Tropical Cyclone GAMANE-24
Location
Madagascar
Date
2024-03-25
to 2024-03-28
Coordinates
Lat:
-13.83
Lon:
48.09
Danger Scale
Disaster Details
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
| Wind | Storm surge | Rainfall | GDACS score | |
| WMO-RSMC La Réunion | 169 km/h | 0.6 m | n.a. | 1.5 |
| GDACS JTWC | 167 km/h | 0.4 m | n.a. | 1.5 | 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 |
- 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.
A new EC/ECHO daily map is now available
- 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.
- 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.
UNITAR-UNOSAT Potentially Damaged Buildings has been activated
- 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.
UNITAR-UNOSAT Potentially Damaged Buildings has been activated
A new EC/ECHO daily map is now available
UNITAR-UNOSAT Potentially Damaged Buildings has been activated
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)
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),
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