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 HWRF
Exposed countries Indonesia
Exposed population No people in Category 1 or higher
Maximum wind speed 104 km/h
Maximum storm surge 0.4 m (05 Apr 12:00 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
HWRF Current 104 km/h 0.4 m 169 mm 0.5
HWRF Overall 166 km/h 1.6 m 787 mm 0.5

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

Wind

166 km/h

Up to 110 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 StormIndonesia111,875 

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 12:00 83 -
- - - - - Indonesia
GREEN 2 04 Apr 2021 18:00 108 -
- - - - - Indonesia
GREEN 3 05 Apr 2021 00:00 115 -
- - - - - Indonesia
GREEN 4 05 Apr 2021 06:00 115 -
- - - - - Indonesia
GREEN 5 05 Apr 2021 12:00 169 -
- - - - - Indonesia




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 mmIndonesia9,771 
50-100 mmIndonesia187,348 

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 12:00 237 30 thousand
- - - - Indonesia, Timor-Leste
Blue 2 04 Apr 2021 18:00 227 30 thousand
- - - - Indonesia
Blue 3 05 Apr 2021 00:00 252 10 thousand
- - - - Indonesia, Timor-Leste
Blue 4 05 Apr 2021 06:00 220 5 thousand
- - - - Timor-Leste, Indonesia
Blue 5 05 Apr 2021 12:00 748 10 thousand
- - - - Indonesia




Impact estimation for the next 72h

StormSurge

0.4 m

The maximum Storm surge height is  0.4m in Derby, Australia. This height is estimated for 05 Apr 2021 12:00 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.

