GPM Image of Michael (IMAGE) NASA/Goddard Space Flight Center Caption The GPM core satellite measured rainfall within Post-Tropical Storm Michael on Oct. 12, 2018. GPM found the heaviest rainfall was north of Michael's center, falling at a rate of over 1.6 inches (40 mm) per hour (pink) just south of Long Island, New York. Credit NASA/JAXA/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.