Overall Orange Tropical Cyclone alert for HIDAYA-24 in Tanzania, Seychelles, Comoros from 01 May 2024 00:00 UTC to 04 May 2024 12:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Orange alert Tropical Cyclone for HIDAYA-24

in Tanzania, Seychelles, Comoros

04 May 2024 12 UTC

click on

to select bulletin time

Meteorological source:

WMO-RSMC La Réunion
Primary source
GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

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

Meteorological source	GDACS
Exposed countries	Tanzania, Seychelles
Exposed population	No people in Category 1 or higher
Maximum wind speed	139 km/h
Maximum storm surge	0.6 m (04 May 08:00 UTC)
Vulnerability	Medium (Comoros)
Landfall	between 04 May 2024 00:00 - 04 May 2024 12:00 in Tanzania

GDACS Score

GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.

	Wind	Storm surge	Rainfall	GDACS score
Current	74 km/h	0.3 m	n.a.	0.5
Overall	139 km/h	0.6 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

TOP

Wind

74 km/h Current Max.

Up to 10.2 million people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
1	01 May 2024 12:00	93	10.7 million	No people	Seychelles, Tanzania
2	02 May 2024 00:00	93	210 thousand	No people	Seychelles, Tanzania
3	02 May 2024 12:00	120	10.6 million	No people	Seychelles, Tanzania
4	03 May 2024 00:00	167	10 million	10 thousand	Seychelles, Tanzania
5	03 May 2024 12:00	139	11.4 million	40 thousand	Tanzania, Seychelles
6	04 May 2024 00:00	102	10.3 million	No people	Tanzania, Seychelles
7	04 May 2024 12:00	74	10.2 million	No people	Tanzania, Seychelles

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)	Countries
1	01 May 2024 12:00	Tropical storm	65	no people	no people	-8.6, 45.1
2	02 May 2024 00:00	Tropical storm	65	no people	<1000 people	-9.1, 44.6
3	02 May 2024 12:00	Tropical storm	93	no people	<1000 people	-8.7, 44.1
4	03 May 2024 00:00	Category 1	139	no people	no people	-8.8, 43.3
5	03 May 2024 12:00	Category 1	139	no people	4.3 million people	-8.2, 42
6	04 May 2024 00:00	Tropical storm	102	no people	8.1 million people	-7.9, 40.8
7	04 May 2024 12:00	Tropical storm	74	no people	10.1 million people	-7.7, 38.6	Tanzania
7	05 May 2024 00:00	Tropical depression	56	no people	no people	-6.9, 37.8	Tanzania

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

Download:

Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country	Population in Tropical Storm or higher strength
Tanzania	10.1 million people
Seychelles	<1000 people

Provinces

Region Province	Country	Population in Tropical Storm or higher strength
Pwani	Tanzania	2 million people
Morogoro	Tanzania	1.5 million people
Lindi	Tanzania	150000 people
Dar es Salaam	Tanzania	6.3 million people
Zanzibar Central/South	Tanzania	23000 people
Seychelles	Seychelles	<1000 people

Populated places

Name	Region Province	Country	City class	Population
Dar es Salaam	Dar-es-Salaam	Tanzania	Major city	2.7 million people
Morogoro	Morogoro	Tanzania	City	250000 people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)
Dar Es Salaam	DAR	55	Civ.	Paved	Yes	9800
Ngerengere		226				0
Mafia	MFA	18	Civ.	Unpaved	No	5200
Morogoro		532	Civ.	Unpaved	No	3500
Kikoboga		549				0
Kilosa		488				0
Assumption Island		3	Civ.	Paved	No	3900

Ports

Name	LOCODE	Country
Kisiju		Tanzania
Dar-es-Salaam	TZDAR	Tanzania
Mjimwema Terminal		Tanzania
Kilondoni		Tanzania
Kilwa Kivinje	TZKIK	Tanzania
Kilwa Masoko	TZKIM	Tanzania
Assumption Island		Seychelles

TOP

Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

...

TOP

StormSurge

0.6 m

The maximum Storm surge height is 0.6m in Msindaji, Tanzania. This height is estimated for 04 May 2024 08:00 UTC .

