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CHAPTER 11. FLOOD <br />11-8 <br /> <br />Figure 11-2. Home in West Ellensburg Surrounded by Floodwaters, January 18, 2011 <br />11.2.5 Location <br />The major floods in Kittitas County have resulted from intense weather rainstorms between November and <br />March. The flooding that has occurred in portions of the county has been extensively documented by gage <br />records, high water marks, damage surveys and personal accounts. The current Kittitas County Flood <br />Insurance Rate Maps (FIRMs) became effective on October 15, 1981. Preliminary FIRMs for Kittitas <br />County were generated in early 2018, and these were used to map the extent and location of updated flood <br />hazards in this risk assessment, as shown in Figure 11-3. All jurisdictions in Kittitas County have buildings <br />exposed to the flood hazard area.