Overall Green alert Tropical Cyclone for JOBO-21
in Tanzania, Seychelles
25 Apr 2021 06 UTC
click on to select bulletin time
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 130 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 130 km/h 0.2 m 527 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



Wind exposed population - AoIs

Estimations based on the bulletin of 25 Apr 2021 06:00 UTC (Overall situation)
CategoryCountryPopulation 
Tropical StormSeychelles495 

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
GREEN 1 21 Apr 2021 00:00 86 -
- - - - - Seychelles
GREEN 2 21 Apr 2021 06:00 94 -
- - - - - Seychelles
GREEN 3 21 Apr 2021 12:00 130 -
- - - - - Seychelles
GREEN 4 21 Apr 2021 18:00 101 -
- - - - - Seychelles
GREEN 5 22 Apr 2021 00:00 115 -
- - - - - Seychelles
GREEN 6 22 Apr 2021 06:00 112 - - - - - - -
GREEN 7 22 Apr 2021 12:00 119 - - - - - - -
GREEN 8 22 Apr 2021 18:00 108 - - - - - - -
GREEN 9 23 Apr 2021 00:00 101 - - - - - - -
GREEN 10 23 Apr 2021 06:00 72 - - - - - - -
GREEN 11 23 Apr 2021 12:00 76 - - - - - - -
GREEN 12 23 Apr 2021 18:00 68 - - - - - - -
GREEN 13 24 Apr 2021 00:00 54 - - - - - - -
GREEN 14 24 Apr 2021 06:00 68 - - - - - - -
GREEN 15 24 Apr 2021 12:00 58 - - - - - - -
GREEN 16 24 Apr 2021 18:00 50 - - - - - - -
GREEN 17 25 Apr 2021 00:00 40 - - - - - - -
GREEN 18 25 Apr 2021 06:00 47 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall

527 mm

Up to 490 thousand can be affected by rain higher than 100mm (see SSHS)





Rain exposed population - AoIs

Estimations based on the bulletin of 25 Apr 2021 06:00 UTC (Overall situation)
LevelCountryPopulation 
250-500 mmSeychelles138 
100-250 mmTanzania, Seychelles, Mozambique, Madagascar486,815
+
Tanzania301,492 
Seychelles357 
Mozambique48,637 
Madagascar136,329 
50-100 mmTanzania, Seychelles, Mozambique, Malawi, Comoros, Mayotte, Madagascar5,709,654
+
Tanzania3,907,542 
Seychelles203 
Mozambique699,019 
Malawi13,858 
Comoros673,663 
Mayotte217,012 
Madagascar198,357 

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
Blue 1 21 Apr 2021 00:00 72 - - - - - - -
Blue 2 21 Apr 2021 06:00 64 -
- - - - - Seychelles
Blue 3 21 Apr 2021 12:00 129 -
- - - - - Seychelles
Blue 4 21 Apr 2021 18:00 136 -
- - - - - Seychelles
Blue 5 22 Apr 2021 00:00 210 - - - - - - -
Blue 6 22 Apr 2021 06:00 208 - - - - - - -
Blue 7 22 Apr 2021 12:00 174 - - - - - - -
Blue 8 22 Apr 2021 18:00 190 - - - - - - -
Blue 9 23 Apr 2021 00:00 106 - - - - - - -
Blue 10 23 Apr 2021 06:00 57 - - - - - - -
Blue 11 23 Apr 2021 12:00 62 - - - - - - -
Blue 12 23 Apr 2021 18:00 14 - - - - - - -
Blue 13 24 Apr 2021 00:00 22 - - - - - - -
Blue 14 24 Apr 2021 06:00 79 - - - - - - -
Blue 15 24 Apr 2021 12:00 19 - - - - - - -
Blue 16 24 Apr 2021 18:00 22 - - - - - - -
Blue 17 25 Apr 2021 00:00 86 -
- - - - - Mozambique, Madagascar
Blue 18 25 Apr 2021 06:00 183 -
- - - - - Tanzania, Mozambique, Malawi




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 25 Apr 2021 06:00 UTC (Overall situation)
    
