Overall Green alert Tropical Cyclone for SEROJA-21
in Australia, Indonesia

Impact

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

Meteorological source ECMWF
Exposed countries Australia
Exposed population No people in Category 1 or higher
Maximum wind speed 119 km/h
Maximum storm surge 2.0 m (11 Apr 09:00 UTC)
Vulnerability Low (Australia)

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 119 km/h 2.0 m 116 mm 0.5
ECMWF Overall 119 km/h 2.0 m 666 mm 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)



Wind exposed population - AoIs

Estimations based on the bulletin of 11 Apr 2021 00:00 UTC
CategoryCountryPopulation 
Tropical StormAustralia57735 

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert 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 04 Apr 2021 00:00 86 -
- - - - - Indonesia
GREEN 2 04 Apr 2021 12:00 101 -
- - - - - Indonesia
GREEN 3 05 Apr 2021 00:00 97 -
- - - - - Indonesia
GREEN 4 05 Apr 2021 12:00 112 -
- - - - - Indonesia
GREEN 5 06 Apr 2021 00:00 104 -
- - - - - Indonesia
GREEN 6 06 Apr 2021 12:00 68 - - - - - - -
GREEN 7 07 Apr 2021 00:00 97 - - - - - - -
GREEN 8 07 Apr 2021 12:00 90 - - - - - - -
GREEN 9 08 Apr 2021 00:00 94 - - - - - - -
GREEN 10 08 Apr 2021 12:00 86 - - - - - - -
GREEN 11 09 Apr 2021 00:00 104 - - - - - - -
GREEN 12 09 Apr 2021 12:00 83 - - - - - - -
GREEN 13 10 Apr 2021 00:00 104 - - - - - - -
GREEN 14 10 Apr 2021 12:00 108 - - - - - - -
GREEN 15 11 Apr 2021 00:00 119 -
- - - - - Australia




Impact estimation for the next 72h
Download:

Rainfall

666 mm

Up to 5 thousand can be affected by rain higher than 100mm (see SSHS)





Rain exposed population - AoIs

Estimations based on the bulletin of 11 Apr 2021 00:00 UTC
LevelCountryPopulation 
100-250 mmIndonesia4566 
50-100 mmIndonesia, Australia1234014
+
Indonesia1162706 
Australia71308 

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 04 Apr 2021 00:00 298 500 thousand
- - - Indonesia, Timor-Leste
Blue 2 04 Apr 2021 12:00 341 530 thousand
- - - Timor-Leste, Indonesia
Blue 3 05 Apr 2021 00:00 222 60 thousand
- - - - Indonesia
Blue 4 05 Apr 2021 12:00 291 2 thousand
- - - - Indonesia
Blue 5 06 Apr 2021 00:00 287 -
- - - - - Indonesia
Blue 6 06 Apr 2021 12:00 363 - - - - - - -
Blue 7 07 Apr 2021 00:00 271 -
- - - - - Indonesia
Blue 8 07 Apr 2021 12:00 455 - - - - - - -
Blue 9 08 Apr 2021 00:00 284 -
- - - - - Indonesia, Timor-Leste
Blue 10 08 Apr 2021 12:00 208 - - - - - - -
Blue 11 09 Apr 2021 00:00 134 -
- - - - - Indonesia
Blue 12 09 Apr 2021 12:00 193 - - - - - - -
Blue 13 10 Apr 2021 00:00 189 -
- - - - - Indonesia
Blue 14 10 Apr 2021 12:00 137 - - - - - - -
Blue 15 11 Apr 2021 00:00 429 5 thousand
- - - - Indonesia, Australia




Impact estimation for the next 72h

StormSurge

2 m

The maximum Storm surge height is  2.0m in Useless Loop, Australia. This height is estimated for 11 Apr 2021 09:00 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.

