Overall Orange alert Tropical Cyclone for HIDAYA-24
in Tanzania, Seychelles, Comoros

Event summary

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

GDACS ID TC 1001060
Name HIDAYA-24
From - To 01 May - 04 May
Exposed countries Tanzania, Seychelles, Comoros
Exposed population 640 thousand in Category 1 or higher
Maximum wind speed 148 km/h Category 1
Maximum storm surge 0.5 m (04 May 11:00 UTC)
Vulnerability High (Comoros)


For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
WMO-RSMC La Réunion 63 km/h 0.5 m n.a. 0.5
GDACS JTWC 74 km/h n.a. n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF 176 km/h 0.5 m 1108 mm 0.5
GFS 180 km/h 0.3 m 638 mm 0.5
ECMWF 68 km/h 0.3 m 789 mm 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Tanzania - Tropical cyclone (ECHO 03 May 2024)Fri, 03 May 2024 10:45

  • A new tropical storm named 'Hidaya' formed on 1 May over the central Indian Ocean, north of Madagascar, Comoros and Mayotte (France), and started moving west toward eastern Tanzania. On 3 May at 0.00 UTC its centre was located offshore, approximately 500 km south-east of the area of Dar es Salaam city (the main city of Tanzania), with maximum sustained winds of 137 km/h (tropical cyclone).
  • On the forecast track, Hidaya is expected to continue moving northwestward over the ocean and continue strenghtening, passing by very close (without making the landfall) to the area of Dar es Salaam city between 4 May in the afternoon and 5 May very early in the morning (UTC), with maximum sustained winds of up to 75 km/h (tropical storm).
  • Very heavy rainfall, strong winds and storm surge are forecasted over eastern Tanzania for the period from 4 to 7 May.
HIDAYA-24 - EC/ECHO daily mapTue, 07 May 2024 17:49

A new EC/ECHO daily map is now available
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: 452 | About casualties: 80 | Last hour: 1

Kenya: All Schools to Be Re-Opened On Monday2024-05-08T11:45+0200.

Kakuma refugee camp - UNHCR is coordinating with a range of partners to support refugee families impacted by flooding. Core relief items were distributed today and we continue to monitor the situation to ensure refugees are safe. Nairobi P
May 4, 20242024-05-08T08:20+0200.

Dar es Salaam, May 4: Tanzania was on high alert Saturday as Cyclone Hidaya moved closer to the coast, bringing with it strong rains, heavy winds as the threat of storm surges amid the power outages. The cyclone, which is moving across the
Tanzania closes major highway after floods wash away bridges2024-05-08T06:18+0200.

Tanzania’s 396-kilometre highway connecting the port city of Dar es Salaam and southern regions of Lindi and Mtwara was shut down on Sunday after flash floods washed away at least four main bridges. “The highway has been closed until furthe
Tanzania, Africa | Floods and landslides 2023 - Revised Emergency Appe ... 2024-05-08T04:05+0200.

SITUATION OVERVIEW. Since November 2023, Tanzania has been experiencing heavy rains caused by an intense El Niño and Indian Ocean dipole system. The resulting floods and landslides have claimed many lives and destroyed thousands of homes. O

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), INFORM (2),