Hurricane Katrina Rainfall (IMAGE) NASA/Goddard Space Flight Center Caption Tropical Rainfall Measuring Mission and GOES satellite composite image of Hurricane Katrina on Sun., Aug. 28, 2005, at 5:30 PM EDT. Blue areas are at least 0.25 inches of rain/hr.; Green 0.5+ inch/hr; Yellow 1.0+ inch/hr.; Red 2.0+ inch/hr. Credit NASA TRMM 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.