Calculation based on the bulletin of 11 Apr 2021 00:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
11 Apr 2021 09:00 Useless Loop Australia  2.0
11 Apr 2021 10:45 Tamala Australia  1.8
11 Apr 2021 09:15 Dirk Hartog Australia  1.7
11 Apr 2021 11:45 Nanga Australia  1.5
11 Apr 2021 14:30 Hamelin Pool Australia  1.5
11 Apr 2021 14:30 Hamelin Australia  1.5
11 Apr 2021 11:45 Carrarang Australia  1.5
11 Apr 2021 13:15 Gladstone Australia  1.4
11 Apr 2021 09:15 Denham Australia  1.4
11 Apr 2021 13:00 Shark Bay Australia  1.2
11 Apr 2021 13:00 Monkey Mia Australia  1.2
11 Apr 2021 11:30 Kalbarri Australia  0.9
11 Apr 2021 13:30 Geraldton Australia  0.8
11 Apr 2021 13:30 Drummond Cove Australia  0.8
11 Apr 2021 13:30 Popes Landing Australia  0.8
11 Apr 2021 13:30 Waggrakine Australia  0.8
11 Apr 2021 12:00 Gregory Australia  0.8
11 Apr 2021 12:00 Lynton Australia  0.8
11 Apr 2021 12:30 Horrocks Australia  0.8
11 Apr 2021 15:00 Denison Australia  0.7
11 Apr 2021 15:00 Port Denison Australia  0.7
11 Apr 2021 15:00 Dongara Australia  0.7
11 Apr 2021 13:30 Greenough Australia  0.7
11 Apr 2021 07:15 Carnarvon Australia  0.6
11 Apr 2021 15:00 Illawong Australia  0.5
11 Apr 2021 15:00 Coolimba Australia  0.5
11 Apr 2021 15:15 Leeman Australia  0.4
11 Apr 2021 05:00 Quobba Australia  0.4
11 Apr 2021 15:15 Green Head Australia  0.3
11 Apr 2021 06:15 Cape Cuvier Australia  0.3
11 Apr 2021 05:00 Learmonth Australia  0.3
11 Apr 2021 15:45 Jurien Australia  0.3
11 Apr 2021 05:45 Warroora Australia  0.3
11 Apr 2021 03:45 Gnaraloo Australia  0.3
11 Apr 2021 16:15 Cervantes Australia  0.3
11 Apr 2021 18:30 Vasse Australia  0.2
11 Apr 2021 18:30 Broadwater Australia  0.2
11 Apr 2021 18:30 Busselton Australia  0.2
11 Apr 2021 18:30 Wonnerup Australia  0.2
11 Apr 2021 18:30 Ludlow Australia  0.2
13 Apr 2021 13:00 Derby Australia  0.2
13 Apr 2021 14:30 Maringgai Indonesia  0.2
11 Apr 2021 18:00 Safety Bay Australia  0.2
11 Apr 2021 18:00 Rockingham Australia  0.2
11 Apr 2021 18:00 Fremantle Australia  0.2
11 Apr 2021 18:00 Warnbro Australia  0.2
11 Apr 2021 18:00 North Fremantle Australia  0.2
11 Apr 2021 18:00 East Fremantle Australia  0.2
11 Apr 2021 18:00 Coogee Australia  0.2
11 Apr 2021 18:00 Spearwood Australia  0.2
11 Apr 2021 18:00 Wattleup Australia  0.2
11 Apr 2021 18:30 Gunyulgup Australia  0.2
11 Apr 2021 18:30 Yallingup Australia  0.2
11 Apr 2021 18:30 Dunsborough Australia  0.2
11 Apr 2021 18:30 Quindalup Australia  0.2
