AIRS Image of 15S (IMAGE) NASA/Goddard Space Flight Center Caption This NASA infrared image of Tropical Cyclone 15S on April 6 at 0105 UTC (April 5 at 9:05 p.m. EST) showed strongest storms with cloud top temperatures of thunderstorms as cold (purple) as -63F/-53C. Credit Credits: NASA JPL, Ed Olsen Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.