NASA Infrared Image of System 97S (image) NASA/Goddard Space Flight Center Caption On Feb. 15 at 06:17 UTC (1:17 a.m. EST) AIRS instrument infrared data showed three areas of strong convection (purple) in System 97S. There are three areas of strong thunderstorms and convection (purple) where cloud top temperatures were so high in the atmosphere that they were as cold as or colder than -52 Celsius/-63 Fahrenheit. Credit NASA JPL, Ed Olsen Usage Restrictions None 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.