Code for Projected Canadian Forest Fire Danger Rating System (CFFDRS) metrics within Fire Danger Rating Areas in Alaska (1980–2099) (version 1.0.0)

Effective future fire planning and decision-making in Alaska requires accessible, interpretable, and locally relevant climate data to anticipate fire danger. To meet this need, we utilized an existing dataset of projected fire danger metrics from the Canadian Forest Fire Danger Rating System (Young et al. 2025). This dataset contains daily projections from 1980 through 2099 for key metrics including Buildup Index, Drought Code, Duff Moisture Code, Fine Fuel Moisture Code, Fire Weather Index, and Initial Spread Index. These projections were generated using historical data and outputs from four climate models, all downscaled to a 0.25-degree resolution. We developed Python and R code to process and visualize the data, producing summary tables, time series plots, and maps. Outputs primarily focused on 16 Fire Danger Rating Areas in Alaska, which correspond to the boreal forest extent covered by the input dataset. The code provides a transparent and reproducible methodology, enabling the generation of customized products that deliver actionable fire danger insights to support fire planning and management under future climate scenarios.