TRMM Image of 91B (IMAGE) NASA/Goddard Space Flight Center Caption On May 6, the TRMM satellite saw that some rain in System 91B was falling at a rate of 66 mm (2.6 inches) per hour in the stormy area southwest of India The tallest thunderstorm towers over Sri Lanka were above 13 km (about 8 miles). Credit Image Credit: SSAI/NASA, 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.