Satellite Data on John (IMAGE) NASA/Goddard Space Flight Center Caption On Aug. 9, 2018 at 5:10 a.m. EDT (0910 UTC) NASA's Aqua satellite revealed cloud top temperatures in strongest storms were north of John's center of circulation. Those temperatures were as cold as or colder than minus 70 degrees (red) Fahrenheit (minus 56.6 degrees Celsius). 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.