It degenerated into a remnant low pressure area as it crossed the island, and briefly re-organized into a weak tropical depression before dissipating on 22 February.

In addition, severe flooding and high winds in Toamasina left the entire city without electricity or drinkable water.

[3] Around the same time, the Joint Typhoon Warning Center (JTWC) began issuing advisories on the system as Tropical Cyclone 18S.

A cutoff low to the south of the system enhanced upper-level conditions, and it quickly strengthened into Tropical Storm Ivan.

[6] Its intensification rate slowed as an upper-level trough began restricting outflow, and the motion of Ivan became nearly stationary as it entered an area of weak steering currents.

[7] With its overall environment remaining favourable, the JTWC upgraded Ivan to tropical cyclone status – winds greater than 119 km/h (74 mph) – early on 9 February.

[22] In Analanjirofo, the worst hit region on the mainland Madagascar, 80,000 people were left homeless, and most of the schools, houses and other structures were lost as a result of the flooding and high wind.

[22] Another major aspect of the damage there was the Antaratasy bridge, a connector between the region of Atsinanana and cities to the north, which was completely destroyed, isolating several people from their families.

[23] Its collapse, in addition to the extensive damage to communications, made it difficult or impossible to contact people who may have been affected by Ivan.

Twelve tonnes of material was provided from the main center on La Reunion Island, including tarpaulins, tool kits, generators, water tablets and other emergency supplies.