At what thresholds do old burn scars become available to burn again? Exploring the idea that satellite heat detects can be correlated to the Fire Weather Indices and large fire perimeters. Of 54,673 VIIRS heat detects in 2015, 11% were in areas burned between 1975 and 2014. What kind of information can we glean from these points? I'll show you the work I did to join some spatial datasets and a few preliminary graphs.