Close up of GPM Image of Harvey (IMAGE) NASA/Goddard Space Flight Center Caption NASA's IMERG rainfall analysis for Tropical Storm Harvey covers the period from Aug. 21 through Aug. 28, 2017. IMERG shows rainfall totals to 20 inches (purple shading) from the coast near Galveston Bay to in and around the Houston area. At least 10 inches (red shading) are shown to have fallen from western Louisiana all the way to near Corpus Christi on the coast. Credit Credits: NASA/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.