The JRC has developed an experimental global storm surge model. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

Locations affected by Storm surge (68 locations). Calculation based on advisory number 7 of 04 May 2024 12:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	04 May 2024 08:00	Msindaji	Tanzania	0.6
	04 May 2024 08:00	Mchungu	Tanzania	0.6
	04 May 2024 08:00	Nyambati	Tanzania	0.6
	04 May 2024 08:00	Kiombani	Tanzania	0.6
	04 May 2024 08:00	Kiechuru	Tanzania	0.4
	04 May 2024 09:00	Somanga	Tanzania	0.4
	04 May 2024 08:00	Jaja	Tanzania	0.4
	04 May 2024 08:00	Mbwera	Tanzania	0.4
	04 May 2024 07:00	Mkarangama	Tanzania	0.4
	04 May 2024 09:00	Magawa	Tanzania	0.3
	04 May 2024 08:00	Kilindoni	Tanzania	0.3
	04 May 2024 05:00	Mwera	Tanzania	0.3
	04 May 2024 08:00	Pombwe	Tanzania	0.3
	04 May 2024 09:00	Matapatapa	Tanzania	0.3
	04 May 2024 06:00	Jimbo	Tanzania	0.3
	04 May 2024 05:00	Kipingwe	Tanzania	0.3
	04 May 2024 06:00	Kirongwe	Tanzania	0.3
	04 May 2024 06:00	Chole	Tanzania	0.3
	04 May 2024 13:00	Libambai	Mozambique	0.3
	04 May 2024 13:00	Meronvi	Mozambique	0.2
	04 May 2024 13:00	Vila de Mocimboa da Praia	Mozambique	0.2
	04 May 2024 13:00	Quissengue	Mozambique	0.2
	04 May 2024 13:00	Olumbe	Mozambique	0.2
	04 May 2024 13:00	Bawala	Mozambique	0.2
	04 May 2024 12:00	Quiterajo	Mozambique	0.2
	04 May 2024 14:00	Mkokotoni	Tanzania	0.2
	04 May 2024 14:00	Banda Kuu	Tanzania	0.2
	04 May 2024 19:00	Kisiju	Tanzania	0.2
	04 May 2024 12:00	Pangane	Mozambique	0.2
	04 May 2024 11:00	Kilwa Kivinje	Tanzania	0.2
	04 May 2024 13:00	Maganja	Mozambique	0.2
	03 May 2024 01:00	Kiembi Samaki	Tanzania	0.1
	01 May 2024 13:00	Fumba	Tanzania	0.1
	04 May 2024 17:00	Mjimwema	Tanzania	0.1
	01 May 2024 13:00	Kibele	Tanzania	0.1
	04 May 2024 15:00	Msasani	Tanzania	0.1
	04 May 2024 08:00	Mpafu	Tanzania	0.1
	03 May 2024 01:00	Kijini	Tanzania	0.1
	04 May 2024 12:00	Pingwe	Tanzania	0.1
	01 May 2024 18:00	Ambatoxavavy	Madagascar	0.1
	01 May 2024 18:00	Andrafia	Madagascar	0.1
	01 May 2024 13:00	Mchamba Wima	Tanzania	0.1
	04 May 2024 10:00	Dondo	Tanzania	0.1
	04 May 2024 18:00	Konduchi	Tanzania	0.1
	04 May 2024 08:00	Kilwa Masoko	Tanzania	0.1
	04 May 2024 15:00	Chwaka	Tanzania	0.1
	04 May 2024 13:00	Ukongoroni	Tanzania	0.1
	02 May 2024 00:00	Ampasimena	Madagascar	0.1
	04 May 2024 23:00	Bumbwini	Tanzania	0.1
	04 May 2024 23:00	Zanzibar	Tanzania	0.1
	04 May 2024 23:00	Bet-el-Mali	Tanzania	0.1
	04 May 2024 20:00	Mbweni	Tanzania	0.1
	04 May 2024 23:00	Donge	Tanzania	0.1
	04 May 2024 23:00	Bwereu	Tanzania	0.1
	02 May 2024 01:00	Uzi	Tanzania	0.1
	04 May 2024 18:00	Mapopwe	Tanzania	0.1
	04 May 2024 18:00	Kitogani	Tanzania	0.1
	04 May 2024 18:00	Mkunguni	Tanzania	0.1
	04 May 2024 18:00	Doriya	Tanzania	0.1
	04 May 2024 13:00	Palma	Mozambique	0.1
	04 May 2024 13:00	Boala	Mozambique	0.1
	04 May 2024 09:00	Buuni Village	Tanzania	0.1
	02 May 2024 00:00	Nosy Faly	Madagascar	0.1
	02 May 2024 00:00	Ambato	Madagascar	0.1
	04 May 2024 15:00	Magogoni	Tanzania	0.1
	01 May 2024 18:00	Anjiabe	Madagascar	0.1
	04 May 2024 13:00	Quiwia	Mozambique	0.1
	04 May 2024 14:00	Paje	Tanzania	0.1

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.