13 Apr 2021 14:45 Kandangan Indonesia  0.2
13 Apr 2021 14:45 Gresik Indonesia  0.2
13 Apr 2021 14:45 Pangkalan Indonesia  0.2
13 Apr 2021 14:45 Batoe Porong Indonesia  0.2
13 Apr 2021 14:45 Kebanjar Indonesia  0.2
12 Apr 2021 16:00 Kramat Indonesia  0.2
12 Apr 2021 16:00 Cengkarengbelakang Indonesia  0.2
12 Apr 2021 16:00 Tipar Indonesia  0.2
11 Apr 2021 18:30 Dalyellup Australia  0.2
11 Apr 2021 18:30 Bunbury Australia  0.2
11 Apr 2021 18:30 Picton Australia  0.2
13 Apr 2021 03:00 Domas Indonesia  0.2
13 Apr 2021 03:00 Tanara Indonesia  0.2
13 Apr 2021 03:00 Ketapang Indonesia  0.2
11 Apr 2021 18:15 Binningup Australia  0.2
11 Apr 2021 18:15 Myalup Australia  0.2
11 Apr 2021 18:15 Eaton Australia  0.2
11 Apr 2021 18:15 Burragenup Australia  0.2
11 Apr 2021 18:15 Australind Australia  0.2
11 Apr 2021 18:00 Peelhurst Australia  0.2
11 Apr 2021 18:00 Singleton Australia  0.2
11 Apr 2021 18:00 Karnup Australia  0.2
13 Apr 2021 20:30 Broome Australia  0.2
11 Apr 2021 16:00 Lancelin Australia  0.2
13 Apr 2021 22:00 Kendal Indonesia  0.2
13 Apr 2021 22:00 Mangkang-Kulan Indonesia  0.2
13 Apr 2021 22:00 Djomblang Indonesia  0.2
13 Apr 2021 22:00 Semarang Indonesia  0.2
13 Apr 2021 22:00 Karangroto Indonesia  0.2
11 Apr 2021 01:45 Exmouth Australia  0.2
13 Apr 2021 21:15 Karangampel Indonesia  0.2
13 Apr 2021 21:15 Cilancang Indonesia  0.2
13 Apr 2021 21:15 Cirebon Indonesia  0.2
11 Apr 2021 17:45 Falcon Australia  0.2
11 Apr 2021 17:45 Mandurah Australia  0.2
13 Apr 2021 21:00 Losan Indonesia  0.2
11 Apr 2021 17:15 Mosman Park Australia  0.2
11 Apr 2021 17:15 Cottesloe Australia  0.2
11 Apr 2021 17:15 Peppermint Grove Australia  0.2
11 Apr 2021 17:15 Swanbourne Australia  0.2
11 Apr 2021 17:15 Claremont Australia  0.2
11 Apr 2021 17:15 Bicton Australia  0.2
13 Apr 2021 22:00 Pekalongan Indonesia  0.2
13 Apr 2021 22:00 Sidja Indonesia  0.2
11 Apr 2021 05:00 Onslow Australia  0.2
13 Apr 2021 21:30 Bulakamba Indonesia  0.2
11 Apr 2021 17:45 Mullalloo Beach Australia  0.2
11 Apr 2021 17:45 North Beach Australia  0.2
11 Apr 2021 17:45 Scarborough Australia  0.2
11 Apr 2021 18:00 Seabird Australia  0.2
11 Apr 2021 18:00 Guilderton Australia  0.2
12 Apr 2021 15:45 Balubuk Indonesia  0.2
13 Apr 2021 20:30 Thangoo Australia  0.2
11 Apr 2021 19:15 Two Rocks Australia  0.2
11 Apr 2021 19:15 Yanchep Australia  0.2
11 Apr 2021 19:15 Quinns Rock Australia  0.2
11 Apr 2021 06:45 Glenroy Australia  0.2
13 Apr 2021 14:15 Baliga Indonesia  0.2
