Overall Red alert Tropical Cyclone for HAMOON-23
in Bangladesh, India, Myanmar

Event summary

Tropical Cyclone HAMOON-23 can have a high humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID TC 1001029
Name HAMOON-23
Glide number: TC-2023-000208-BGD
From - To 23 Oct - 24 Oct
Exposed countries Bangladesh, India, Myanmar
Exposed population 3.9 million in Category 1 or higher
Maximum wind speed 148 km/h Category 1
Maximum storm surge 0.8 m (24 Oct 17:00 UTC)
Vulnerability High (Bangladesh)

GDACS Score

For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
GDACS JTWC 139 km/h 0.8 m n.a. 2.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF n.a n.a. n.a. n.a.
GFS 148 km/h 0.6 m 411 mm 0.5
ECMWF 104 km/h 0.5 m 245 mm 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
India, Bangladesh, Myanmar - Tropical cyclone HAMOON (ECHO 24 Oct 2023)Tue, 24 Oct 2023 11:21

  • A new tropical cyclone named HAMOON formed in the Bay of Bengal is moving northeastwards. On 24 October at 0.00 UTC, its centre was located over the Sea, 240 km south-southeast of Digha (West Bengal), 280 km south-southwest of Khepupara (Bangladesh) and 410 km southwest of Chittagong (Bangladesh), with maximum sustained winds of 130 km/h.
  • HAMOON is forecast to continue moving northeast and it could make landfall over the coast of Bangladesh between Khepupara and Chittagong on 25 October in the late morning as a tropical storm.
  • For the next 48 hours, very heavy rainfall and strong winds are forecast over north-eastern India, south-eastern Bangladesh and western Myanmar. 
Bangladesh - Tropical cyclone HAMOON in South-eastern Region, update (ECHO 25 Oct 2023)Wed, 25 Oct 2023 11:12

  • Tropical cyclone HAMOON made landfall over the southeastern coast of Bangladesh on the night of 24-25 October as tropical storm. On 25 October at 0.00 UTC, its centre was located about 40 km east-southeast of Chittagong City, with maximum sustained winds of 110 km/h.
  • According to media, as of 25 October, three fatalities and at least six injured people have been reported in Cox's Bazar City, with 1.5 million people impacted. Nearly 273,000 people have been evacuated.
  • Cox’s Bazar District is experiencing serious communication disruption, preventing access to real-time information, particularly in rural areas and refugees’ camps. In refugees’ camps and adjacent host communities, Disaster Management Committees and Cyclone Preparedness Programme have been activated.
  • Contingency stocks have been made available, volunteer first responders are on standby, preparedness messages have been disseminated. In collaboration with local authorities, some relocations inside camps have taken place and landslides incidents have already been reported.
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

Articles: 436 | About casualties: 35 | Last hour: 0

Bangladesh: Cyclone Hamoon ravages Cox’s Bazar as a severe cyclonic st ... 2023-10-27T20:10+0200.

Cox's Bazar, October 27, 2023 — A severe cyclonic storm named 'Hamoon' made a fierce landfall at Cox's Bazar, Bangladesh , on October 24, 2023, leaving a trail of destruction in the district and impacting the lives of over 470,000 people, i
...(more)
Bangladesh: Cyclone Hamoon ravages Cox’s Bazar as a severe cyclonic st ... 2023-10-27T20:01+0200.

Cox's Bazar, Bangladesh, October 27, 2023 --- A severe cyclonic storm named 'Hamoon' made a fierce landfall at Cox's Bazar, Bangladesh , on October 24, 2023, leaving a trail of destruction in the district and impacting the lives of over 470
...(more)
Bangladesh: Cyclone Hamoon ravages Cox’s Bazar as a severe cyclonic st ... 2023-10-27T12:11+0200.

Cox's Bazar, Bangladesh, October 27, 2023 — A severe cyclonic storm named 'Hamoon' made a fierce landfall at Cox's Bazar, Bangladesh , on October 24, 2023, leaving a trail of destruction in the district and impacting the lives of over 470,0
...(more)
Monsoon to pick up, but heavy spells only after a week2023-10-27T05:07+0200.

Chennai: With cyclone Hamoon weakening over the Bay of Bengal, the northeast monsoon may get active over the city and many parts of the state. IMD has forecast light to moderate rainfall for at least the next two days. Private forecasters a
...(more)

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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),