NASA's TRMM spacecraft is used by meteorologists to understand Hurricane Jeanne. TRMM saw this view of Hurricane Jeanne on September 25, 2004, just before it made landfall. The cloud cover is taken by TRMM's Visible and Infrared Scanner (VIRS). It looks underneath of the storm's clouds to reveal the underlying rain structure. Blue represents areas with at least 0.25 inches of rain per hour. Green shows at least 0.5 inches of rain per hour. Yellow is at least 1.0 inches of rain and red is at least 2.0 inches of rain per hour. Note: The source of power that feeds a hurricane is its rainfall. The TRMM spacecraft allows us to look beneath the clouds to see the structure of the rain. Data Collected: 9/25/04. Animator: Lori Perkins (NASA/GSFC). Scientist: Jeff Halverson (JCET UMBC). Platforms/Sensors/Data Sets: TRMM/PR, TRMM/TMI, TRMM/VIRS.