Storm Surge Exposed locations

Calculation based on the bulletin of 05 Apr 2021 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
05 Apr 2021 12:00 Derby Australia  0.4
05 Apr 2021 16:30 Kollan I Australia  0.4
05 Apr 2021 16:00 Broome Australia  0.4
05 Apr 2021 15:45 Thangoo Australia  0.3
05 Apr 2021 13:45 Pender Australia  0.3
05 Apr 2021 14:45 Menango Indonesia  0.3
05 Apr 2021 14:45 Tandjungkarang Indonesia  0.3
05 Apr 2021 14:45 Telukbetung Indonesia  0.3
05 Apr 2021 14:45 Tarahan Indonesia  0.3
05 Apr 2021 15:15 Pardoo Australia  0.3
05 Apr 2021 12:30 East Lewis I Australia  0.3
05 Apr 2021 12:30 Dampier Australia  0.3
05 Apr 2021 16:00 Kencong Indonesia  0.3
05 Apr 2021 16:00 Lodjedjer Indonesia  0.3
05 Apr 2021 16:45 Ngalu Indonesia  0.2
05 Apr 2021 16:45 Tapil Indonesia  0.2
05 Apr 2021 13:30 Kandangan Indonesia  0.2
05 Apr 2021 13:30 Gresik Indonesia  0.2
05 Apr 2021 13:30 Pangkalan Indonesia  0.2
05 Apr 2021 13:30 Batoe Porong Indonesia  0.2
05 Apr 2021 13:30 Kebanjar Indonesia  0.2
05 Apr 2021 12:00 Wickham Australia  0.2
05 Apr 2021 12:00 Point Samson Australia  0.2
05 Apr 2021 12:00 Cossack Australia  0.2
05 Apr 2021 14:45 Waterbank Australia  0.2
05 Apr 2021 14:00 Kennedys Cottage Australia  0.2
05 Apr 2021 12:15 Karratha Australia  0.2
05 Apr 2021 14:45 Kiluan Indonesia  0.2
05 Apr 2021 14:45 Kekatang Indonesia  0.2
05 Apr 2021 12:45 Baliga Indonesia  0.2
05 Apr 2021 12:45 Laboean Indonesia  0.2
05 Apr 2021 12:00 Sidoardjo Indonesia  0.2
05 Apr 2021 13:30 Oenggae Indonesia  0.2
05 Apr 2021 13:30 Nordale Indonesia  0.2
05 Apr 2021 13:30 Korlo Indonesia  0.2
05 Apr 2021 13:30 Suaha Indonesia  0.2
05 Apr 2021 13:30 Keoen Indonesia  0.2
05 Apr 2021 13:30 Daeoerendale Indonesia  0.2
05 Apr 2021 13:30 Akle Indonesia  0.2
05 Apr 2021 13:30 Eahun Indonesia  0.2
05 Apr 2021 13:30 Pepela Indonesia  0.2
05 Apr 2021 13:30 Roti Indonesia  0.2
05 Apr 2021 13:30 Batuidu Indonesia  0.2
05 Apr 2021 13:30 Usulain Indonesia  0.2
05 Apr 2021 13:30 Oisina Indonesia  0.2
05 Apr 2021 13:30 Tablolong Indonesia  0.2
05 Apr 2021 12:00 Pasuruan Indonesia  0.2
05 Apr 2021 13:45 Mardie Australia  0.2
05 Apr 2021 12:00 Sumberkuning Indonesia  0.2
05 Apr 2021 12:30 Onslow Australia  0.2
05 Apr 2021 12:45 Kramat Indonesia  0.2
05 Apr 2021 12:45 Cengkarengbelakang Indonesia  0.2
05 Apr 2021 12:45 Tipar Indonesia  0.2
05 Apr 2021 13:15 Vasse Australia  0.2
05 Apr 2021 13:15 Broadwater Australia  0.2
05 Apr 2021 13:15 Busselton Australia  0.2
05 Apr 2021 13:15 Wonnerup Australia  0.2
05 Apr 2021 13:15 Ludlow Australia  0.2
05 Apr 2021 17:15 Oetefoe-besar Indonesia  0.2
05 Apr 2021 17:15 Besdale Indonesia  0.2
05 Apr 2021 17:15 Silain Indonesia  0.2
05 Apr 2021 17:15 Oetefoe-ketjil Indonesia  0.2
05 Apr 2021 17:15 Butuinan Indonesia  0.2
05 Apr 2021 17:15 Hala Indonesia  0.2
05 Apr 2021 17:15 Oeboeah Indonesia  0.2
05 Apr 2021 17:15 Hansisi Indonesia  0.2
05 Apr 2021 17:15 Naioni Indonesia  0.2
05 Apr 2021 17:15 Tenau Indonesia  0.2
05 Apr 2021 17:15 Manoelairoti Indonesia  0.2
05 Apr 2021 17:15 Namosain Indonesia  0.2
05 Apr 2021 17:15 Kupang Indonesia  0.2
05 Apr 2021 17:15 Soelamoe Indonesia  0.2
05 Apr 2021 17:15 Maoelafa Indonesia  0.2
05 Apr 2021 17:15 Pitai Indonesia  0.2
05 Apr 2021 14:45 Safety Bay Australia  0.2
05 Apr 2021 14:45 Rockingham Australia  0.2
05 Apr 2021 14:45 Fremantle Australia  0.2
05 Apr 2021 14:45 Warnbro Australia  0.2
05 Apr 2021 14:45 North Fremantle Australia  0.2
