US (Conterminous and Hawaii) Fire data (375m resolution) via NASA/NOAA VIIRS (Suomi polar orbit) and MODIS (1km resolution), along with active fire boundaries from the USGS.
Right now this is a manual update as the data has to be converted to GeoJSON. @scuerda was kind enough to set up a geolambda on AWS that converts the shapefile to GeoJSON every hour!
Note that VIIRS satellite passes are every ~12 hours (typically 1-3 AM & 1-3 PM for California), data usually available within 3 hours of that. MODIS data comes from two satellite, Aqua and Terra. Terra (EOS AM) passes over the equator at approximately 10:30 am and 10:30 pm each day, Aqua (EOS PM) satellite passes over the equator at approximately 1:30 pm and 1:30 am.
https://earthdata.nasa.gov/earth-observation-data/near-real-time/firms/active-fire-data
This displays the 7 day file for the contiguous US -- you could easily load other areas of the world or the global files, see below.
Fire names are from GeoMAC/USGS:
https://rmgsc.cr.usgs.gov/outgoing/GeoMAC/current_year_fire_data/current_year_all_states/
scene file:
https://mapzen.com/tangram/play/?api=22/1141#11.5535/38.3784/-122.5101
Colors are divided into 12 hour steps. White dots are the latest data, yellow 12 hours before that, orange the day before, red 12 hours before that -- the darker the color, the older the data, using the Viridian palette.
The date can be locked down as a global on line. Primary source is defined on line 133, in the viirs_7d: url.