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Ramsey County Multi-Hazard Mitigation Plan, 2018 <br /> <br />Page | 34 <br /> Warning Time Less than 6 <br />hours Less than 6 hours 4 <br /> <br /> <br />15% <br /> <br />6 to 12 hours 6 to 12 hours 3 <br />12 to 24 <br />hours 12 to 24 hours 2 <br />More than 24 <br />hours More than 24 hours 1 Duration Brief Up to 6 hours 1 <br />10% Intermediate Up to 1 day 2 <br />Extended Up to 1 week 3 <br />Prolonged More than 1 week 4 <br /> <br />The hazard rankings for the Ramsey County MHMP update (Table 10) were based upon review of 1) <br />hazard rankings in the past MHMP, 2) hazard rankings in the Calculated Priority Risk Index (CPRI) <br />conducted by the county, and 3) group review and discussion during the MHMP steering committee <br />meetings and public meetings. <br />Table 10. Hazard Ranking for 2018 MHMP Update <br /> <br /> <br />4.1.4 Hazard Profiling Concept of Planning <br />The risk assessments identify the characteristics and potential consequences of a disaster, how much of <br />the community could be affected by a disaster, and the impact on community assets. A risk assessment <br />consists of 3 components—hazard identification, risk profile and vulnerability profile. <br />4.1.5 GIS and Risk Assessment <br />The risk analysis step in this assessment quantifies the risk to the population, infrastructure and <br />economy of the community. Hazards that can be geographically identified (wildland fires, windstorms, <br />tornadoes, hail, floods) were mapped. <br />Natural Hazards <br />MHMP <br />Hazard <br />Ranking <br />Severe Summer Storms <br />(Thunderstorms, <br />Lightning, Hailstorms, <br />Windstorms, Tornadoes) <br />High <br />Severe Winter Storms <br />(blizzards, heavy snow, <br />ice storms) <br />High <br />Flash Flood & Riverine <br />Flood Moderate <br />Extreme Heat & Extreme <br />Cold Moderate <br />Drought Moderate <br />Erosion / Land Subsidence <br />(Sinkholes & Karst) <br />Low <br />[rockslides] <br />Wildfire Low <br />Dam Failure Low