Wildfires have been plaguing the southwestern United States with hot, dry weather, high winds and lightning strikes. The interesting point to note in this image is the “modis hot spot” highlighted area. This is a spot on the ground that the MODIS instrument aboard both the Aqua and Terra satellites has recognized as having temperatures higher than the background. When accompanied by plumes of smoke, as in this image, such hot spots are diagnostic for fire. This tool is essential in helping firefighters pinpoint and target wildfires, especially in remote areas where they may not have even been reported. The earlier they can begin to fight the fire, the more quickly the fire can be contained and extinguished.