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

23 Apr 2021 00 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	Tanzania
Exposed population	No people in Category 1 or higher
Maximum wind speed	104 km/h
Maximum storm surge	0.1 m (25 Apr 07:15 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	104 km/h	0.1 m	273 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 23 Apr 2021 00:00 UTC

Category	Country	Population
Tropical Storm	Tanzania	723

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	Countries
1	20 Apr 2021 12:00	90	-	-	-	-	-	-	-
2	21 Apr 2021 00:00	112	-		-	-	-	-	-	Seychelles
3	21 Apr 2021 12:00	108	-		-	-	-	-	-	Seychelles
4	22 Apr 2021 00:00	104	-	-	-	-	-	-	-
5	22 Apr 2021 12:00	101	-	-	-	-	-	-	-
6	23 Apr 2021 00:00	104	-		-	-	-	-	-	Tanzania

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 23 Apr 2021 00:00 UTC

Level	Country	Population
250-500 mm	Tanzania	3,456
100-250 mm	Tanzania, Mozambique, Madagascar	193,413	+
	Tanzania	104,418
	Mozambique	44,902
	Madagascar	44,093
50-100 mm	Tanzania, Mozambique, Comoros, Madagascar	1,876,425	+
	Tanzania	992,329
	Mozambique	417,126
	Comoros	74,331
	Madagascar	392,639

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	Countries
1	20 Apr 2021 12:00	160	7 thousand			-	-	-	-	Tanzania, Mozambique
2	21 Apr 2021 00:00	165	-		-	-	-	-	-	Seychelles
3	21 Apr 2021 12:00	299	Few people			-	-	-	-	Seychelles, Tanzania
4	22 Apr 2021 00:00	349	-		-	-	-	-	-	Seychelles
5	22 Apr 2021 12:00	230	-	-	-	-	-	-	-
6	23 Apr 2021 00:00	406	200 thousand				-	-	-	Tanzania, Mozambique, Comoros, Madagascar

Impact estimation for the next 72h

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StormSurge

0.1 m

The maximum Storm surge height is 0.1m in Somanga, Tanzania. This height is estimated for 25 Apr 2021 07:15 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 23 Apr 2021 00:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	25 Apr 2021 07:15	Somanga	Tanzania	0.1
	25 Apr 2021 07:15	Matapatapa	Tanzania	0.1
	25 Apr 2021 07:15	Pombwe	Tanzania	0.1
	23 Apr 2021 15:00	Mkwaja	Tanzania	0.1
	24 Apr 2021 20:00	Jaja	Tanzania	0.1
	24 Apr 2021 20:00	Mbwera	Tanzania	0.1
	24 Apr 2021 20:00	Kiechuru	Tanzania	0.1
	23 Apr 2021 10:15	Mkadini	Tanzania	0.1
	23 Apr 2021 09:45	Magawa	Tanzania	0.1
	23 Apr 2021 09:45	Msindaji	Tanzania	0.1
	23 Apr 2021 09:45	Mchungu	Tanzania	0.1
	24 Apr 2021 20:30	Kiombani	Tanzania	0.1
	24 Apr 2021 20:15	Mwera	Tanzania	0.1
	24 Apr 2021 20:15	Kilindoni	Tanzania	0.1
	23 Apr 2021 09:30	Miquindane	Mozambique	0.1
	23 Apr 2021 09:30	Lurio	Mozambique	0.1
	23 Apr 2021 09:30	Mauala	Mozambique	0.1
	23 Apr 2021 09:30	Arire	Mozambique	0.1
	23 Apr 2021 08:15	Kovkovu	Tanzania	0.1
	23 Apr 2021 08:15	Handeru	Tanzania	0.1
	23 Apr 2021 08:15	Pangani	Tanzania	0.1
	23 Apr 2021 08:15	Kolekole	Tanzania	0.1
	23 Apr 2021 08:15	Vumbi	Tanzania	0.1
	23 Apr 2021 08:15	Kilale	Tanzania	0.1
	23 Apr 2021 09:30	Dondo	Tanzania	0.1
	23 Apr 2021 09:30	Kisiju	Tanzania	0.1
	23 Apr 2021 09:00	Kipara	Tanzania	0.1
	23 Apr 2021 09:00	Dar es Salaam	Tanzania	0.1
	23 Apr 2021 09:00	Msasani	Tanzania	0.1
	23 Apr 2021 09:00	Magogoni	Tanzania	0.1
	23 Apr 2021 09:00	Mjimwema	Tanzania	0.1
	23 Apr 2021 09:00	Mboamaji	Tanzania	0.1
	23 Apr 2021 09:00	Bandarini	Tanzania	0.1
	23 Apr 2021 09:00	Kutani	Tanzania	0.1
	23 Apr 2021 05:00	Gulioni	Tanzania	0.1
	23 Apr 2021 05:00	Mapopwe	Tanzania	0.1
	23 Apr 2021 05:00	Mdudu Mdogo	Tanzania	0.1
	23 Apr 2021 05:00	Dikoni	Tanzania	0.1
	23 Apr 2021 05:00	Chwaka	Tanzania	0.1
	23 Apr 2021 05:00	Kitogani	Tanzania	0.1
	23 Apr 2021 05:00	Ukongoroni	Tanzania	0.1
	23 Apr 2021 05:00	Pingwe	Tanzania	0.1
	23 Apr 2021 05:00	Paje	Tanzania	0.1
	23 Apr 2021 15:45	Sadani	Tanzania	0.1
	23 Apr 2021 10:15	Mbweni	Tanzania	0.1
	23 Apr 2021 10:15	Doriya	Tanzania	0.1
	24 Apr 2021 18:30	Mkarangama	Tanzania	0.1
	24 Apr 2021 18:30	Chole	Tanzania	0.1
	24 Apr 2021 18:30	Kipingwe	Tanzania	0.1
	24 Apr 2021 18:30	Kirongwe	Tanzania	0.1
	24 Apr 2021 18:30	Jimbo	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.