05 Apr 2021 14:45 East Fremantle Australia  0.2
05 Apr 2021 14:45 Coogee Australia  0.2
05 Apr 2021 14:45 Spearwood Australia  0.2
05 Apr 2021 14:45 Wattleup Australia  0.2
05 Apr 2021 17:15 Manikin Indonesia  0.2
05 Apr 2021 12:45 Domas Indonesia  0.2
05 Apr 2021 12:45 Tanara Indonesia  0.2
05 Apr 2021 12:45 Ketapang Indonesia  0.2
05 Apr 2021 12:00 Sampang Indonesia  0.2
05 Apr 2021 12:15 Merapo Indonesia  0.2
05 Apr 2021 12:15 Boedae Indonesia  0.2
05 Apr 2021 14:15 Tjikawung Indonesia  0.2
05 Apr 2021 14:15 Sumur Indonesia  0.2
05 Apr 2021 14:15 Aerdjeruk Indonesia  0.2
05 Apr 2021 14:15 Babakancibeber Indonesia  0.2
05 Apr 2021 12:00 Bayeman Indonesia  0.2
05 Apr 2021 12:00 Probolinggo Indonesia  0.2
05 Apr 2021 17:00 Mboe Eain Indonesia  0.2
05 Apr 2021 17:00 Nembrala Indonesia  0.2
05 Apr 2021 17:00 Abuan Indonesia  0.2
05 Apr 2021 17:00 Ulua Indonesia  0.2
05 Apr 2021 17:00 Toedameda Indonesia  0.2
05 Apr 2021 17:00 Batutuah Indonesia  0.2
05 Apr 2021 17:00 Oeseda Indonesia  0.2
05 Apr 2021 13:15 Kota Boddo Indonesia  0.2
05 Apr 2021 13:15 Wawarei Indonesia  0.2
05 Apr 2021 13:15 Ege Indonesia  0.2
05 Apr 2021 13:15 Seba Indonesia  0.2
05 Apr 2021 12:00 Gending Indonesia  0.1
05 Apr 2021 12:00 Kraksaan Indonesia  0.1
05 Apr 2021 16:30 Maoe Ndai Indonesia  0.1
05 Apr 2021 16:30 Manoeran Indonesia  0.1
05 Apr 2021 16:30 Pigadjawa Indonesia  0.1
05 Apr 2021 16:30 Nangaboa Indonesia  0.1
05 Apr 2021 16:30 Waroe Kasoe Indonesia  0.1
05 Apr 2021 16:30 Wassa Indonesia  0.1
05 Apr 2021 17:00 Lapatawang Indonesia  0.1
05 Apr 2021 17:00 Kirihei Indonesia  0.1
05 Apr 2021 17:00 Kampoeng Melolo Indonesia  0.1
05 Apr 2021 17:00 Melolo Indonesia  0.1
05 Apr 2021 17:00 Jawang Indonesia  0.1
05 Apr 2021 13:30 Maringgai Indonesia  0.1
05 Apr 2021 12:00 Karagajar Indonesia  0.1
05 Apr 2021 15:45 Condon Australia  0.1
05 Apr 2021 15:00 Adipala Indonesia  0.1
05 Apr 2021 15:00 Binangoen Indonesia  0.1
05 Apr 2021 17:00 Pariti Indonesia  0.1
05 Apr 2021 17:00 Naimoeti Indonesia  0.1
05 Apr 2021 17:00 Petanahan Indonesia  0.1
05 Apr 2021 12:15 Balubuk Indonesia  0.1
05 Apr 2021 16:30 Latuna Indonesia  0.1
05 Apr 2021 16:30 Bagang Indonesia  0.1
05 Apr 2021 16:30 Toebal Indonesia  0.1
05 Apr 2021 16:30 Noehawaila Indonesia  0.1
05 Apr 2021 16:30 Tamelabang Indonesia  0.1
05 Apr 2021 16:30 Kabir Indonesia  0.1
05 Apr 2021 16:30 Maria Indonesia  0.1
05 Apr 2021 16:30 Alor-kecil Indonesia  0.1
05 Apr 2021 14:30 Falcon Australia  0.1
05 Apr 2021 14:30 Mandurah Australia  0.1
05 Apr 2021 14:30 Peelhurst Australia  0.1
05 Apr 2021 14:30 Singleton Australia  0.1
05 Apr 2021 14:30 Karnup Australia  0.1
05 Apr 2021 12:15 Kotahawoe Indonesia  0.1
05 Apr 2021 18:00 Sidaju Indonesia  0.1
05 Apr 2021 12:00 Merak Indonesia  0.1
05 Apr 2021 13:00 Dunsborough Australia  0.1
05 Apr 2021 13:00 Quindalup Australia  0.1
05 Apr 2021 12:15 Galis Indonesia  0.1
05 Apr 2021 15:15 Lalindi Indonesia  0.1
05 Apr 2021 15:15 Manoekangga Indonesia  0.1
05 Apr 2021 12:00 Besuki Indonesia  0.1
05 Apr 2021 13:00 Below Indonesia  0.1
05 Apr 2021 13:00 Baah Indonesia  0.1
05 Apr 2021 18:00 Padangan-wetan Indonesia  0.1
05 Apr 2021 18:00 Kalipang Indonesia  0.1
05 Apr 2021 18:00 Lemanbang Indonesia  0.1
05 Apr 2021 18:00 Tambakbaja Indonesia  0.1
05 Apr 2021 17:30 Waingapu Indonesia  0.1
05 Apr 2021 17:30 Matawai Indonesia  0.1
05 Apr 2021 17:30 Pajeti Indonesia  0.1
05 Apr 2021 17:30 Lakohembi Indonesia  0.1
05 Apr 2021 15:00 Ajah Indonesia  0.1
