency Coordination ................................................................................................................. 27 Participation ........................................................................................................................................ 27 Private Entity, NGO, Academic, Business and Industry, and Other Sector Participation ................... 28 Plan and Program Integration ............................................................................................................. 28 State Profile ........................................................................................................................ 31 State Overview .................................................................................................................................... 31 Geography and Climate ...................................................................................................................... 32 Economy .............................................................................................................................................. 32 Government ........................................................................................................................................ 33 Higher Education ................................................................................................................................. 33 Transportation Systems ...................................................................................................................... 33 Population Changes and Estimations .................................................................................................. 35 Current and Future Development Trends ........................................................................................... 36 Development in Hazard Prone Areas .................................................................................................. 37 Hazard Identification and Risk Assessment .......................................................................... 40 Introduction ........................................................................................................................................ 40 Threat and Hazard Identification and Risk Assessment (THIRA) Integration ...................................... 40 5 2018 State Multi-Hazard Mitigation Plan Update Hazard Identification ............................................ 42 Hazard Changes between 2013 and 2018 Plans ................................................................................. 43 History of Disaster Declarations in New Hampshire .............................................................. 44 List of Major Disaster Declarations ..................................................................................................... 44 List of Major Disaster Declarations (cont…) ........................................................................................ 45 List of Emergency Declarations ........................................................................................................... 45 List of Non-Declared Major Events since 2013 ................................................................................... 46 Hazard Profiles and History of Events................................................................................... 47 Natural Hazards ......................................................................................................................... 47 Avalanche ............................................................................................................................................ 47 Coastal Flooding .................................................................................................................................. 50 Inland Flooding.................................................................................................................................... 64 Drought ............................................................................................................................................... 82 Earthquake (>/=4.0) ............................................................................................................................ 91 Extreme Temperatures ....................................................................................................................... 99 High Wind Events .............................................................................................................................. 106 Infectious Diseases ............................................................................................................................ 111 Landslide ........................................................................................................................................... 116 Lightning ............................................................................................................................................ 123 Severe Winter Weather .................................................................................................................... 128 Solar Storms and Space Weather...................................................................................................... 139 Tropical and Post-Tropical Cyclones ................................................................................................