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2025 Hazard Mitigation Plan <br />Kittitas County, Washington <br /> <br /> <br />Table of Contents viii <br />Table 4-148. Wildfire Total Risk Score............................................................................................. 196 <br />Table 4-149. Winter Precipitation Types .......................................................................................... 197 <br />Table 4-150. Ice Related Hazard ..................................................................................................... 198 <br />Table 4-151. NWS Winter Weather Advisories ................................................................................ 199 <br />Table 4-152. NWS Winter Storm Severity Index .............................................................................. 199 <br />Table 4-153. Sperry-Piltz Ice Accumulation Index ........................................................................... 200 <br />Table 4-154. Winter Weather Annualized Frequency (FEMA National Risk Index) .......................... 201 <br />Table 4-155. Ice Storm Annualized Frequency (FEMA National Risk Index).................................... 201 <br />Table 4-156. Ice Storm Events (1950 – 2023) ................................................................................. 201 <br />Table 4-157. Heavy Snow Events (1950 – 2023) ............................................................................. 202 <br />Table 4-158. Blizzard Events (1950 – 2023) .................................................................................... 206 <br />Table 4-159. Winter Storm Events (1950 – 2023) ............................................................................ 206 <br />Table 4-160. Winter Weather Events (1950 – 2023) ........................................................................ 207 <br />Table 4-161. Winter Weather Expected Annual Loss (FEMA National Risk Index) .......................... 209 <br />Table 4-162. Ice Storm Expected Annual Loss (FEMA National Risk Index) ................................... 209 <br />Table 4-163. Winter Weather Risk Index (FEMA National Risk Index) ............................................. 210 <br />Table 4-164. Ice Storm Risk Index (FEMA National Risk Index) ...................................................... 210 <br />Table 4-165. Winter Weather Total Risk Score ................................................................................ 210 <br />Table 4-166. Communicable Disease/Pandemic Events ................................................................. 212 <br />Table 4-167. Communicable Disease/Pandemic Total Risk Score .................................................. 216 <br />Table 5-1. Kittitas County Mitigation Goals and Objectives .......................................................... 217 <br />Table 5-2. Suitability of Mitigation Activities for the Highest Ranked Hazards .............................. 222 <br />Table 5-3. Kittitas County Mitigation Actions Summary ................................................................ 223 <br />Table 5-4. Mitigation Action Estimated Cost Parameters ............................................................. 224 <br />Table 5-5. Mitigation Action Benefits Parameters ........................................................................ 224 <br />Table 5-6. Mitigation Action Project Duration Parameters ............................................................ 224 <br />Table 5-7. STAPLEE+E Method .................................................................................................. 225 <br />Table 5-8. New Mitigation Action Implementation Priority Parameters ......................................... 227 <br />Table 6-1. Five-Year Action Plan ................................................................................................. 231 <br /> <br />LIST OF FIGURES <br />Figure 3-1. Map of Kittitas County ................................................................................................... 17 <br />Figure 3-2. USDA Soil Map of Kittitas County ................................................................................. 20 <br />Figure 3-3. Kittitas County Topographical Map ............................................................................... 22 <br />Figure 3-4. Kittitas County Land Use Designation Map ................................................................... 27 <br />Figure 3-5. Kittitas County Zoning and Future Land Use ................................................................. 28 <br />Figure 3-6. Kittitas County Population and Projected Growth (1980 – 2050) ................................... 30 <br />Figure 4-1. Areas Vulnerable to Avalanches ................................................................................... 71 <br />Figure 4-2. High Hazard Dams in Kittitas County ............................................................................ 83 <br />Figure 4-3. Cle Elum Dam Inundation Map ..................................................................................... 85 <br />Figure 4-4. Easton Dam Inundation Map ........................................................................................ 86 <br />Figure 4-5. Keechelus and Kachess Dam Inundation Areas ........................................................... 87 <br />Figure 4-6. Levees in Kittitas County .............................................................................................. 89 <br />Figure 4-7. Palmer Drought Severity Index Map (June 2024) ......................................................... 98 <br />Figure 4-8. Washington U.S. Drought Monitor (August 27, 2024) ................................................. 100 <br />Figure 4-9. U.S. Drought Monitor Time Series for Kittitas County ................................................. 101 <br />Figure 4-10. Fault Systems Located Within Kittitas County ............................................................. 108 <br />Figure 4-11. Earthquake History in Kittitas County Area ................................................................. 109 <br />Figure 4-12. National Earthquake Hazards Reduction Program Soil Type Map .............................. 111