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 00 UTC

click on

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	No people in Category 1 or higher
Maximum wind speed	112 km/h
Maximum storm surge	0.2 m (21 Apr 15:45 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	112 km/h	0.2 m	165 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 21 Apr 2021 00:00 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	20 Apr 2021 12:00	90	-	-	-	-	-	-	-
	2	21 Apr 2021 00:00	122	-		-	-	-	-	-	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 00:00 UTC

Level	Country	Population
250-500 mm	Seychelles	193
100-250 mm	Seychelles	302
50-100 mm	Tanzania, Comoros, Madagascar	89,976	+
	Tanzania	46,192
	Comoros	40,468
	Madagascar	3,316

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	160	7 thousand			-	-	-	-	Tanzania, Mozambique
	2	21 Apr 2021 00:00	539	Few people				-	-	-	Tanzania, Seychelles, 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 Somanga, Tanzania. This height is estimated for 21 Apr 2021 15:45 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 00:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	21 Apr 2021 15:45	Somanga	Tanzania	0.2
	21 Apr 2021 15:45	Matapatapa	Tanzania	0.2
	21 Apr 2021 15:30	Kolekole	Tanzania	0.1
	21 Apr 2021 15:30	Kilale	Tanzania	0.1
	21 Apr 2021 15:30	Mvuni	Tanzania	0.1
	21 Apr 2021 15:30	Kiriwani	Tanzania	0.1
	21 Apr 2021 15:30	Tanga	Tanzania	0.1
	21 Apr 2021 10:00	Marovoha	Madagascar	0.1
	21 Apr 2021 10:00	Ampitily	Madagascar	0.1
	21 Apr 2021 10:00	Ambalatsingy	Madagascar	0.1
	21 Apr 2021 10:00	Singalana	Madagascar	0.1
	21 Apr 2021 19:15	Pombwe	Tanzania	0.1
	21 Apr 2021 12:45	Jaja	Tanzania	0.1
	21 Apr 2021 02:30	Ampaha	Madagascar	0.1
	21 Apr 2021 02:30	Andrapengy	Madagascar	0.1
	21 Apr 2021 02:30	Ambinany	Madagascar	0.1
	21 Apr 2021 02:30	Antalaha	Madagascar	0.1
	21 Apr 2021 08:30	Betsimiranja	Madagascar	0.1
	21 Apr 2021 08:30	Ambatonjanahary	Madagascar	0.1
	21 Apr 2021 08:30	Ambinanililabe	Madagascar	0.1
	21 Apr 2021 08:30	Anjiabe	Madagascar	0.1
	21 Apr 2021 10:30	Ecota	Mozambique	0.1
	21 Apr 2021 10:30	Nacala Velha	Mozambique	0.1
	21 Apr 2021 10:30	Namelala	Mozambique	0.1
	21 Apr 2021 10:30	Capelelene	Mozambique	0.1
	21 Apr 2021 10:30	Nhiendgi	Mozambique	0.1
	21 Apr 2021 10:30	Maaia	Mozambique	0.1
	21 Apr 2021 10:30	Nacala	Mozambique	0.1
	21 Apr 2021 10:30	Chepa	Mozambique	0.1
	21 Apr 2021 10:30	Matiquite	Mozambique	0.1
	21 Apr 2021 10:30	Minhauine	Mozambique	0.1
	21 Apr 2021 13:45	Bejongoro	Madagascar	0.1
	21 Apr 2021 13:45	Ampandrano	Madagascar	0.1
	21 Apr 2021 13:45	Andrafialava	Madagascar	0.1
	21 Apr 2021 13:45	Mandrony	Madagascar	0.1
	21 Apr 2021 13:45	Maromanjo	Madagascar	0.1
	21 Apr 2021 13:45	Anompaka	Madagascar	0.1
	21 Apr 2021 13:45	Madirotelo	Madagascar	0.1
	21 Apr 2021 13:45	Mahitsihazo	Madagascar	0.1
	21 Apr 2021 13:45	Andamoty	Madagascar	0.1
	21 Apr 2021 13:45	Marokitrana	Madagascar	0.1
	21 Apr 2021 13:45	Bevoay	Madagascar	0.1
	21 Apr 2021 13:45	Maromandia	Madagascar	0.1
