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 Indonesia, Australia
Exposed population No people in Category 1 or higher
Maximum wind speed 112 km/h
Maximum storm surge 0.3 m (05 Apr 16:15 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 112 km/h 0.3 m 291 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

119 km/h

Up to 8 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 05 Apr 2021 12:00 UTC
CategoryCountryPopulation 
Tropical StormIndonesia, Australia8354
+
Indonesia8315 
Australia39 

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, Australia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 05 Apr 2021 12:00 UTC
LevelCountryPopulation 
100-250 mmIndonesia335420 
50-100 mmIndonesia, Timor-Leste15505712
+
Indonesia15466241 
Timor-Leste39471 

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 12:00 673 340 thousand
- - - - Indonesia, Timor-Leste




Impact estimation for the next 72h

StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Karratha, Australia. This height is estimated for 05 Apr 2021 16:15 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.

Calculation based on the bulletin of 05 Apr 2021 12:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
05 Apr 2021 16:15 Karratha Australia  0.3
05 Apr 2021 20:45 Broome Australia  0.3
05 Apr 2021 17:30 Mardie Australia  0.3
05 Apr 2021 16:15 Dampier Australia  0.3
05 Apr 2021 16:30 Wickham Australia  0.3
05 Apr 2021 15:45 Point Samson Australia  0.3
05 Apr 2021 15:45 Cossack Australia  0.3
05 Apr 2021 20:30 Thangoo Australia  0.3
05 Apr 2021 14:00 Kollan I Australia  0.3
05 Apr 2021 21:15 Pender Australia  0.2
05 Apr 2021 16:00 Port Hedland Australia  0.2
05 Apr 2021 16:00 Wedgefield Australia  0.2
05 Apr 2021 12:30 Ngalu Indonesia  0.2
05 Apr 2021 12:30 Tapil Indonesia  0.2
05 Apr 2021 18:15 Kennedys Cottage Australia  0.2
05 Apr 2021 18:15 Waterbank Australia  0.2
05 Apr 2021 12:15 Merapo Indonesia  0.2
05 Apr 2021 12:15 Boedae Indonesia  0.2
05 Apr 2021 12:00 Derby Australia  0.2
05 Apr 2021 16:30 East Lewis I Australia  0.2
05 Apr 2021 20:30 Vasse Australia  0.2
05 Apr 2021 20:30 Broadwater Australia  0.2
05 Apr 2021 20:30 Busselton Australia  0.2
05 Apr 2021 20:30 Wonnerup Australia  0.2
05 Apr 2021 20:30 Ludlow Australia  0.2
05 Apr 2021 14:00 Kencong Indonesia  0.2
05 Apr 2021 14:00 Lodjedjer Indonesia  0.2
05 Apr 2021 15:30 Maringgai Indonesia  0.2
05 Apr 2021 16:30 Kiluan Indonesia  0.2
05 Apr 2021 16:30 Kekatang Indonesia  0.2
05 Apr 2021 16:30 Menango Indonesia  0.2
05 Apr 2021 12:00 Aplame Indonesia  0.2
05 Apr 2021 12:00 Woereh Indonesia  0.2
05 Apr 2021 12:00 Lewohajong Indonesia  0.2
05 Apr 2021 12:00 Koekoewerang Indonesia  0.2
05 Apr 2021 12:00 Throng Indonesia  0.2
05 Apr 2021 12:00 Adoenara Indonesia  0.2
