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<br /> <br /> <br />Community Wildfire Protection Plan 34 September 2018 <br />Simulations from FSim that cover the entire county were completed in 2018. This effort in FSim <br />modeling was undertaken by the USFS Pacific Northwest Research Station (PNRS) as part of a wildfire <br />risk assessment for the larger, Pacific Northwest Region (Oregon and Washington boundaries). <br />4.2.3 Combining Landscape Risk and Model Simulation <br />The combined utility of working at multiple scales of analysis is greater than that of either tool used <br />alone. The outputs from both modeling efforts are integrated and summarized here to provide an <br />overview picture of spatial variation in wildfire risk components in Kittitas County. The raw outputs <br />from modeling are raster, or pixel-based, datasets that divide the landscape into evenly-sized square <br />cells. For the FlamMap modeling, these cells were 30 meters (97 feet) on a side. The increased <br />complexity of FSim modeling required larger cells, each 180 meters (583 feet) on a side. <br />Summarizing results at a slightly coarser scale makes them more easily interpretable, and allows for <br />broad-scale patterns to emerge that may not be immediately visible in the pixel datasets. Therefore, <br />outputs of wildfire likelihood and intensity are summarized below using fine-scale watershed <br />polygons, referred to as catchments. There are 2,751 catchment polygons that intersect Kittitas <br />County, ranging in size from about 40 to 9,900 acres (average of 697 acres). We calculated the <br />average likelihood and intensity values for each catchment, as well as the integrated wildfire hazard, <br />which combines likelihood and intensity into a single index. <br /> Snag Canyon Wildfire, 2014; Kittitas County Conservation District