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2025 Hazard Mitigation Plan <br />Klttitas Gounty, Washington <br />Table 4-125. Severe Weather Total Risk Score <br />tlutnerablilty lmpact <br />Hazard <br />Event Probability <br />Factor <br />16 15 40Strong Winds/Damaging <br />Winds 3 9 <br />16 26 48 48Thunderstorms26 <br />20 44 45Cold Wave/Extreme Cold 2 12 12 <br />17 41 42Heat Wave/Excessive Heat 2 12 12 <br />16 38 22Hail1b16 <br />16 38 22Tornado1616 <br />Consequence: Sum of all weighted factors. <br />Extent: Sum of the weighted Extent factors. <br />Vulnerability: Sum of the weighted Vulnerabilitv factors. <br />lmpactClassificationV'qtferabilfty <br />Impact: Sum of the weighted lmpact factors. <br />Total Risk Score = Probability x Consequence <br />* Normalized to 100 <br />Low (L)1 0-6 0-6 0-12 o -24 0 -24 <br />7-12 13 -26 25-50 25-52Medium (M)2 7 -12 <br />27 -39 51 -75 53 and aboveJ13-18 13 - 18 <br />The legend-specifically the assignment of low, medium, and high-provides an additional means to qualitatively assess the probability factor, sum of <br />weighted factors, and the total risk scores for each hazard. The Consequence Score represents the sum of the Extent, Vulnerability, and lmpact Factors. <br />The Total Risk Score ls a measure of Probabilitv and Consequence. <br />Total Risk <br />,,,,,1'- <br />.i,.trt,,l :, <br />1ir'1, <br />,' I ttl <br />iii,i r' 1l i i <br />Total Risk Score Legend <br />Total Risk <br />Score <br />Chapter 4: Hazard ldentification and Risk Assessment 173