The timeline orders the fires by age.
The grid view orders fires by their physical footprint.
Zooming in to a fire shows its perimeter.
Visit the app here.
The source data is the GeoMAC wildfires feed, which itself is a cooperative effort to disseminate daily current wildfire conditions accrued from satellite sensors, eyewitnesses, and all manner of GIS data collection. It is a collaboration between what seems like almost every federal agency.
This is a work in progress and will continue to be updated.