NASA's TRMM spacecraft peers beneath the clouds of Hurricane Katrina to see the rainfall that powers the storm.
NASA's TRMM spacecraft observed this view of Hurricane Katrina on August 28, 2005. At the time the data was taken, the hurricane was a Category 5 hurricane, the most destructive and deadly. The cloud cover is taken by TRMM's Visible and Infrared Scanner (VIRS) and the GOES spacecraft. The rain structure is taken by TRMM's Tropical Microwave Imager (TMI). It looks underneath of the storm's clouds to reveal the underlying rain structure.
Hurricane Katrina on August 28, 2005. 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.