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

21 Apr 2021 06 UTC

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to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

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	GFS
Exposed countries	Seychelles
Exposed population	No people in Category 1 or higher
Maximum wind speed	94 km/h
Maximum storm surge	0.2 m (21 Apr 10:45 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
GFS Current	94 km/h	0.2 m	64 mm	0.5
GFS Overall	130 km/h	0.2 m	527 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

130 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 21 Apr 2021 06:00 UTC

Category	Country	Population
Tropical Storm	Seychelles	495

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	21 Apr 2021 00:00	86	-		-	-	-	-	-	Seychelles
	2	21 Apr 2021 06:00	112	-		-	-	-	-	-	Seychelles

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 21 Apr 2021 06:00 UTC

Level	Country	Population
100-250 mm	Seychelles	331
50-100 mm	Tanzania, Seychelles, Mozambique, Mayotte, Madagascar	247,118	+
	Tanzania	842
	Seychelles	164
	Mozambique	04
	Mayotte	215,428
	Madagascar	30,680

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	21 Apr 2021 00:00	72	-	-	-	-	-	-	-
	2	21 Apr 2021 06:00	313	Few people			-	-	-	-	Tanzania, Seychelles, Mozambique, Mayotte, Madagascar

Impact estimation for the next 72h

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Mkadini, Tanzania. This height is estimated for 21 Apr 2021 10:45 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 21 Apr 2021 06:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	21 Apr 2021 10:45	Mkadini	Tanzania	0.2
	21 Apr 2021 13:15	Somanga	Tanzania	0.2
	21 Apr 2021 13:15	Pombwe	Tanzania	0.2
	21 Apr 2021 13:15	Jaja	Tanzania	0.2
	21 Apr 2021 10:30	Mbweni	Tanzania	0.2
	21 Apr 2021 10:30	Doriya	Tanzania	0.2
	22 Apr 2021 09:00	Ambalihabe	Madagascar	0.1
	22 Apr 2021 09:00	Ambodizaotra	Madagascar	0.1
	22 Apr 2021 09:00	Antotoro	Madagascar	0.1
	22 Apr 2021 09:00	Ampohana	Madagascar	0.1
	21 Apr 2021 13:30	Ecota	Mozambique	0.1
	21 Apr 2021 13:30	Nacala Velha	Mozambique	0.1
	21 Apr 2021 13:30	Namelala	Mozambique	0.1
	21 Apr 2021 13:30	Capelelene	Mozambique	0.1
	21 Apr 2021 13:30	Nhiendgi	Mozambique	0.1
	21 Apr 2021 13:30	Maaia	Mozambique	0.1
	21 Apr 2021 13:30	Nacala	Mozambique	0.1
	21 Apr 2021 13:30	Chepa	Mozambique	0.1
	21 Apr 2021 13:30	Matiquite	Mozambique	0.1
	21 Apr 2021 13:30	Minhauine	Mozambique	0.1
	22 Apr 2021 13:00	Magawa	Tanzania	0.1
	22 Apr 2021 13:00	Msindaji	Tanzania	0.1
	22 Apr 2021 13:00	Mchungu	Tanzania	0.1
	21 Apr 2021 13:00	Marovoha	Madagascar	0.1
	21 Apr 2021 13:00	Ampitily	Madagascar	0.1
	21 Apr 2021 13:00	Ambalatsingy	Madagascar	0.1
	21 Apr 2021 13:00	Singalana	Madagascar	0.1
	21 Apr 2021 13:00	Antaribao	Madagascar	0.1
	21 Apr 2021 13:00	Ambodibonara	Madagascar	0.1
	21 Apr 2021 13:00	Tsaratanana	Madagascar	0.1
	21 Apr 2021 13:00	Ampasindava	Madagascar	0.1
	21 Apr 2021 13:00	Ankinganifahatelo	Madagascar	0.1
	23 Apr 2021 15:45	Matapatapa	Tanzania	0.1
	21 Apr 2021 10:30	Kigongoni	Tanzania	0.1
	21 Apr 2021 10:30	Bagamoyo	Tanzania	0.1
	21 Apr 2021 10:15	Antananabe	Madagascar	0.1
	21 Apr 2021 10:15	Anjiamalandy	Madagascar	0.1
	21 Apr 2021 10:15	Mandrony	Madagascar	0.1
	21 Apr 2021 10:15	Anorotsangana	Madagascar	0.1
	21 Apr 2021 10:15	Antsahabe	Madagascar	0.1
	21 Apr 2021 10:15	Maromokotra	Madagascar	0.1
	21 Apr 2021 10:15	Marokitrana	Madagascar	0.1
	21 Apr 2021 10:15	Ampiambesa	Madagascar	0.1
	21 Apr 2021 10:15	Antetezampolaka	Madagascar	0.1
	21 Apr 2021 06:00	Nosy Faly	Madagascar	0.1
	21 Apr 2021 06:00	Ambato	Madagascar	0.1
	21 Apr 2021 06:00	Ambaliha	Madagascar	0.1
	21 Apr 2021 06:00	Antanamazava	Madagascar	0.1
	21 Apr 2021 06:00	Ambatomainty	Madagascar	0.1
	23 Apr 2021 12:15	Mkwaja	Tanzania	0.1
	23 Apr 2021 13:30	Sadani	Tanzania	0.1
	21 Apr 2021 07:00	Bejongoro	Madagascar	0.1
	21 Apr 2021 07:00	Ampandrano	Madagascar	0.1
	21 Apr 2021 07:00	Andrafialava	Madagascar	0.1
	21 Apr 2021 07:00	Maromanjo	Madagascar	0.1
	21 Apr 2021 07:00	Anompaka	Madagascar	0.1
	21 Apr 2021 07:00	Madirotelo	Madagascar	0.1
	21 Apr 2021 07:00	Mahitsihazo	Madagascar	0.1
	21 Apr 2021 07:00	Andamoty	Madagascar	0.1
	21 Apr 2021 07:00	Bevoay	Madagascar	0.1
	21 Apr 2021 07:00	Maromandia	Madagascar	0.1
	21 Apr 2021 12:30	Kibele	Tanzania	0.1
	21 Apr 2021 12:30	Mkuuni	Tanzania	0.1
	21 Apr 2021 12:30	Gulioni	Tanzania	0.1
	21 Apr 2021 12:30	Mapopwe	Tanzania	0.1
	21 Apr 2021 12:30	Mdudu Mdogo	Tanzania	0.1
	21 Apr 2021 12:30	Dikoni	Tanzania	0.1
	21 Apr 2021 12:30	Chwaka	Tanzania	0.1
	21 Apr 2021 12:30	Ukongoroni	Tanzania	0.1
	21 Apr 2021 12:30	Pingwe	Tanzania	0.1
	21 Apr 2021 13:15	Mbwera	Tanzania	0.1
	21 Apr 2021 08:45	Kipara	Tanzania	0.1
	21 Apr 2021 08:45	Dar es Salaam	Tanzania	0.1
	21 Apr 2021 08:45	Msasani	Tanzania	0.1
	21 Apr 2021 08:45	Magogoni	Tanzania	0.1
	21 Apr 2021 08:45	Mjimwema	Tanzania	0.1
	21 Apr 2021 08:45	Mboamaji	Tanzania	0.1
	21 Apr 2021 08:45	Bandarini	Tanzania	0.1
	21 Apr 2021 08:45	Kutani	Tanzania	0.1
	21 Apr 2021 19:00	Dondo	Tanzania	0.1
	21 Apr 2021 19:00	Kisiju	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.