As Tropical Storm Jose was forming in the Eastern Atlantic Ocean, NASA's Aqua satellite analyzed its cloud top temperatures.
The Atmospheric Infrared Sounder or AIRS instrument aboard NASA's Aqua satellite passed over Tropical Storm Jose as it was consolidating. AIRS analyzed the storm in infrared light providing scientists with temperature data and that's important when trying to understand how strong storms can be. The higher the cloud tops, the colder and the stronger they are. So infrared light as that gathered by the AIRS instrument can identify the strongest sides of a tropical cyclone.