Overall Green Tropical Cyclone alert for JOBO-21 in Tanzania, Seychelles from 21 Apr 2021 00:00 UTC to 24 Apr 2021 18:00 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 Green alert Tropical Cyclone for JOBO-21

in Tanzania, Seychelles

20 Apr 2021 12 UTC

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to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

GFS
HWRF
ECMWF

Impact based on all weather systems in the area

Impact

Tropical Cyclone JOBO-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	ECMWF
Exposed countries	Seychelles
Exposed population	Few people in Category 1 or higher
Maximum wind speed	90 km/h
Maximum storm surge	0.2 m (20 Apr 17:45 UTC)
Vulnerability	Medium (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
ECMWF Current	90 km/h	0.2 m	160 mm	0.5
ECMWF Overall	112 km/h	0.2 m	504 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

112 km/h

Up to Few people can be affected by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

Estimations based on the bulletin of 20 Apr 2021 12:00 UTC

Category	Country	Population
CAT. 1	Seychelles	193
Tropical Storm	Seychelles	302

See TC classification SSHS

Wind Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

Alert	N°	Date (UTC)	Max Winds (km/h)	Pop in Cat. 1 or higher	TS	Cat. 1	Cat. 2	Cat. 3	Cat. 4	Cat. 5	Countries
	1	20 Apr 2021 12:00	137	Few people			-	-	-	-	Seychelles

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 20 Apr 2021 12:00 UTC

Level	Country	Population
250-500 mm	Seychelles	216
100-250 mm	Seychelles, Tanzania, Mozambique	18,896	+
	Tanzania	14,393
	Seychelles	279
	Mozambique	4,224
50-100 mm	Tanzania, Seychelles, Mozambique, Comoros, Madagascar	339,755	+
	Tanzania	208,769
	Seychelles	213
	Mozambique	19,730
	Comoros	81,939
	Madagascar	29,104

Rain Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

Alert	N°	Date (UTC)	Max Rainfall (mm)	Pop >100mm or higher	50-100	100-250	250-500	500-750	750-1000	>1000	Countries
	1	20 Apr 2021 12:00	540	20 thousand				-	-	-	Tanzania, Seychelles, Mozambique, Comoros, Madagascar

Impact estimation for the next 72h

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Kipara, Tanzania. This height is estimated for 20 Apr 2021 17:45 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

