Overall Orange alert Tropical Cyclone for GAMANE-24
in Madagascar

Event summary

Tropical Cyclone GAMANE-24 can have a medium humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID TC 1001057
Name GAMANE-24
From - To 25 Mar - 28 Mar
Exposed countries Madagascar
Exposed population 560 thousand in Category 1 or higher
Maximum wind speed 169 km/h Category 2
Maximum storm surge 0.6 m (28 Mar 01:00 UTC)
Vulnerability High (Madagascar)

GDACS Score

For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
WMO-RSMC La Réunion 95 km/h 0.6 m n.a. 0.5
GDACS JTWC 46 km/h 0.4 m n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF 180 km/h 0.8 m 1746 mm 0.5
GFS 194 km/h 0.9 m 1429 mm 0.5
ECMWF 65 km/h 1 m 1130 mm 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Madagascar - Tropical cyclone GAMANE (ECHO 26 Mar 2024)Tue, 26 Mar 2024 09:53

  • A new tropical storm named GAMANE formed over the southern Indian Ocean, north-east of the far northern Madagascar, on the afternoon, UTC of 25 March  and started moving southwestward as a tropical storm, strenghtening. On 26 March at 6.00 UTC its centre was located offshore approximately 145 km north-east of Vohemar City, Sava Region, north-eastern Madagascar, with maximum sustained winds of 108 km/h (tropical storm).
  • GAMANE is expected to continue southward over the Ocean along the coast of north-eastern Madagascar - without making the landfall- on 27-28 March, strenghtening, with maximum sustained winds up to 190 km/h (tropical cyclone). After that, on 29-31 March it is forecast to continue southeastward over the Ocean, weakening into a tropical storm on 31 March.
  • Over the next 72 hours, heavy rainfall, strong winds and storm surge are forecast over northern and central-eastern Madagascar. Moderate rainfall is also forecast over Reunion and Mauritius starting from 29 March.
GAMANE-24 - EC/ECHO daily mapTue, 26 Mar 2024 18:02

A new EC/ECHO daily map is now available
Madagascar - Tropical cyclone GAMANE, update (ECHO 27 Mar 2024)Wed, 27 Mar 2024 09:21

  • Tropical cyclone GAMANE made landfall at 2.45 UTC in Ampisikina Municipality, Vohemar District, Sava Region, north-eastern Madagascar. On 27 March at 3.00 UTC, its centre was located inland in the Sava Region with maximum sustained winds of 150 km/h (tropical storm).
  • GAMANE is forecast to move west-southwest and turn southeastwards inland on 27-28 March crossing most of Sava, parts of Sofia and northern Analanjirofo Regions. After that, GAMANE will move southeast over the Indian Ocean, weakening and dissipating since 29 March.
  • For the next 24 hours, heavy rainfall, strong winds and storm surge are forecast over most of northern, north-eastern and parts of central-eastern Madagascar. Red warnings for cyclone are in effect over Diana and Sava Regions while yellow warnings have been issued for Ambatosoa and Analanjirofo.
Madagascar - Tropical cyclone GAMANE, update (ECHO 28 Mar 2024)Thu, 28 Mar 2024 11:15

  • Tropical cyclone GAMANE is crossing northern Madagascar weakening, and on 28 March at 0.00 (UTC), its centre was located inland over the Andapa District area, Sava Region with maximum sustained winds of 45 km/h (tropical depression).
  • According to media reports, heavy rainfall and floods have affected the Regions of Sava, Diana Sofia, Analanjirofo, Alaotra Mangoro and Atsinanana and resulted in six fatalities (one in Mananara North, three in Maroantsetra, one in Toamasina and another in Vavatenina), one still missing person and more than 2,600 affected people. 
  • GAMANE is forecast to move southeast still inland and go towards the sea, south of Masoala Peninsula on 28 March in the evening. 
  • For the next 24 hours, moderate to very heavy rainfall and strong winds are still forecast over northern, north-eastern and central-eastern Madagascar. A blue warning for post-cyclone is in effect for the Regions of Diana, Sava, Ambatosoa and Analanjirofo.
GAMANE-24 - UNITAR-UNOSAT ActivationWed, 03 Apr 2024 07:59

UNITAR-UNOSAT Potentially Damaged Buildings has been activated
Madagascar - Tropical cyclone GAMANE, update (ECHO 03 Apr 2024)Wed, 03 Apr 2024 10:25

  • Very heavy rainfall, associated to the passage of the tropical cyclone GAMANE, affected north-eastern and central-eastern Madagascar on 26-29 March, causing several severe weather related incidents that have resulted in casualties and widespread damage. The most affected regions are Analanjirofo (the most affected), Atsinanana, Diana and Sava.
  • The National Office for Risk and Disaster Management (BNGRC) reports, as of 1 April, 18 fatalities, four people still missing, 3 injured people, more than 24,000 displaced people (of which a number of these in 87 shelters) and a total of nearly 88,200 affected people across the four aforementioned affected Regions. In addition, BNGRC also reports over 19,500 damaged houses and 135 damaged schools.
  • Over the next 72 hours, more heavy rainfall is forecast over eastern and northern Madagascar.
GAMANE-24 - UNITAR-UNOSAT ActivationThu, 04 Apr 2024 15:28

UNITAR-UNOSAT Potentially Damaged Buildings has been activated
GAMANE-24 - EC/ECHO daily mapFri, 05 Apr 2024 16:52

A new EC/ECHO daily map is now available
GAMANE-24 - UNITAR-UNOSAT ActivationFri, 05 Apr 2024 14:56

UNITAR-UNOSAT Potentially Damaged Buildings has been activated
Detailed event map. European Union, 2024. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Madagascar: Diana - Infrastructures routières dévastées par les crues 3/31/2024 2:18:00 PM.

Depuis dimanche dernier, la région septentrionale de l'île est victime de fortes pluies. Malgré la baisse en intensité du cyclone Gamane, les pluies qui l'accompagnent ont causé des dégâts. Mis à part les maisons, les écoles et d'autres bât
...(more)
Madagascar: Commémoration de 29 Mars 1947 - Respect à toutes les lutte.. 3/31/2024 2:18:00 PM.

Soixante-dix-sept ans après l'insurrection de 1947, l'esprit de patriotisme reste toujours intact. Afin de perpétuer cet esprit, Andry Rajoelina transmet le feu du patriotisme aux jeunes. Le patriotisme, moteur du développement. Tel était l
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Madagascar Cyclone Gamane Kills at Least 18, Displaces Thousands, Gove.. 3/31/2024 6:14:00 AM.

ANTANANARIVO -A tropical cyclone that swept across the island of Madagascar this week killed at least 18 people and displaced thousands more, the country’s disaster management office said on Friday. Tropical cyclone Gamane, which crossed th
...(more)
Madagascar cyclone 'Gamane' kills at least 18, displaces thousands 3/30/2024 7:33:00 PM.

A tropical cyclone that swept across the island of Madagascar this week killed at least 18 people and displaced thousands more, the country's disaster management office said on Friday. Tropical cyclone Gamane, which crossed the northeast of
...(more)

Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (40), (2), WMO (1), INFORM (2),