13 Apr 2021 14:15 Laboean Indonesia  0.2
13 Apr 2021 21:45 Wedung Indonesia  0.2
13 Apr 2021 21:45 Kedungmalang Indonesia  0.2
13 Apr 2021 21:15 Klampok Indonesia  0.2
13 Apr 2021 02:45 Merak Indonesia  0.2
13 Apr 2021 16:00 Eucla Motel Australia  0.2
13 Apr 2021 21:30 Sigedang Indonesia  0.2
13 Apr 2021 21:45 Bugel Indonesia  0.2
13 Apr 2021 21:15 Petaroekan Indonesia  0.2
13 Apr 2021 13:15 Sidoardjo Indonesia  0.2
13 Apr 2021 15:15 Ketapang Indonesia  0.2
13 Apr 2021 22:00 Wanasari Indonesia  0.2
13 Apr 2021 22:00 Pemalang Indonesia  0.2
13 Apr 2021 21:30 Jepara Indonesia  0.2
13 Apr 2021 21:30 Karanggondang Indonesia  0.2
13 Apr 2021 22:45 Tegal Indonesia  0.2
11 Apr 2021 05:30 Cardabia Australia  0.2
13 Apr 2021 20:30 Taju Indonesia  0.2
13 Apr 2021 20:30 Bulumanis Indonesia  0.2
13 Apr 2021 20:30 Batangan Indonesia  0.2
13 Apr 2021 20:30 Rembang Indonesia  0.2
13 Apr 2021 13:00 Pasuruan Indonesia  0.2
11 Apr 2021 19:45 Gracetown Australia  0.2
13 Apr 2021 13:15 Sumberkuning Indonesia  0.2
13 Apr 2021 15:30 Bakau Indonesia  0.2
13 Apr 2021 21:00 Indramaju Indonesia  0.2
13 Apr 2021 15:15 Pedes Indonesia  0.2
12 Apr 2021 14:15 Bayeman Indonesia  0.2
13 Apr 2021 16:15 Sidaju Indonesia  0.2
13 Apr 2021 15:15 Sungaibuntu Indonesia  0.2
13 Apr 2021 12:45 Probolinggo Indonesia  0.2
13 Apr 2021 12:45 Gending Indonesia  0.2
13 Apr 2021 12:45 Kraksaan Indonesia  0.2
12 Apr 2021 06:45 Blimbing Indonesia  0.2
12 Apr 2021 06:45 Dadapan Indonesia  0.2
12 Apr 2021 06:45 Banyuwangi Indonesia  0.2
12 Apr 2021 06:45 Banjuwangi Indonesia  0.2
12 Apr 2021 06:45 Soega Indonesia  0.2
12 Apr 2021 06:45 Gilimanuk Indonesia  0.2
12 Apr 2021 06:45 Penginoeman Indonesia  0.2
12 Apr 2021 06:45 Belimbingsari Indonesia  0.2
12 Apr 2021 06:45 Tjandikesuma Indonesia  0.2
13 Apr 2021 13:30 Sampang Indonesia  0.2
13 Apr 2021 21:15 Karangsari Indonesia  0.1
13 Apr 2021 14:15 Karagajar Indonesia  0.1
13 Apr 2021 03:00 Pasirputih Indonesia  0.1
13 Apr 2021 03:00 Muaratjilamaja Indonesia  0.1
13 Apr 2021 15:30 Ambunten-timu Indonesia  0.1
13 Apr 2021 15:30 Belukares Indonesia  0.1
13 Apr 2021 15:30 Sumenep Indonesia  0.1
13 Apr 2021 13:30 Galis Indonesia  0.1
13 Apr 2021 14:30 Prenduan Indonesia  0.1
13 Apr 2021 14:30 Djate Indonesia  0.1
13 Apr 2021 14:30 Bluto Indonesia  0.1
13 Apr 2021 14:30 Saroka Indonesia  0.1
13 Apr 2021 14:30 Bundan Indonesia  0.1
13 Apr 2021 15:30 Tlagabiru Indonesia  0.1
13 Apr 2021 15:30 Banjoeates Indonesia  0.1
13 Apr 2021 15:30 Ketapang Indonesia  0.1
