Overall Green Tropical Cyclone for INDUSA-26 Off-shore from 01 Apr 2026 18:00 UTC to 05 Apr 2026 12:00 UTC

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

Overall Green Tropical Cyclone for INDUSA-26

Off-shore

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 INDUSA-26 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GFS
Exposed countries
Exposed population	No people in Category 1 or higher
Maximum wind speed	140 km/h
Maximum storm surge	1.9 m (02 Apr 00:45 UTC)
Vulnerability	--

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
GFS Current	90 km/h	1.5 m	133 mm	0.5
GFS Overall	140 km/h	1.9 m	381 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 06 Apr 2026 06:00 UTC (Overall situation)

See TC classification SSHS

Wind Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Winds (km/h)	Pop in Cat. 1 or higher	TS	Cat. 1	Cat. 2	Cat. 3	Cat. 4	Cat. 5
1	01 Apr 2026 18:00	72	-	-	-	-	-	-	-
2	02 Apr 2026 00:00	83	-	-	-	-	-	-	-
3	02 Apr 2026 06:00	79	-	-	-	-	-	-	-
4	02 Apr 2026 12:00	94	-	-	-	-	-	-	-
5	02 Apr 2026 18:00	119	-	-	-	-	-	-	-
6	03 Apr 2026 00:00	140	-	-	-	-	-	-	-
7	03 Apr 2026 06:00	137	-	-	-	-	-	-	-
8	03 Apr 2026 12:00	108	-	-	-	-	-	-	-
9	03 Apr 2026 18:00	122	-	-	-	-	-	-	-
10	04 Apr 2026 00:00	126	-	-	-	-	-	-	-
11	04 Apr 2026 06:00	130	-	-	-	-	-	-	-
12	04 Apr 2026 12:00	130	-	-	-	-	-	-	-
13	04 Apr 2026 18:00	122	-	-	-	-	-	-	-
14	05 Apr 2026 00:00	126	-	-	-	-	-	-	-
15	05 Apr 2026 06:00	126	-	-	-	-	-	-	-
16	05 Apr 2026 12:00	112	-	-	-	-	-	-	-
17	05 Apr 2026 18:00	101	-	-	-	-	-	-	-
18	06 Apr 2026 00:00	79	-	-	-	-	-	-	-
19	06 Apr 2026 06:00	90	-	-	-	-	-	-	-

Download:

Impact estimation for the next 72h

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Rainfall

381 mm

No people can be affected by rain higher than 100mm (see SSHS)

Rain exposed population - AoIs

Estimations based on the bulletin of 06 Apr 2026 06:00 UTC (Overall situation)

Level	Country	Population
50-100 mm	Seychelles, Mauritius	592	+
	Seychelles	322
	Mauritius	258
	Other countries	11

Rain Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Rainfall (mm)	Pop >100mm or higher	50-100	100-250	250-500	500-750	750-1000	>1000
1	01 Apr 2026 18:00	132	-	-	-	-	-	-	-
2	02 Apr 2026 00:00	106	-	-	-	-	-	-	-
3	02 Apr 2026 06:00	95	-	-	-	-	-	-	-
4	02 Apr 2026 12:00	127	-	-	-	-	-	-	-
5	02 Apr 2026 18:00	188	-	-	-	-	-	-	-
6	03 Apr 2026 00:00	137	-	-	-	-	-	-	-
7	03 Apr 2026 06:00	135	-	-	-	-	-	-	-
8	03 Apr 2026 12:00	94	-	-	-	-	-	-	-
9	03 Apr 2026 18:00	117	-	-	-	-	-	-	-
10	04 Apr 2026 00:00	113	-	-	-	-	-	-	-
11	04 Apr 2026 06:00	111	-	-	-	-	-	-	-
12	04 Apr 2026 12:00	95	-	-	-	-	-	-	-
13	04 Apr 2026 18:00	183	-	-	-	-	-	-	-
14	05 Apr 2026 00:00	93	-	-	-	-	-	-	-
15	05 Apr 2026 06:00	87	-	-	-	-	-	-	-
16	05 Apr 2026 12:00	87	-	-	-	-	-	-	-
17	05 Apr 2026 18:00	82	-	-	-	-	-	-	-
18	06 Apr 2026 00:00	46	-	-	-	-	-	-	-
19	06 Apr 2026 06:00	133	-	-	-	-	-	-	-

Impact estimation for the next 72h

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StormSurge

1.9 m

The maximum Storm surge height is 1.9m in Port Couvreux, French Southern and Antarctic Lands. This height is estimated for 02 Apr 2026 00:45 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.