	21 Apr 2021 04:00	Mkadini	Tanzania	0.1
	21 Apr 2021 02:45	Kiombani	Tanzania	0.1
	21 Apr 2021 02:45	Kiechuru	Tanzania	0.1
	21 Apr 2021 16:15	Magawa	Tanzania	0.1
	21 Apr 2021 16:15	Msindaji	Tanzania	0.1
	21 Apr 2021 16:15	Mchungu	Tanzania	0.1
	21 Apr 2021 11:30	Kipara	Tanzania	0.1
	21 Apr 2021 11:30	Dar es Salaam	Tanzania	0.1
	21 Apr 2021 11:30	Msasani	Tanzania	0.1
	21 Apr 2021 11:30	Magogoni	Tanzania	0.1
	21 Apr 2021 11:30	Mjimwema	Tanzania	0.1
	21 Apr 2021 11:30	Mboamaji	Tanzania	0.1
	21 Apr 2021 11:30	Bandarini	Tanzania	0.1
	21 Apr 2021 11:30	Kutani	Tanzania	0.1
	21 Apr 2021 02:45	Kilindoni	Tanzania	0.1
	21 Apr 2021 02:45	Mkarangama	Tanzania	0.1
	21 Apr 2021 02:45	Kipingwe	Tanzania	0.1
	21 Apr 2021 02:45	Kirongwe	Tanzania	0.1
	21 Apr 2021 02:45	Jimbo	Tanzania	0.1
	21 Apr 2021 16:30	Kisiju	Tanzania	0.1
	21 Apr 2021 06:15	Irodo	Madagascar	0.1
	21 Apr 2021 06:15	Ambaritsatrana	Madagascar	0.1
	21 Apr 2021 06:15	Ampondrabe	Madagascar	0.1
	21 Apr 2021 06:15	Lokia	Madagascar	0.1
	21 Apr 2021 03:00	Antseranana	Madagascar	0.1
	21 Apr 2021 03:00	Amoronjia-Orangea	Madagascar	0.1
	21 Apr 2021 03:30	Mahatsaborimaika	Madagascar	0.1
	21 Apr 2021 03:30	Mangaoka	Madagascar	0.1
	21 Apr 2021 03:30	Ilomotro	Madagascar	0.1
	21 Apr 2021 03:30	Andohonko	Madagascar	0.1
	21 Apr 2021 03:30	Andranotsara	Madagascar	0.1
	21 Apr 2021 03:30	Antsisikala	Madagascar	0.1
	21 Apr 2021 03:30	Antsahalalina	Madagascar	0.1
	21 Apr 2021 03:30	Andranovondronina	Madagascar	0.1
	21 Apr 2021 02:45	Mpafu	Tanzania	0.1
	21 Apr 2021 02:45	Buuni Village	Tanzania	0.1
	21 Apr 2021 06:30	Antananabe	Madagascar	0.1
	21 Apr 2021 06:30	Anjiamalandy	Madagascar	0.1
	21 Apr 2021 06:30	Anorotsangana	Madagascar	0.1
	21 Apr 2021 06:30	Antsahabe	Madagascar	0.1
	21 Apr 2021 06:30	Maromokotra	Madagascar	0.1
	21 Apr 2021 06:30	Ampiambesa	Madagascar	0.1
	21 Apr 2021 06:30	Antetezampolaka	Madagascar	0.1
	21 Apr 2021 03:30	Kigongoni	Tanzania	0.1
	21 Apr 2021 03:30	Bagamoyo	Tanzania	0.1
	21 Apr 2021 16:15	Dondo	Tanzania	0.1
	21 Apr 2021 10:45	Marovato	Madagascar	0.1
	21 Apr 2021 10:45	Ampasibe	Madagascar	0.1
	21 Apr 2021 10:45	Analalava	Madagascar	0.1
	21 Apr 2021 10:45	Ananalava	Madagascar	0.1
	22 Apr 2021 00:45	Quionga	Mozambique	0.1
	22 Apr 2021 00:45	Quiwia	Mozambique	0.1
	21 Apr 2021 02:45	Mbwera	Tanzania	0.1
	22 Apr 2021 17:00	Sadani	Tanzania	0.1
	21 Apr 2021 16:30	Nyambati	Tanzania	0.1
	21 Apr 2021 16:30	Salale	Tanzania	0.1
	21 Apr 2021 15:00	Kibele	Tanzania	0.1
	21 Apr 2021 15:00	Mkuuni	Tanzania	0.1
	21 Apr 2021 15:00	Gulioni	Tanzania	0.1
	21 Apr 2021 15:00	Mapopwe	Tanzania	0.1
	21 Apr 2021 15:00	Mdudu Mdogo	Tanzania	0.1
	21 Apr 2021 15:00	Dikoni	Tanzania	0.1
	21 Apr 2021 15:00	Chwaka	Tanzania	0.1
	21 Apr 2021 15:00	Ukongoroni	Tanzania	0.1
	21 Apr 2021 15:00	Pingwe	Tanzania	0.1
	21 Apr 2021 04:15	Ampondra	Madagascar	0.1
	21 Apr 2021 04:15	Antsahotompy	Madagascar	0.1
	21 Apr 2021 04:15	Amboanio	Madagascar	0.1
	21 Apr 2021 04:15	Ambondrombe	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.