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 07:45 Ambalihabe Madagascar  0.2
22 Apr 2021 07:45 Ambodizaotra Madagascar  0.2
22 Apr 2021 07:45 Antotoro Madagascar  0.2
22 Apr 2021 07:45 Ampohana Madagascar  0.2
22 Apr 2021 12:45 Magawa Tanzania  0.1
22 Apr 2021 12:45 Msindaji Tanzania  0.1
22 Apr 2021 12:45 Mchungu Tanzania  0.1
21 Apr 2021 14:30 Taandani Tanzania  0.1
21 Apr 2021 14:30 Chekea Tanzania  0.1
21 Apr 2021 14:30 Uchangani Tanzania  0.1
21 Apr 2021 14:30 Bopwe Tanzania  0.1
21 Apr 2021 14:30 Chake Tanzania  0.1
21 Apr 2021 14:30 Ziwani Tanzania  0.1
21 Apr 2021 14:30 Kijichame Tanzania  0.1
21 Apr 2021 14:30 Dutani Tanzania  0.1
21 Apr 2021 14:30 Hurumuzi Tanzania  0.1
21 Apr 2021 14:30 Vumba Tanzania  0.1
21 Apr 2021 14:30 Chokaningayo Tanzania  0.1
22 Apr 2021 13:00 Kisiju Tanzania  0.1
22 Apr 2021 13:00 Dondo Tanzania  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
21 Apr 2021 03:15 Betsimiranja Madagascar  0.1
21 Apr 2021 03:15 Ambatonjanahary Madagascar  0.1
21 Apr 2021 03:15 Ambinanililabe Madagascar  0.1
21 Apr 2021 03:15 Antseranana Madagascar  0.1
21 Apr 2021 03:15 Anjiabe Madagascar  0.1
21 Apr 2021 03:15 Amoronjia-Orangea Madagascar  0.1
22 Apr 2021 13:00 Kiombani Tanzania  0.1
21 Apr 2021 05:30 Antanamazava Madagascar  0.1
21 Apr 2021 05:30 Ambatomainty Madagascar  0.1
21 Apr 2021 05:30 Manehoko Madagascar  0.1
21 Apr 2021 05:30 Antanimandry Madagascar  0.1
21 Apr 2021 05:30 Anjabe Madagascar  0.1
21 Apr 2021 05:30 Andranomena Madagascar  0.1
21 Apr 2021 19:45 Marovoha Madagascar  0.1
21 Apr 2021 19:45 Ampitily Madagascar  0.1
21 Apr 2021 19:45 Ambalatsingy Madagascar  0.1
21 Apr 2021 19:45 Singalana Madagascar  0.1
21 Apr 2021 19:45 Antaribao Madagascar  0.1
21 Apr 2021 19:45 Ambodibonara Madagascar  0.1
21 Apr 2021 19:45 Tsaratanana Madagascar  0.1
21 Apr 2021 19:45 Ampasindava Madagascar  0.1
21 Apr 2021 19:45 Ankinganifahatelo Madagascar  0.1
21 Apr 2021 05:45 Nosy Faly Madagascar  0.1
21 Apr 2021 05:45 Ambato Madagascar  0.1
21 Apr 2021 05:45 Ambaliha Madagascar  0.1
21 Apr 2021 15:45 Kipara Tanzania  0.1
21 Apr 2021 15:45 Dar es Salaam Tanzania  0.1
21 Apr 2021 15:45 Msasani Tanzania  0.1
21 Apr 2021 15:45 Magogoni Tanzania  0.1
21 Apr 2021 15:45 Mjimwema Tanzania  0.1
21 Apr 2021 15:45 Mboamaji Tanzania  0.1
21 Apr 2021 15:45 Bandarini Tanzania  0.1
21 Apr 2021 15:45 Kutani Tanzania  0.1
24 Apr 2021 18:00 Mbwera Tanzania  0.1
22 Apr 2021 12:45 Nyambati Tanzania  0.1
22 Apr 2021 12:45 Salale 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 03:15 Andasoa Madagascar  0.1
21 Apr 2021 03:15 Ampasindava Madagascar  0.1
21 Apr 2021 13:15 Matapatapa 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 05:30 Donge Tanzania  0.1
21 Apr 2021 05:30 Mkokotoni Tanzania  0.1
21 Apr 2021 05:30 Bwereu Tanzania  0.1
21 Apr 2021 05:30 Banda Kuu Tanzania  0.1
21 Apr 2021 05:30 Gazija Tanzania  0.1
24 Apr 2021 18:15 Kiechuru Tanzania  0.1