 In January and February 1984 , conditions were favorable for tropical cyclogenesis in the southwest Indian Ocean , including warmer than normal sea surface temperatures and an active monsoon trough . On January 16 , a spiral area of convection persisted off the northeast coast of Madagascar , associated with the <unk> convergence zone . That day , it organized enough to warrant a satellite @-@ based Dvorak rating of <unk> , prompting the Réunion Meteorological Service to name it Domoina . Around that time , <unk> @-@ France ( MFR ) estimated winds of about 65 km / h ( 40 mph ) . Domoina initially tracked to the west @-@ northwest , passing near <unk> Island on January 18 . Around that time , the storm had begun moving to the southwest , and MFR estimated that it weakened to tropical depression status . On January 19 , the Joint Typhoon Warning Center ( JTWC ) began warning on Domoina , designating it Tropical Cyclone <unk> . The same day , MFR again upgraded Domoina into a moderate tropical storm . On January 21 , the storm made landfall just south of <unk> in southeastern Madagascar . 