Storm Surge Exposed locations

Calculation based on the bulletin of 20 Apr 2021 12:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	20 Apr 2021 17:45	Kipara	Tanzania	0.2
	20 Apr 2021 17:45	Dar es Salaam	Tanzania	0.2
	20 Apr 2021 17:45	Msasani	Tanzania	0.2
	20 Apr 2021 17:45	Magogoni	Tanzania	0.2
	20 Apr 2021 17:45	Mjimwema	Tanzania	0.2
	20 Apr 2021 17:45	Mboamaji	Tanzania	0.2
	20 Apr 2021 17:45	Bandarini	Tanzania	0.2
	20 Apr 2021 17:45	Kutani	Tanzania	0.2
	20 Apr 2021 16:30	Bejongoro	Madagascar	0.2
	20 Apr 2021 16:30	Ampandrano	Madagascar	0.2
	20 Apr 2021 16:30	Andrafialava	Madagascar	0.2
	20 Apr 2021 16:30	Mandrony	Madagascar	0.2
	20 Apr 2021 16:30	Maromanjo	Madagascar	0.2
	20 Apr 2021 16:30	Anompaka	Madagascar	0.2
	20 Apr 2021 16:30	Madirotelo	Madagascar	0.2
	20 Apr 2021 16:30	Mahitsihazo	Madagascar	0.2
	20 Apr 2021 16:30	Andamoty	Madagascar	0.2
	20 Apr 2021 16:30	Marokitrana	Madagascar	0.2
	20 Apr 2021 16:30	Bevoay	Madagascar	0.2
	20 Apr 2021 16:30	Maromandia	Madagascar	0.2
	20 Apr 2021 22:45	Mkadini	Tanzania	0.1
	20 Apr 2021 23:45	Ampaha	Madagascar	0.1
	20 Apr 2021 23:45	Andrapengy	Madagascar	0.1
	20 Apr 2021 23:45	Ambinany	Madagascar	0.1
	20 Apr 2021 23:45	Antalaha	Madagascar	0.1
	20 Apr 2021 18:00	Buuni Village	Tanzania	0.1
	20 Apr 2021 14:30	Irodo	Madagascar	0.1
	20 Apr 2021 14:30	Ambaritsatrana	Madagascar	0.1
	20 Apr 2021 14:30	Ampondrabe	Madagascar	0.1
	20 Apr 2021 14:30	Lokia	Madagascar	0.1
	20 Apr 2021 22:45	Mbweni	Tanzania	0.1
	20 Apr 2021 22:45	Doriya	Tanzania	0.1
	20 Apr 2021 15:00	Ambodipont-Sahana	Madagascar	0.1
	20 Apr 2021 23:15	Ampisikanana	Madagascar	0.1
	20 Apr 2021 23:15	Ambatoharanana	Madagascar	0.1
	20 Apr 2021 18:30	Betsimiranja	Madagascar	0.1
	20 Apr 2021 18:30	Ambatonjanahary	Madagascar	0.1
	20 Apr 2021 18:30	Ambinanililabe	Madagascar	0.1
	20 Apr 2021 18:30	Anjiabe	Madagascar	0.1
	20 Apr 2021 16:15	Antananabe	Madagascar	0.1
	20 Apr 2021 16:15	Anorotsangana	Madagascar	0.1
	20 Apr 2021 16:15	Maromokotra	Madagascar	0.1
	20 Apr 2021 16:15	Ampiambesa	Madagascar	0.1
	20 Apr 2021 16:15	Antetezampolaka	Madagascar	0.1
	20 Apr 2021 18:15	Kovkovu	Tanzania	0.1
	20 Apr 2021 18:15	Handeru	Tanzania	0.1
	20 Apr 2021 18:15	Pangani	Tanzania	0.1
	20 Apr 2021 18:15	Kolekole	Tanzania	0.1
	20 Apr 2021 18:15	Vumbi	Tanzania	0.1
	20 Apr 2021 18:15	Kilale	Tanzania	0.1
	20 Apr 2021 15:45	Anjiamalandy	Madagascar	0.1
	20 Apr 2021 15:45	Antsahabe	Madagascar	0.1
	20 Apr 2021 18:30	Mkwaja	Tanzania	0.1
	20 Apr 2021 18:30	Sakura	Tanzania	0.1
	20 Apr 2021 18:30	Ushongo Mabaoni	Tanzania	0.1
	20 Apr 2021 22:30	Kiombani	Tanzania	0.1
	20 Apr 2021 22:30	Kiechuru	Tanzania	0.1
	20 Apr 2021 19:45	Marovoha	Madagascar	0.1
	20 Apr 2021 19:45	Ampitily	Madagascar	0.1
	20 Apr 2021 19:45	Ambalatsingy	Madagascar	0.1
	20 Apr 2021 19:45	Singalana	Madagascar	0.1
	20 Apr 2021 15:00	Andringahely	Madagascar	0.1
	20 Apr 2021 22:30	Mbwera	Tanzania	0.1
	20 Apr 2021 22:15	Magawa	Tanzania	0.1
	20 Apr 2021 22:15	Msindaji	Tanzania	0.1
	20 Apr 2021 22:15	Mchungu	Tanzania	0.1
	20 Apr 2021 18:15	Kibele	Tanzania	0.1
	20 Apr 2021 18:15	Mkuuni	Tanzania	0.1
	20 Apr 2021 18:15	Gulioni	Tanzania	0.1
	20 Apr 2021 18:15	Mapopwe	Tanzania	0.1
	20 Apr 2021 18:15	Mdudu Mdogo	Tanzania	0.1
	20 Apr 2021 18:15	Dikoni	Tanzania	0.1
	20 Apr 2021 18:15	Chwaka	Tanzania	0.1
	20 Apr 2021 18:15	Ukongoroni	Tanzania	0.1
	20 Apr 2021 18:15	Pingwe	Tanzania	0.1
	20 Apr 2021 23:15	Kigongoni	Tanzania	0.1
	20 Apr 2021 23:15	Bagamoyo	Tanzania	0.1
	20 Apr 2021 14:45	Antseranana	Madagascar	0.1
	20 Apr 2021 14:45	Amoronjia-Orangea	Madagascar	0.1
	20 Apr 2021 14:45	Andasoa	Madagascar	0.1
	20 Apr 2021 14:45	Ampasindava	Madagascar	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.