GPM Flyby of Zena (video) NASA/Goddard Space Flight Center Share Print E-Mail Loading video... Caption On April 6 at 0933 UTC, GPM found Zena's most intense rainfall occurring at the amazing rate of almost 300 mm (11.8 inches) per hour. Some storm tops in these intense thunderstorms were reaching altitudes above 17 km (10.5 miles). Credit Credits: NASA/JAXA/SSAI, Hal Pierce Usage Restrictions None Share Print E-Mail 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.