05 Apr 2021 12:00 Lamakera Indonesia  0.2
05 Apr 2021 12:00 Papelawe Indonesia  0.2
05 Apr 2021 12:00 Sagu Indonesia  0.2
05 Apr 2021 12:00 Wotanglolong Indonesia  0.2
05 Apr 2021 12:00 Lewokeling Indonesia  0.2
05 Apr 2021 12:00 Witihama Indonesia  0.2
05 Apr 2021 12:00 Boleng Indonesia  0.2
05 Apr 2021 12:00 Nereng Indonesia  0.2
05 Apr 2021 12:15 Ege Indonesia  0.2
05 Apr 2021 15:30 Balubuk Indonesia  0.2
05 Apr 2021 21:45 Klampok Indonesia  0.2
05 Apr 2021 21:45 Tegal Indonesia  0.2
05 Apr 2021 21:45 Wanasari Indonesia  0.2
05 Apr 2021 14:30 Kramat Indonesia  0.2
05 Apr 2021 14:30 Cengkarengbelakang Indonesia  0.2
05 Apr 2021 14:30 Tipar Indonesia  0.2
05 Apr 2021 16:30 Tandjungkarang Indonesia  0.2
05 Apr 2021 16:30 Telukbetung Indonesia  0.2
05 Apr 2021 16:30 Tarahan Indonesia  0.2
05 Apr 2021 12:00 Lewoleba Indonesia  0.2
05 Apr 2021 12:00 Lamanuna Indonesia  0.2
05 Apr 2021 15:15 Merak Indonesia  0.2
05 Apr 2021 15:15 Domas Indonesia  0.2
05 Apr 2021 16:15 Ketapang Indonesia  0.2
05 Apr 2021 23:30 Maoe Ndai Indonesia  0.2
05 Apr 2021 23:30 Manoeran Indonesia  0.2
05 Apr 2021 23:30 Pigadjawa Indonesia  0.2
05 Apr 2021 23:30 Nangaboa Indonesia  0.2
05 Apr 2021 23:30 Waroe Kasoe Indonesia  0.2
05 Apr 2021 23:30 Wassa Indonesia  0.2
05 Apr 2021 13:00 Kota Boddo Indonesia  0.2
05 Apr 2021 13:00 Wawarei Indonesia  0.2
05 Apr 2021 13:00 Seba Indonesia  0.2
05 Apr 2021 13:00 Below Indonesia  0.2
05 Apr 2021 13:00 Baah Indonesia  0.2
05 Apr 2021 12:15 Kotahawoe Indonesia  0.2
05 Apr 2021 16:15 Lakohembi Indonesia  0.2
05 Apr 2021 16:15 Lapatawang Indonesia  0.2
05 Apr 2021 16:15 Kirihei Indonesia  0.2
05 Apr 2021 16:15 Kampoeng Melolo Indonesia  0.2
05 Apr 2021 16:15 Melolo Indonesia  0.2
05 Apr 2021 16:15 Jawang Indonesia  0.2
05 Apr 2021 18:30 Pardoo Australia  0.2
05 Apr 2021 14:00 Oenggae Indonesia  0.2
05 Apr 2021 14:00 Nordale Indonesia  0.2
05 Apr 2021 14:00 Korlo Indonesia  0.2
05 Apr 2021 14:00 Suaha Indonesia  0.2
05 Apr 2021 14:00 Keoen Indonesia  0.2
05 Apr 2021 14:00 Daeoerendale Indonesia  0.2
05 Apr 2021 14:00 Akle Indonesia  0.2
05 Apr 2021 14:00 Eahun Indonesia  0.2
05 Apr 2021 14:00 Pepela Indonesia  0.2
05 Apr 2021 14:00 Roti Indonesia  0.2
05 Apr 2021 14:00 Batuidu Indonesia  0.2
05 Apr 2021 14:00 Usulain Indonesia  0.2
05 Apr 2021 14:00 Oisina Indonesia  0.2
05 Apr 2021 14:00 Tablolong Indonesia  0.2
05 Apr 2021 15:45 Latuna Indonesia  0.2
05 Apr 2021 15:45 Bagang Indonesia  0.2
05 Apr 2021 15:45 Toebal Indonesia  0.2
05 Apr 2021 15:45 Noehawaila Indonesia  0.2
05 Apr 2021 15:45 Tamelabang Indonesia  0.2
05 Apr 2021 15:45 Kabir Indonesia  0.2
05 Apr 2021 15:45 Maria Indonesia  0.2
05 Apr 2021 15:45 Alor-kecil Indonesia  0.2
05 Apr 2021 15:15 Bandaragung Indonesia  0.2
05 Apr 2021 15:15 Tjampang Indonesia  0.2
