Overall Orange Tropical Cyclone alert for HIDAYA-24 in Tanzania, Seychelles, Comoros from 01 May 2024 00:00 UTC to 02 May 2024 00:00 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

02 May 2024 00 UTC

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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	Seychelles, Tanzania
Exposed population	No people in Category 1 or higher
Maximum wind speed	93 km/h
Maximum storm surge	0.3 m (04 May 01:00 UTC)
Vulnerability	Medium (Comoros)

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	93 km/h	0.3 m	n.a.	0.5
Overall	93 km/h	0.3 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

93 km/h Current Max.

Up to 210000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Alert	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

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)
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
2	02 May 2024 12:00	Tropical storm	83	no people	no people	-9.1, 44
2	03 May 2024 00:00	Tropical storm	93	no people	no people	-8.8, 42.9
2	03 May 2024 12:00	Tropical storm	93	no people	no people	-8.4, 42
2	04 May 2024 00:00	Tropical storm	74	no people	210000 people	-7.7, 41
2	05 May 2024 00:00	Tropical depression	46	no people	no people	-6, 39.8

Actual track of the current bulletin

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

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Exposed population - AoIs

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

Countries

Country	Population in Tropical Storm or higher strength
Seychelles	<1000 people
Tanzania	190000 people

Provinces

Region Province	Country	Population in Tropical Storm or higher strength
Seychelles	Seychelles	<1000 people
Zanzibar Central/South	Tanzania	120000 people
Zanzibar North	Tanzania	75000 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)
Assumption Island		3	Civ.	Paved	No	3900

Ports

Name	LOCODE	Country
Assumption Island		Seychelles

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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.

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StormSurge

0.3 m

The maximum Storm surge height is 0.3m in Meronvi, Mozambique. This height is estimated for 04 May 2024 01:00 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 (48 locations). Calculation based on advisory number 2 of 02 May 2024 00:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	04 May 2024 01:00	Meronvi	Mozambique	0.3
	04 May 2024 01:00	Quissengue	Mozambique	0.3
	04 May 2024 01:00	Libambai	Mozambique	0.2
	04 May 2024 01:00	Vila de Mocimboa da Praia	Mozambique	0.2
	04 May 2024 01:00	Bawala	Mozambique	0.2
	04 May 2024 02:00	Olumbe	Mozambique	0.2
	04 May 2024 12:00	Dondo	Tanzania	0.2
	04 May 2024 12:00	Mpafu	Tanzania	0.2
	04 May 2024 01:00	Maganja	Mozambique	0.2
	04 May 2024 12:00	Kutani	Tanzania	0.2
	04 May 2024 00:00	Mwera	Tanzania	0.2
	04 May 2024 00:00	Ziwani	Tanzania	0.2
	04 May 2024 00:00	Kijichame	Tanzania	0.2
	04 May 2024 15:00	Kisiju	Tanzania	0.2
	04 May 2024 00:00	Taandani	Tanzania	0.2
	04 May 2024 00:00	Uchangani	Tanzania	0.2
	04 May 2024 01:00	Mkarangama	Tanzania	0.1
	04 May 2024 01:00	Kipingwe	Tanzania	0.1
	04 May 2024 01:00	Kirongwe	Tanzania	0.1
	04 May 2024 05:00	Mbwera	Tanzania	0.1
	04 May 2024 05:00	Kiechuru	Tanzania	0.1
	04 May 2024 01:00	Kilindoni	Tanzania	0.1
	01 May 2024 13:00	Fumba	Tanzania	0.1
	04 May 2024 01:00	Kiombani	Tanzania	0.1
	04 May 2024 14:00	Buuni Village	Tanzania	0.1
	04 May 2024 01:00	Quiterajo	Mozambique	0.1
	01 May 2024 13:00	Kibele	Tanzania	0.1
	04 May 2024 02:00	Jimbo	Tanzania	0.1
	04 May 2024 02:00	Quiwia	Mozambique	0.1
	01 May 2024 18:00	Ambatoxavavy	Madagascar	0.1
	01 May 2024 18:00	Andrafia	Madagascar	0.1
	04 May 2024 10:00	Jaja	Tanzania	0.1
	04 May 2024 02:00	Palma	Mozambique	0.1
	04 May 2024 02:00	Boala	Mozambique	0.1
	04 May 2024 23:00	Mchamba Wima	Tanzania	0.1
	02 May 2024 01:00	Nosy Faly	Madagascar	0.1
	02 May 2024 01:00	Ambato	Madagascar	0.1
	02 May 2024 01:00	Ampasimena	Madagascar	0.1
	04 May 2024 14:00	Magawa	Tanzania	0.1
	04 May 2024 00:00	Chole	Tanzania	0.1
	04 May 2024 01:00	Marere	Mozambique	0.1
	04 May 2024 01:00	Lucete	Mozambique	0.1
	04 May 2024 01:00	Uzi	Tanzania	0.1
	04 May 2024 00:00	Chekea	Tanzania	0.1
	04 May 2024 00:00	Bopwe	Tanzania	0.1
	01 May 2024 18:00	Anjiabe	Madagascar	0.1
	04 May 2024 01:00	Pangane	Mozambique	0.1
	04 May 2024 00:00	Msimbati	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.