TRMM Flyby of Gillian (video) NASA/Goddard Space Flight Center Loading video... Caption On March 23 when the TRMM satellite passed over Gillian, it was at hurricane-force. TRMM revealed intense storms in a well-defined eye wall producing rain at a rate of over 100mm/3.9 inches per hour. Some of the tall storms on the southwestern side were as high as 14km/8.7 miles. Credit Image Credit: SSAI/NASA, Hal Pierce Usage Restrictions None 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.