Holmes County Local Mitigation Strategy DRAFT2021 Holmes County Board of County Commissioners Holmes County Local Mitigation Strategy Committee Table of Contents LIST OF FIGURES ..................................................................................................................................................... 3 EXECUTIVE SUMMARY ........................................................................................................................................... 5 INTRODUCTION ...................................................................................................................................................... 6 I. PLANNING PROCESS ...................................................................................................................................... 6 A. PLANNING SCHEDULE ............................................................................................................................................. 6 B. PUBLIC AND PRIVATE-SECTOR PARTICIPATION .............................................................................................................. 8 C. Review of Existing Plans and Information…………………………………………………………………………………………………….8 D. REPRESENTATION ON THE LOCAL MITIGATION STRATEGY COMMITTEE .............................................................................. 9 II. HOLMES COUNTY PROFILE ........................................................................................................................... 11 A. COUNTY SPATIAL PROFILE ............................................................................................................................................ 11 B. POPULATION DEMOGRAPHICS ................................................................................................................................ 13 C. CRITICAL FACILITIES .............................................................................................................................................. 14 III. VULNERABILITY ASSESSMENT ...................................................................................................................... 20 A. GENERAL OVERVIEW ............................................................................................................................................ 20 B. HAZARD IDENTIFICATION ....................................................................................................................................... 21 C. VULNERABILITY ANALYSIS ...................................................................................................................................... 23 IV. HAZARD ASSESSMENT ............................................................................................................................. 24 A. HURRICANE/TROPICAL STORM ............................................................................................................................... 24 1. Hazard Description ..................................................................................................................................... 24 2. Impacts ....................................................................................................................................................... 25 3. Historical Events ......................................................................................................................................... 27 4. Probability .................................................................................................................................................. 29 5. VulnerabilityDRAFT Assessment ............................................................................................................................ 30 6. Extent ......................................................................................................................................................... 31 B. FLOODING .......................................................................................................................................................... 31 1. Description .................................................................................................................................................. 31 2. Impacts ....................................................................................................................................................... 33 3. Historical Events ......................................................................................................................................... 35 4. Probability .................................................................................................................................................. 37 5. Vulnerability ............................................................................................................................................... 37 6. Extent ......................................................................................................................................................... 42 C. DROUGHT/HEAT WAVE .............................................................................................................................................. 43 1. Hazard Description ..................................................................................................................................... 43 2. Impact ........................................................................................................................................................ 44 3. Historical Events ......................................................................................................................................... 44 4. Probability .................................................................................................................................................. 46 5. Vulnerability ............................................................................................................................................... 46 6. Extent ......................................................................................................................................................... 47 Holmes County Local Mitigation Strategy – 2021 1 | Page D. EROSION ............................................................................................................................................................ 48 1. Hazard Description ..................................................................................................................................... 48 2. Impacts ....................................................................................................................................................... 49 3. Historical Events ......................................................................................................................................... 49 4. Probability .................................................................................................................................................. 50 5. Vulnerability ............................................................................................................................................... 51 6. Extent ......................................................................................................................................................... 52 E. SINKHOLES ......................................................................................................................................................... 52 1. Hazard Description ..................................................................................................................................... 52 2. Impacts ....................................................................................................................................................... 53 3. Historical Events ......................................................................................................................................... 53 4. Probability .................................................................................................................................................. 53 5. Vulnerability Assessment ............................................................................................................................ 54 6. Extent ......................................................................................................................................................... 55 F. TORNADOS ........................................................................................................................................................ 55 1. Hazard Description ..................................................................................................................................... 55 2. Impacts ....................................................................................................................................................... 56 3. Historical Events ......................................................................................................................................... 57 4. Probability .................................................................................................................................................. 58 5. Vulnerability ............................................................................................................................................... 58 6. Extent