05 Apr 2021 12:00 Prenduan Indonesia  0.1
05 Apr 2021 16:00 Brassan Indonesia  0.1
05 Apr 2021 16:00 Muntjar Indonesia  0.1
05 Apr 2021 16:00 Blimbing Indonesia  0.1
05 Apr 2021 16:00 Dadapan Indonesia  0.1
05 Apr 2021 16:00 Banyuwangi Indonesia  0.1
05 Apr 2021 16:00 Banjuwangi Indonesia  0.1
05 Apr 2021 16:00 Gilimanuk Indonesia  0.1
05 Apr 2021 16:00 Penginoeman Indonesia  0.1
05 Apr 2021 16:00 Belimbingsari Indonesia  0.1
05 Apr 2021 16:00 Tjandikesuma Indonesia  0.1
05 Apr 2021 12:00 Mandingan Indonesia  0.1
05 Apr 2021 12:30 Nemperola Indonesia  0.1
05 Apr 2021 13:00 Wara Indonesia  0.1
05 Apr 2021 13:00 Toronaroe Indonesia  0.1
05 Apr 2021 14:30 Umbulan Pepanggar Indonesia  0.1
05 Apr 2021 14:30 Kalianda Indonesia  0.1
05 Apr 2021 13:30 Pedes Indonesia  0.1
05 Apr 2021 13:30 Sungaibuntu Indonesia  0.1
05 Apr 2021 17:15 Aermata Indonesia  0.1
05 Apr 2021 17:15 Klampis Indonesia  0.1
05 Apr 2021 17:15 Sapulu Indonesia  0.1
05 Apr 2021 12:00 Djate Indonesia  0.1
05 Apr 2021 13:30 Dalyellup Australia  0.1
05 Apr 2021 13:30 Bunbury Australia  0.1
05 Apr 2021 13:30 Binningup Australia  0.1
05 Apr 2021 13:30 Myalup Australia  0.1
05 Apr 2021 13:30 Picton Australia  0.1
05 Apr 2021 13:30 Eaton Australia  0.1
05 Apr 2021 13:30 Burragenup Australia  0.1
05 Apr 2021 13:30 Australind Australia  0.1
05 Apr 2021 12:00 Bluto Indonesia  0.1
05 Apr 2021 16:30 Tlagabiru Indonesia  0.1
05 Apr 2021 16:30 Banjoeates Indonesia  0.1
05 Apr 2021 14:00 Mosman Park Australia  0.1
05 Apr 2021 14:00 Cottesloe Australia  0.1
05 Apr 2021 14:00 Peppermint Grove Australia  0.1
05 Apr 2021 14:00 Swanbourne Australia  0.1
05 Apr 2021 14:00 Claremont Australia  0.1
05 Apr 2021 14:00 Bicton Australia  0.1
05 Apr 2021 13:00 Gunyulgup Australia  0.1
05 Apr 2021 13:00 Yallingup Australia  0.1
05 Apr 2021 14:00 Kolitjaah Indonesia  0.1
05 Apr 2021 14:00 Tjiteureup Indonesia  0.1
05 Apr 2021 14:00 Labuhan Indonesia  0.1
05 Apr 2021 14:00 Kaduperasi Indonesia  0.1
05 Apr 2021 12:00 Situbondo Indonesia  0.1
05 Apr 2021 12:00 Saroka Indonesia  0.1
05 Apr 2021 12:00 Sumenep Indonesia  0.1
05 Apr 2021 12:00 Bundan Indonesia  0.1
05 Apr 2021 17:00 Namodale Indonesia  0.1
05 Apr 2021 12:00 Gedugan Indonesia  0.1
05 Apr 2021 16:15 Ketapang Indonesia  0.1
05 Apr 2021 16:00 Kelapang Indonesia  0.1
05 Apr 2021 14:15 Sape Indonesia  0.1
05 Apr 2021 14:15 Badjo Indonesia  0.1
05 Apr 2021 18:00 Port Hedland Australia  0.1
05 Apr 2021 18:00 Wedgefield Australia  0.1
05 Apr 2021 16:15 Sokabana Indonesia  0.1
05 Apr 2021 17:00 Baa Indonesia  0.1
05 Apr 2021 17:00 Bando Indonesia  0.1
05 Apr 2021 16:45 Poeloedae Indonesia  0.1
05 Apr 2021 15:00 Chilachap Indonesia  0.1
05 Apr 2021 14:15 Bakau Indonesia  0.1
05 Apr 2021 14:15 Ketapang Indonesia  0.1
05 Apr 2021 16:45 Paraing Liang Indonesia  0.1
05 Apr 2021 16:45 Maoedoeloeng Indonesia  0.1
05 Apr 2021 17:45 Remen Indonesia  0.1
05 Apr 2021 16:30 Tanahkadukung Indonesia  0.1
05 Apr 2021 16:30 Baing Indonesia  0.1
05 Apr 2021 12:00 Djangdjangan Indonesia  0.1
05 Apr 2021 16:30 Soega Indonesia  0.1
05 Apr 2021 18:00 Plosokere Indonesia  0.1
05 Apr 2021 18:00 Djenu Indonesia  0.1
05 Apr 2021 18:00 Tuban Indonesia  0.1
05 Apr 2021 18:00 Semanding Indonesia  0.1
05 Apr 2021 18:00 Podang Indonesia  0.1
05 Apr 2021 18:00 Brondong Indonesia  0.1
05 Apr 2021 17:15 Djagalaja Indonesia  0.1
05 Apr 2021 16:45 Komodo Indonesia  0.1
05 Apr 2021 12:00 Pasirputih Indonesia  0.1
05 Apr 2021 12:00 Muaratjilamaja Indonesia  0.1