Storm Surge Exposed population - AoIs

Estimations based on the bulletin of 06 Apr 2026 06:00 UTC (Overall situation)

Level	Country	Population
0.5 - 1.0 m	Seychelles	5,805
0.25 - 0.5 m	Seychelles	55,672

Storm Surge Exposed locations

Calculation based on the bulletin of 06 Apr 2026 06:00 UTC (Overall situation)

Level	Date (UTC)	Name	Country	Storm surge height (m)
	02 Apr 2026 00:45	Port Couvreux	French Southern and Antarctic Lands	1.9
	02 Apr 2026 19:00	Victoria	Seychelles	0.6
	04 Apr 2026 22:15	Anse Boileau	Seychelles	0.5
	04 Apr 2026 22:15	Anse Volbert Village	Seychelles	0.5
	04 Apr 2026 22:15	La Reunion	Seychelles	0.5
	04 Apr 2026 01:45	Saint-Antoine	Mauritius	0.2
	04 Apr 2026 01:45	Riviere du Rempart	Mauritius	0.2
	05 Apr 2026 13:30	La Ferme	Mauritius	0.2
	05 Apr 2026 13:30	Port Mathurin	Mauritius	0.2
	05 Apr 2026 01:45	Riche-en-Eau	Mauritius	0.2
	05 Apr 2026 01:45	Maheboug	Mauritius	0.2
	05 Apr 2026 01:45	Grande Reviere Sud Est	Mauritius	0.2
	05 Apr 2026 01:15	Saint-Denis	Reunion	0.2
	05 Apr 2026 01:15	Saint-Marie	Reunion	0.2
	05 Apr 2026 01:15	Sainte-Suzanne	Reunion	0.2
	05 Apr 2026 01:15	Saint-Andre	Reunion	0.2
	05 Apr 2026 01:15	Bras-Panon	Reunion	0.2
	05 Apr 2026 01:15	Saint-Benoit	Reunion	0.2
	04 Apr 2026 01:45	Trou aux Biches	Mauritius	0.2
	04 Apr 2026 02:00	Le Port	Reunion	0.1
	04 Apr 2026 02:00	La Possession	Reunion	0.1
	04 Apr 2026 13:30	Sainte-Rose	Reunion	0.1
	04 Apr 2026 13:30	Cascades	Reunion	0.1
	04 Apr 2026 02:00	Port Louis	Mauritius	0.1
	04 Apr 2026 02:00	Saint-Paul	Reunion	0.1
	03 Apr 2026 11:45	Point Marianne	British Indian Ocean Territory	0.1
	03 Apr 2026 11:45	East Point Plantation	British Indian Ocean Territory	0.1
	04 Apr 2026 01:45	Black River	Mauritius	0.1
	04 Apr 2026 01:45	Choisy	Mauritius	0.1
	04 Apr 2026 01:45	Chemin Grenier	Mauritius	0.1
	04 Apr 2026 02:00	Trois Bassins	Reunion	0.1
	04 Apr 2026 01:30	Souillac	Mauritius	0.1
	04 Apr 2026 01:15	Saint-Philippe	Reunion	0.1
	04 Apr 2026 00:45	Saint-Leu	Reunion	0.1
	04 Apr 2026 00:45	Les Avirons	Reunion	0.1
	04 Apr 2026 01:15	Saint-Pierre	Reunion	0.1
	04 Apr 2026 01:15	Etang Sale	Reunion	0.1
	04 Apr 2026 01:15	Saint-Louis	Reunion	0.1
	04 Apr 2026 01:15	Petite Ile	Reunion	0.1
	04 Apr 2026 01:15	Saint-Joseph	Reunion	0.1

Disclaimer - Copyright
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.