13 Apr 2021 15:30 Kelapang Indonesia  0.1
13 Apr 2021 14:30 Gedugan Indonesia  0.1
13 Apr 2021 14:15 Besuki Indonesia  0.1
13 Apr 2021 17:45 Plosokere Indonesia  0.1
13 Apr 2021 17:45 Djenu Indonesia  0.1
13 Apr 2021 17:45 Tuban Indonesia  0.1
13 Apr 2021 17:45 Semanding Indonesia  0.1
13 Apr 2021 17:45 Podang Indonesia  0.1
13 Apr 2021 17:45 Brondong Indonesia  0.1
13 Apr 2021 17:00 Aermata Indonesia  0.1
13 Apr 2021 17:00 Klampis Indonesia  0.1
13 Apr 2021 17:00 Sapulu Indonesia  0.1
13 Apr 2021 14:00 Mandingan Indonesia  0.1
13 Apr 2021 16:15 Sokabana Indonesia  0.1
13 Apr 2021 13:15 Menango Indonesia  0.1
13 Apr 2021 13:15 Tandjungkarang Indonesia  0.1
13 Apr 2021 13:15 Telukbetung Indonesia  0.1
13 Apr 2021 13:15 Tarahan Indonesia  0.1
11 Apr 2021 01:00 Ningaloo Australia  0.1
13 Apr 2021 16:00 Batuputihkenek Indonesia  0.1
13 Apr 2021 14:00 Kajuwaru Indonesia  0.1
12 Apr 2021 23:00 Kekatang Indonesia  0.1
13 Apr 2021 14:00 Situbondo Indonesia  0.1
13 Apr 2021 14:30 Djangdjangan Indonesia  0.1
13 Apr 2021 14:15 Tambajangan Indonesia  0.1
13 Apr 2021 07:00 Muntjar Indonesia  0.1
13 Apr 2021 15:15 Lombang Indonesia  0.1
13 Apr 2021 13:15 Kiluan Indonesia  0.1
13 Apr 2021 15:15 Banraas Indonesia  0.1
13 Apr 2021 18:30 Padangan-wetan Indonesia  0.1
13 Apr 2021 18:30 Kalipang Indonesia  0.1
13 Apr 2021 18:30 Lemanbang Indonesia  0.1
13 Apr 2021 18:30 Tambakbaja Indonesia  0.1
14 Apr 2021 00:00 Cangkring Indonesia  0.1
13 Apr 2021 15:15 Anjer-Kidu Indonesia  0.1
12 Apr 2021 20:15 Kollan I Australia  0.1
13 Apr 2021 16:15 Tambak Indonesia  0.1
13 Apr 2021 16:15 Sangkapura Indonesia  0.1
13 Apr 2021 14:00 Kesambirampak Indonesia  0.1
13 Apr 2021 09:30 Kencong Indonesia  0.1
13 Apr 2021 09:30 Lodjedjer Indonesia  0.1
12 Apr 2021 04:15 Doombup Australia  0.1
14 Apr 2021 00:00 Kandanghaur Indonesia  0.1
13 Apr 2021 19:30 Lasem Indonesia  0.1
13 Apr 2021 14:00 Puteran Indonesia  0.1
12 Apr 2021 04:30 Esperance Australia  0.1
13 Apr 2021 18:15 Remen Indonesia  0.1
13 Apr 2021 14:45 Sokaramme Indonesia  0.1
11 Apr 2021 03:45 Mardie Australia  0.1
13 Apr 2021 14:45 Sonok Indonesia  0.1
14 Apr 2021 00:00 Patrol Indonesia  0.1
13 Apr 2021 13:45 Sumberwaru Indonesia  0.1
13 Apr 2021 14:45 Ardjasa Indonesia  0.1
13 Apr 2021 14:45 Songai Indonesia  0.1
11 Apr 2021 03:15 East Lewis I Australia  0.1
11 Apr 2021 03:15 Dampier Australia  0.1
13 Apr 2021 07:00 Banjoebiroe Indonesia  0.1
13 Apr 2021 07:00 Cupel Indonesia  0.1
