Here, we discuss progress on a planning and decision support system designed to mine historical weather records to provide this understanding in a way that is tailorable to a specific location and manager’s needs. At the time of abstract submission, this tool offers climatological burn window evaluations based on specification of bounds for any number of presently supported fire-behavior (e.g., near surface wind speed, relative humidity, temperature, and equilibrium moisture content) and smoke management-related (e.g., transport wind speed and direction, mixing height, ventilation index) environmental conditions, which have been extracted from an 11 year archive of hourly, 4km-horizontal resolution, operational forecasts from the University of Washington's Weather Research and Forecasting (WRF) model covering the northwestern US, and 30 years of hourly, 25km-horizontal resolution data from the ERA5 reanalysis over the conterminous US. The intent of this tool is to help facilitate prescribed burning nationwide.

