The TRMM satellite had another very good view of subtropical cyclone ARANI in the morning light on 16 March 2011 at 1052 UTC. This orbit showed that there were very heavy thunderstorms in the eastern half of the storm. TRMM's Precipitation Radar (PR) showed that some of these powerful storms were reaching to heights of over 14 km (~8.7 miles) above the surface of the south Atlantic Ocean.

During the daytime on Tuesday 15 March 2011 at 1820 UTC the TRMM satellite flew over a rare cyclone labeled ARANI in the south Atlantic Ocean. ARANI has the appearance of a tropical cyclone but has been classified as a subtropical cyclone. NOAA's Satellite and Information Service classified ARANI as a T1 on the Dvorak intensity scale which would indicate an estimated wind speed of about 29 kts (~33 mph). TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) data were used in the image on the right to show rainfall near ARANI. Tropical cyclones are very rare in the south Atlantic Ocean. In

Although the heaviest rainfall over the past week was in the southern United States, flooding was reported in states from Louisiana to northern New York. The rainfall analysis above was made by merging precipitation data from multiple satellites. This Multisatellite Precipitation Analysis (TMPA) analysis used data products that were calibrated with TRMM precipitation data. These data products are calculated and stored at Goddard Space Flight center and are available within a few hours after being received by satellites. This analysis indicates that the greatest total rainfall for the past week

The TRMM satellite flew over tornadic thunderstorms for the second time in less than a week on 9 March 2011 at 1208 UTC ( 6:08 AM CST). By 1652Z (10:52 AM CST) NOAA had received 9 tornado sighting over Louisiana, Alabama and Florida. A precipitation analysis from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) (in the lighter swath) again showed extremely heavy rainfall near tornadic activity. TRMM's Precipitation Radar (PR) data were used in the image on the upper right to show a 3-D slice through a possible tornado.

The TRMM satellite was flying high over head when it passed above tornadoes occurring in the state of Louisiana on 5 March 2011 at 1411 UTC (8:11 AM CST). The National Oceanic and Atmospheric Administration (NOAA) reported that seven tornadoes were spotted in Louisiana on that date. These tornadoes caused at least 15 injuries and one death with a tornado that hit in the northwest section of Rayne, Louisiana. The image on the left above shows a precipitation analysis using data collected with that TRMM orbit. TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) (in the lighter swath)