13 Apr 2021 07:00 Banjuwedang Indonesia  0.1
13 Apr 2021 07:00 Prancak Indonesia  0.1
13 Apr 2021 07:00 Negara Indonesia  0.1
13 Apr 2021 14:30 Grajam Indonesia  0.1
13 Apr 2021 11:30 Makasar Indonesia  0.1
13 Apr 2021 11:30 Manda Indonesia  0.1
13 Apr 2021 14:30 Gajam Indonesia  0.1
13 Apr 2021 14:30 Katupat Indonesia  0.1
13 Apr 2021 15:00 Djoengkat Indonesia  0.1
13 Apr 2021 19:15 Waterbank Australia  0.1
13 Apr 2021 12:15 Enano Indonesia  0.1
13 Apr 2021 14:00 Brakas Indonesia  0.1
12 Apr 2021 12:00 Brassan Indonesia  0.1
13 Apr 2021 23:00 Tjikawung Indonesia  0.1
13 Apr 2021 23:00 Sumur Indonesia  0.1
13 Apr 2021 23:00 Aerdjeruk Indonesia  0.1
13 Apr 2021 19:15 Kennedys Cottage Australia  0.1
13 Apr 2021 11:45 Sanrabone Indonesia  0.1
13 Apr 2021 11:45 Tamalaba Indonesia  0.1
13 Apr 2021 11:45 Bisali Indonesia  0.1
13 Apr 2021 13:30 Sunberanjar Indonesia  0.1
13 Apr 2021 03:30 Guring Indonesia  0.1
13 Apr 2021 03:30 Kota Agung Indonesia  0.1
13 Apr 2021 04:30 Kalianda Indonesia  0.1
13 Apr 2021 11:15 Sindjai Indonesia  0.1
13 Apr 2021 11:15 Boku Indonesia  0.1
13 Apr 2021 08:30 Umbulan Pepanggar Indonesia  0.1
13 Apr 2021 11:45 Gailesong Indonesia  0.1
13 Apr 2021 12:30 Pringgabaja Indonesia  0.1
13 Apr 2021 12:30 Lombok Indonesia  0.1
13 Apr 2021 12:30 Sembelie Indonesia  0.1
13 Apr 2021 14:00 Goa-daja Indonesia  0.1
12 Apr 2021 22:30 Sindangsari Indonesia  0.1
12 Apr 2021 22:30 Cijulang Indonesia  0.1
12 Apr 2021 22:30 Cikalong Indonesia  0.1
12 Apr 2021 22:30 Pangadaran Indonesia  0.1
13 Apr 2021 07:15 Maoe Ndai Indonesia  0.1
13 Apr 2021 07:15 Manoeran Indonesia  0.1
13 Apr 2021 07:15 Pigadjawa Indonesia  0.1
13 Apr 2021 07:15 Nangaboa Indonesia  0.1
13 Apr 2021 07:15 Waroe Kasoe Indonesia  0.1
13 Apr 2021 07:15 Wassa Indonesia  0.1
13 Apr 2021 04:45 Kolitjaah Indonesia  0.1
13 Apr 2021 04:45 Tjiteureup Indonesia  0.1
13 Apr 2021 04:45 Labuhan Indonesia  0.1
13 Apr 2021 04:45 Kaduperasi Indonesia  0.1
13 Apr 2021 12:00 Sikeli Indonesia  0.1
13 Apr 2021 12:00 Tedubara Indonesia  0.1
13 Apr 2021 12:00 Pising Indonesia  0.1
13 Apr 2021 12:15 Karamak Indonesia  0.1
13 Apr 2021 07:45 Kabue Indonesia  0.1
13 Apr 2021 07:45 Belowa Indonesia  0.1
13 Apr 2021 07:45 Taoabi Indonesia  0.1
13 Apr 2021 07:45 Poelaudoea Indonesia  0.1
13 Apr 2021 12:45 Utan Indonesia  0.1
13 Apr 2021 12:45 Pato Pedoe Indonesia  0.1
13 Apr 2021 12:45 Sumbawa Besar Indonesia  0.1
13 Apr 2021 11:00 Balampangi Indonesia  0.1
13 Apr 2021 07:30 Eyre Australia  0.1