GPM Image of Barbara (IMAGE) NASA/Goddard Space Flight Center Caption The GPM core satellite passed over Tropical Storm Barbara at 3:31 a.m. EDT (0731 UTC) on July 1, 2019. GPM found the heaviest rainfall rate (pink) was northeast of the center of circulation. There, rain was falling at a rate of 41 mm (about 1.6 inches) per hour. 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.