Res 2018-025/adopting the 2018 Hays County, Texas Hazard Mitigation Plan as the official plan of the City; authorizing the inclusion of the City of San Marcos Hazard Mitigation Plan as an appendix; designating the City Manager as the official authorized

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Hays County Hazard Mitigation Plan, Hays County Annex Section 2: Risk Assessment Hays County Jurisdictional Hazards This section contains Hays County’s hazard profiles for each natural hazard included in the Hays County HMP Update. Profiles include: • Location - the area where the hazard is known to occur • Previous Occurrences - a history of reported events for the hazard • Significant Previous Occurrences (when applicable) - notable hazard events within the community Risk Assessment • Extent - the strength or magnitude of the hazard • Probability - the likelihood of the hazard event occurring in the future • Impact - the consequence or effect (or possible effect) of hazard events • Vulnerability Summary - identification of structures, systems, populations or assets susceptible to loss or damage and how they are/could be impacted Hazard descriptions and extent scales for hazard magnitudes are found in Chapter 2, the risk assessment portion of the main plan document. When available, data specific to the unincorporated portions of Hays County was used for hazard analysis. When no instances were reported specifically for that area for regional hazards, County-wide data (including incorporated jurisdictions) was applied. State and national datasets were used to determine occurrence, extent, and the respective probabilities, rather than verbal testimonies, in an effort to retain data consistency. For some hazards, the National Oceanic and Atmospheric Administration (NOAA) Storm Events Database was used as the most comprehensive data available for hazards. The Storm Events Database does not always reflect the most recent totals for fatality, injury and damage amounts for previous hazard occurrences. The Previous Occurrences paragraph identifies instances in which these inaccuracies may occur. Verbal testimony, when available, was integrated into impact or vulnerability summaries to account for updates in this data. Hazards profiled within the risk assessment include: • Drought - Within Chapter 2, the risk assessment portion of main plan document. • Extreme Heat - Within Chapter 2, the risk assessment portion of main plan document. • Severe Winter Storms - Within Chapter 2, the risk assessment portion of main plan document. • Lightning - Within Chapter 2, the risk assessment portion of main plan document. • Hailstorms • Windstorms • Tornadoes • Expansive Soils • Floods • Hurricanes/Tropical Storms • Earthquakes • Dam/Levee Failure • Wildfires 6