 The 1988 – 89 South @-@ West Indian Ocean cyclone season was an active season that featured several storms moving near or over the Mascarene Islands or Madagascar . The eleven tropical storms was two greater than average , of which five became tropical cyclones – a storm with maximum sustained winds over 10 minutes of 120 km / h ( 75 mph ) or greater . Storms were monitored by the Météo @-@ France office ( MFR ) on Réunion island in an official capacity , as well as the American Joint Typhoon Warning Center ( JTWC ) on an unofficial base . The season began early with Moderate Tropical Storm Adelinina forming in early November , and continued through the middle of April . Adelinina was one of two storms to form in November , the other being Tropical Cyclone Barisaona which crossed from the adjacent Australian basin . 
