Acknowledgements

Christopher D O'Connor shared a Python script to calculate tSDI and provided rulesets to update fuel models. Alex Masarie helped with data visualization. This research was partially funded by the Colorado Agriculture Experimental Station project COL0050 and by the 14-JV-11221636-029 project between the USDA Forest Service Rocky Mountain Research Station and Colorado State University. The National Fire Decision Support Center also supported this effort.

## Conflict of interest

The authors declare no conflict of interest.
