This animation shows a simulated 3-D analysis of NASA's Tropical Rainfall Measuring Mission (TRMM) satellite's multisatellite Precipitation Analysis (TMPA). It shows rainfall that occurred with tropical cyclone Mahasen during the period from May 6-16, 2013 as tropical cyclone Mahasen was making it's deadly transit through the Bay Of Bengal. Rainfall from Mahasen is only adding to flooding rainfall that had already occurred in the area. TRMM's Precipitation Radar (PR) found rain within Mahasen falling at a rain of over 67mm/hr (~2.6 inches) on May 15 and at a rate of over 57mm/hr (~2.25 inches) on May 16. Rainfall totals of about 544mm (~21.4 inches) were found with this analysis over Bangladesh and north-east India.