GPM Image of Ignacio (IMAGE) NASA/Goddard Space Flight Center Caption On Aug. 25, GPM found rain falling at a rate of over 74 mm (2.9 inches) per hour with storm tops reaching to altitudes of close to 15 km (8.7 miles). Credit NASA/SSAI/JAXA, Hal Pierce 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.