Cyclone Gamane Leaves 18 Dead as Madagascar Faces Major Emergency in 2024
Cyclone Gamane struck northern Madagascar in late March 2024, triggering a national emergency response after floods, destructive winds, and widespread infrastructure damage killed at least 18 people. The southwest Indian Ocean cyclone intensified before making landfall near the island’s northern districts with winds capable of producing severe structural damage and extreme rainfall. Madagascar’s disaster authorities reported around 535,000 people affected, with thousands displaced as floodwaters isolated communities and damaged transport links. The storm weakened after crossing Madagascar, while recovery operations continued under the coordination of national agencies and humanitarian partners.
From Disturbance to Cyclone: The Path That Led Gamane to Madagascar
Cyclone Gamane developed within the southwest Indian Ocean basin during the final week of March 2024, under the monitoring responsibility of the Regional Specialized Meteorological Centre at La Réunion operated by Météo-France. The system entered the operational watch period as a tropical disturbance before being classified as a “Disturbed Zone” on March 25, when convection and circulation organization increased east of Madagascar.
The early evolution of Gamane was closely monitored by RSMC La Réunion and Madagascar’s national weather service, Météo Madagascar, as the system moved toward the western Indian Ocean island chain. Forecast bulletins highlighted strengthening convection, improving circulation, and a growing threat to northern Madagascar. Authorities began issuing weather warnings, including yellow and red alert phases, as the cyclone’s track moved closer to populated areas.
By March 26, Gamane underwent explosive intensification over warm waters. RSMC La Réunion upgraded the system as its circulation rapidly strengthened, with satellite observations showing a better-defined core and increasing convective organization. The cyclone reached severe tropical cyclone intensity before approaching Madagascar, becoming a major threat to communities in the north of the island.
The cyclone reached its peak intensity around March 27, with international best-track records indicating maximum sustained winds near 165 km/h and a minimum central pressure around 970 hPa. The storm’s strongest phase occurred shortly before landfall, when its compact circulation brought destructive winds and intense rainfall to northern Madagascar.
Gamane’s rapid strengthening left a narrow window for preparations in some areas. Météo Madagascar continued issuing warnings as the cyclone approached, while the National Office of Risk and Disaster Management, known as BNGRC, coordinated emergency planning and response measures with regional authorities.
Gamane’s Landfall Unleashes Floods, Bridge Collapses, and Mass Displacement
Cyclone Gamane made landfall in northern Madagascar on March 27, 2024, bringing torrential rain, damaging winds, and widespread flooding across several regions. The Sava and Diana regions experienced some of the most severe effects, with communities facing flooded homes, damaged roads, destroyed bridges, and interruptions to essential services.
The combination of heavy rainfall and already vulnerable infrastructure turned Gamane’s rainfall into a humanitarian crisis. Floodwaters cut off transport routes, leaving some communities temporarily isolated and delaying access for emergency teams. Agricultural areas were also heavily affected, damaging crops and threatening local livelihoods.
According to humanitarian assessments coordinated through the United Nations system, approximately 535,000 people were affected by Cyclone Gamane. The disaster resulted in at least 18 deaths, three injuries, and four people reported missing during the immediate response period. The figures reflected the scale of flooding and the difficulty of reaching remote communities after infrastructure failures.
BNGRC led national disaster response efforts, working with government agencies and humanitarian organizations to assess damage, support evacuations, and distribute emergency assistance. Rescue operations focused on communities affected by rising waters, damaged housing, and disrupted public services.
The cyclone also placed pressure on schools, health facilities, and local administrative structures. Many residents required temporary shelter after homes were damaged or destroyed. Relief operations included the delivery of essential supplies and support for families recovering from the impact of the storm.
International humanitarian agencies assisted Madagascar’s response, but the recovery process remained dependent on restoring damaged infrastructure and reconnecting isolated communities. The flooding caused by Gamane demonstrated how rapidly a short-lived but intense tropical cyclone can create a large-scale emergency when it crosses densely populated and vulnerable regions.
Category 2 at Its Apex: Gamane’s Rapid Rise and Slow Demise
Cyclone Gamane reached its strongest stage near northern Madagascar on March 27, 2024, when it attained Category 2 equivalent intensity in international tropical cyclone classifications. The system’s maximum winds were recorded near 165 km/h, with a minimum pressure close to 970 hPa during its peak phase.
After crossing Madagascar, Gamane weakened quickly as land interaction disrupted the cyclone’s circulation. The system lost much of its organized structure, and rainfall gradually became the primary remaining hazard as wind speeds declined.
RSMC La Réunion continued monitoring the weakening cyclone as it moved away from Madagascar over the southwest Indian Ocean. By March 28 and March 29, Gamane had weakened into a depression system, with decreasing convection and a deteriorating circulation pattern.
Best-track analyses place the active cyclone phase in the final days of March, with the system no longer maintaining tropical cyclone characteristics around the end of the month. The storm’s most significant period lasted from its Disturbed Zone classification on March 25 through its weakening after landfall, producing a short but highly destructive lifecycle.
The storm’s 970 hPa central pressure and 165 km/h peak winds marked Cyclone Gamane as one of the season’s most intense systems to strike Madagascar.