Aqua Image of John (IMAGE) NASA/Goddard Space Flight Center Caption On Aug. 6 at 4:40 a.m. EDT (0840 UTC) NASA's Aqua satellite found coldest temperatures of strongest thunderstorms (yellow) in Tropical Storm John were as cold as or colder than minus 80 degrees Fahrenheit (minus 62.2 Celsius). Credit NRL/NASA 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.