 Several areas of convection persisted within the ITCZ in early March across the open Indian Ocean . One of these organized into a tropical storm on March 2 about 700 km ( 430 mi ) south of Diego Garcia and was given the name Daodo . On the following day , the JTWC began tracking it as Tropical Cyclone 21S . Daodo moved slowly initially while quickly strengthening into a severe tropical storm . On March 4 , a weak ridge steered the storm to the east , and the storm weakened slightly during this time . Three days later a stronger ridge to the east turned Daodo to the southwest , bringing it over its former path . On March 8 , the JTWC upgraded the storm to the equivalent of a minimal hurricane . On the following day , the MFR upgraded Daodo to tropical cyclone status , estimating peak 10 minute winds of 135 km / h ( 85 mph ) , although it weakened back into a tropical storm on March 10 . The storm accelerated to the southeast on the next day and maintained much of its intensity due to baroclinic interactions with a nearby anticyclone . On March 13 , Daodo turned back to the southwest before moving more southward and later to the southeast . On March 18 , the storm dissipated within a polar trough northwest of Île Amsterdam . 
