Aqua image of Cristina (IMAGE) NASA/Goddard Space Flight Center Caption On July 7 at 4:10 a.m. EDT (0810 UTC) the MODIS instrument that flies aboard NASA's Aqua satellite revealed two areas of very powerful thunderstorms (yellow) around Cristina's center where cloud top temperatures were as cold as minus 80 degrees Fahrenheit (minus 62.2 Celsius). Credit Credit: NASA/NRL 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.