A pressing issue in fire management is understanding the immediate and longterm effects of fuel treatments on wildland fire behavior and severity. Intensive fuels data were collected as part of the pre- assessment for the Fire and Fire Surrogate Treatments Study at the Mission Creek site in the Wenatchee Mountains of Washington State. These data are summarized and a subset used to model treatment effects (intermediate thin, prescribed fire, and combination) on forest fuel profiles and loadings using the Forest Vegetation Simulator and Fire and Fuels Extension model (FVS-FFE). FVS-FFE is used to model the potential short and long-term effect of fuel treatments on wildland fire behavior and severity under 80 and 90+ percentile fire weather conditions.