The primary objective of this work is to assess the local, regional, and national risks to air quality and visibility from wildland fire. This will be done by generating and analyzing statistics of daily and nightly variability of surface wind, mixing height, and dispersion potential and by creating and analyzing mapped mean values of all variables on local, regional, and national scales (1km to 5km spatial resolution). A secondary objective is to make available maps and data layers to all users so they can assess potential dispersion as it relates more specifically to their management concerns and so the data can be linked with other data layers or models for more complete views of associated risks from wildiand fire.