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Sherburne County Multi -Hazard Mitigation Plan, 2020 4.1.2 Hazard Prioritization and Vulnerability Assessment by Jurisdiction Prioritization of Hazards As part of the plan update process, the steering committee reviewed, updated, and prioritized the hazards faced by residents of Sherburne County, updated the existing mitigation actions published in the 203.3 Multi -Hazard Mitigation Plan, and proposed new mitigation actions. To engage in this process, the committee drew on a number of data sources. First, the committee examined the hazards identified in the 203.3 Multi Hazard Mitigation Plan (Table ii). The natural hazards that pose risk to Sherburne County were discussed and adjusted to reflect the definitions of natural hazards used in the 2019 Minnesota State Hazard Mitigation Plan. This was done in orderto assure that the risks faced by Sherburne County were categorized the same way as the priority hazards established by the State of Minnesota. Table 11. Natural hazards identified in the 2013 Sherburne Counhj Multi -Hazard Mitigation Plan Severe Winter Storms Severe Thunderstorms Tornadoes Lightning Extreme Temperatures Hailstorms Flooding Drought Wildland Fire Dam Failure While the focus of this MHMP is on natural hazards, planning took place with the understanding that many non -natural hazards could occur as a result of natural disasters (i.e. disruption in electrical service due to downed power lines from heavy snow, ice storms or high wind events). This plan draws on a variety of data sources including the State of Minnesota and Homeland Security Emergency Management Critical Infrastructure Strategy for the State of Minnesota (2oio), FEMA's Local Mitigation Planning How-to Guide Integrating Manmade Hazards into Mitigation Planning (2003), and the State of Minnesota Multi Hazards Identification Risk Assessment. The prioritization of hazards forthe Sherburne County MHMP Update (Table 12) was based upon group review and discussion of the natural hazards that pose risk to the county during the MHMP kick-off steering committee meeting on May 31, 2019. In the review of each hazard, the group was asked to consider if the risk to severe natural hazards had increased or decreased since the last plan, and if this affected their priority level to mitigate against that hazard. The group agreed that since the 203.3 plan the prioritization of flooding and erosion/land subsidence should be moved from moderate to high due to an increase in high rain and flooding events. The prioritization for wildland fire was moved from low to moderate due to an increase in development in higher risk areas. Severe winter storms and severe summer storms continued to be high priority hazards to address as previously in 2013. Drought remained moderate and dam failure remained low. Appendix E: Steering Committee Meetings provides the steering committee discussion notes from the May 31, 203.9 meeting. Page136