05 Apr 2021 15:15 Waiharoe Indonesia  0.2
05 Apr 2021 15:15 Belimbing Indonesia  0.2
05 Apr 2021 15:00 Tanara Indonesia  0.1
05 Apr 2021 16:30 Ketapang Indonesia  0.1
05 Apr 2021 22:45 Adipala Indonesia  0.1
05 Apr 2021 22:45 Binangoen Indonesia  0.1
05 Apr 2021 22:45 Ajah Indonesia  0.1
05 Apr 2021 13:30 Muntjar Indonesia  0.1
05 Apr 2021 13:30 Blimbing Indonesia  0.1
05 Apr 2021 13:30 Dadapan Indonesia  0.1
05 Apr 2021 13:30 Banyuwangi Indonesia  0.1
05 Apr 2021 13:30 Banjuwangi Indonesia  0.1
05 Apr 2021 13:30 Gilimanuk Indonesia  0.1
05 Apr 2021 13:30 Penginoeman Indonesia  0.1
05 Apr 2021 13:30 Belimbingsari Indonesia  0.1
05 Apr 2021 13:30 Tjandikesuma Indonesia  0.1
05 Apr 2021 15:15 Pedes Indonesia  0.1
05 Apr 2021 21:30 Mangkang-Kulan Indonesia  0.1
05 Apr 2021 21:30 Djomblang Indonesia  0.1
05 Apr 2021 21:30 Semarang Indonesia  0.1
05 Apr 2021 21:30 Karangroto Indonesia  0.1
05 Apr 2021 12:30 Oetefoe-besar Indonesia  0.1
05 Apr 2021 12:30 Besdale Indonesia  0.1
05 Apr 2021 12:30 Silain Indonesia  0.1
05 Apr 2021 12:30 Oetefoe-ketjil Indonesia  0.1
05 Apr 2021 12:30 Butuinan Indonesia  0.1
05 Apr 2021 12:30 Hala Indonesia  0.1
05 Apr 2021 12:30 Oeboeah Indonesia  0.1
05 Apr 2021 12:30 Hansisi Indonesia  0.1
05 Apr 2021 12:30 Naioni Indonesia  0.1
05 Apr 2021 12:30 Tenau Indonesia  0.1
05 Apr 2021 12:30 Manoelairoti Indonesia  0.1
05 Apr 2021 12:30 Namosain Indonesia  0.1
05 Apr 2021 12:30 Kupang Indonesia  0.1
05 Apr 2021 12:30 Soelamoe Indonesia  0.1
05 Apr 2021 12:30 Maoelafa Indonesia  0.1
05 Apr 2021 12:30 Pitai Indonesia  0.1
05 Apr 2021 15:15 Sungaibuntu Indonesia  0.1
05 Apr 2021 12:00 Wara Indonesia  0.1
05 Apr 2021 12:00 Toronaroe Indonesia  0.1
05 Apr 2021 16:00 Umbulan Pepanggar Indonesia  0.1
05 Apr 2021 16:30 Bakau Indonesia  0.1
05 Apr 2021 15:30 Tjikawung Indonesia  0.1
05 Apr 2021 15:30 Sumur Indonesia  0.1
05 Apr 2021 15:30 Aerdjeruk Indonesia  0.1
05 Apr 2021 16:00 Kalianda Indonesia  0.1
05 Apr 2021 14:45 Pasirputih Indonesia  0.1
05 Apr 2021 14:45 Muaratjilamaja Indonesia  0.1
05 Apr 2021 13:30 Tambajangan Indonesia  0.1
05 Apr 2021 13:30 Kajuwaru Indonesia  0.1
05 Apr 2021 17:45 Ah Chong I Australia  0.1
05 Apr 2021 23:15 Losan Indonesia  0.1
05 Apr 2021 16:30 Soega Indonesia  0.1
05 Apr 2021 23:30 Waingapu Indonesia  0.1
05 Apr 2021 23:30 Matawai Indonesia  0.1
05 Apr 2021 23:30 Pajeti Indonesia  0.1
05 Apr 2021 12:00 Lamararap Indonesia  0.1
05 Apr 2021 18:15 Onslow Australia  0.1
05 Apr 2021 16:30 Kolitjaah Indonesia  0.1
05 Apr 2021 16:30 Tjiteureup Indonesia  0.1
05 Apr 2021 16:30 Labuhan Indonesia  0.1
05 Apr 2021 16:30 Kaduperasi Indonesia  0.1
05 Apr 2021 16:15 Anjer-Kidu Indonesia  0.1
05 Apr 2021 13:00 Manikin Indonesia  0.1
05 Apr 2021 13:00 Pariti Indonesia  0.1
05 Apr 2021 13:00 Naimoeti Indonesia  0.1
05 Apr 2021 17:30 Lalindi Indonesia  0.1
05 Apr 2021 17:30 Manoekangga Indonesia  0.1
05 Apr 2021 21:15 Kendal Indonesia  0.1
05 Apr 2021 23:00 Chilachap Indonesia  0.1
05 Apr 2021 23:30 Maoedoeloeng Indonesia  0.1
05 Apr 2021 13:15 Sape Indonesia  0.1
05 Apr 2021 13:15 Badjo Indonesia  0.1
05 Apr 2021 21:15 Petaroekan Indonesia  0.1
05 Apr 2021 21:15 Sigedang Indonesia  0.1
05 Apr 2021 21:15 Pekalongan Indonesia  0.1
05 Apr 2021 20:30 Dalyellup Australia  0.1
05 Apr 2021 21:45 Bulakamba Indonesia  0.1
05 Apr 2021 21:00 Pemalang Indonesia  0.1
05 Apr 2021 21:45 Wedung Indonesia  0.1
05 Apr 2021 21:45 Kedungmalang Indonesia  0.1
05 Apr 2021 15:30 Pahanuma Indonesia  0.1
05 Apr 2021 15:30 Belowa Indonesia  0.1
05 Apr 2021 23:30 Cilancang Indonesia  0.1
05 Apr 2021 23:30 Cirebon Indonesia  0.1
05 Apr 2021 15:45 Tanahkadukung Indonesia  0.1
05 Apr 2021 15:45 Baing Indonesia  0.1
05 Apr 2021 21:00 Sidja Indonesia  0.1
05 Apr 2021 13:45 Brassan Indonesia  0.1
05 Apr 2021 13:45 Banjoebiroe Indonesia  0.1
05 Apr 2021 13:45 Cupel Indonesia  0.1
05 Apr 2021 13:45 Banjuwedang Indonesia  0.1
05 Apr 2021 13:45 Prancak Indonesia  0.1
05 Apr 2021 13:45 Negara Indonesia  0.1
05 Apr 2021 20:45 Bunbury Australia  0.1
05 Apr 2021 20:45 Binningup Australia  0.1
05 Apr 2021 20:45 Myalup Australia  0.1
05 Apr 2021 20:45 Picton Australia  0.1
05 Apr 2021 20:45 Eaton Australia  0.1
05 Apr 2021 20:45 Burragenup Australia  0.1
05 Apr 2021 20:45 Australind Australia  0.1
05 Apr 2021 15:45 Guring Indonesia  0.1
05 Apr 2021 15:45 Kota Agung Indonesia  0.1
05 Apr 2021 23:00 Petanahan Indonesia  0.1
05 Apr 2021 15:15 Karangberak Indonesia  0.1
05 Apr 2021 15:15 Tampang Indonesia  0.1
05 Apr 2021 15:15 Sawangbalak Indonesia  0.1
05 Apr 2021 15:15 Putih Indonesia  0.1
05 Apr 2021 12:00 Tampoena Wo Indonesia  0.1
05 Apr 2021 12:00 Wasalangka Indonesia  0.1
05 Apr 2021 20:30 Bugel Indonesia  0.1
05 Apr 2021 21:15 Jepara Indonesia  0.1
05 Apr 2021 21:15 Karanggondang Indonesia  0.1
05 Apr 2021 15:30 Mboe Eain Indonesia  0.1
05 Apr 2021 15:30 Nembrala Indonesia  0.1
05 Apr 2021 15:30 Abuan Indonesia  0.1
05 Apr 2021 15:30 Ulua Indonesia  0.1
05 Apr 2021 15:30 Toedameda Indonesia  0.1
05 Apr 2021 15:30 Batutuah Indonesia  0.1
05 Apr 2021 15:30 Oeseda Indonesia  0.1
05 Apr 2021 14:30 Sindangsari Indonesia  0.1
05 Apr 2021 14:30 Cijulang Indonesia  0.1
05 Apr 2021 14:30 Cikalong Indonesia  0.1
05 Apr 2021 14:30 Pangadaran Indonesia  0.1
05 Apr 2021 12:15 Gunyulgup Australia  0.1
05 Apr 2021 12:15 Yallingup Australia  0.1
05 Apr 2021 12:15 Dunsborough Australia  0.1
05 Apr 2021 12:15 Quindalup Australia  0.1
05 Apr 2021 18:45 Paraing Liang Indonesia  0.1
05 Apr 2021 12:15 Condon Australia  0.1
05 Apr 2021 16:15 Poeloedae Indonesia  0.1