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
Exposed population No people in Category 1 or higher
Maximum wind speed 104 km/h
Maximum storm surge 0.4 m (06 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
ECMWF Current 104 km/h 0.4 m 287 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 Few people can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 06 Apr 2021 00:00 UTC
CategoryCountryPopulation 
Tropical StormIndonesia8 

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 00:00 108 -
- - - - - Indonesia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 06 Apr 2021 00:00 UTC
LevelCountryPopulation 
100-250 mmIndonesia245594 
50-100 mmIndonesia, Timor-Leste11428850
+
Indonesia11412093 
Timor-Leste16757 

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 00:00 453 250 thousand
- - - - Indonesia, Timor-Leste




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 06 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.

Calculation based on the bulletin of 06 Apr 2021 00:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
06 Apr 2021 12:00 Derby Australia  0.4
06 Apr 2021 06:00 Broome Australia  0.4
06 Apr 2021 06:00 Thangoo Australia  0.4
06 Apr 2021 04:00 Pender Australia  0.3
06 Apr 2021 10:00 Dampier Australia  0.3
06 Apr 2021 10:00 Karratha Australia  0.3
06 Apr 2021 07:45 Kollan I Australia  0.3
06 Apr 2021 00:45 Lalindi Indonesia  0.3
06 Apr 2021 09:45 Wickham Australia  0.3
06 Apr 2021 10:45 Mardie Australia  0.3
06 Apr 2021 03:45 Waterbank Australia  0.3
06 Apr 2021 09:00 Point Samson Australia  0.3
06 Apr 2021 09:00 Cossack Australia  0.3
06 Apr 2021 08:15 Port Hedland Australia  0.3
06 Apr 2021 08:15 Wedgefield Australia  0.3
06 Apr 2021 04:00 Kennedys Cottage Australia  0.3
06 Apr 2021 10:15 East Lewis I Australia  0.3
06 Apr 2021 00:15 Manoekangga Indonesia  0.3
06 Apr 2021 00:30 Omatena Indonesia  0.2
06 Apr 2021 00:30 Kambaroe Indonesia  0.2
06 Apr 2021 06:45 Pardoo Australia  0.2
06 Apr 2021 08:00 Blimbing Indonesia  0.2
06 Apr 2021 08:00 Dadapan Indonesia  0.2
06 Apr 2021 08:00 Banyuwangi Indonesia  0.2
06 Apr 2021 08:00 Banjuwangi Indonesia  0.2
06 Apr 2021 08:00 Soega Indonesia  0.2
06 Apr 2021 08:00 Gilimanuk Indonesia  0.2
06 Apr 2021 08:00 Penginoeman Indonesia  0.2
06 Apr 2021 08:00 Belimbingsari Indonesia  0.2
06 Apr 2021 08:00 Tjandikesuma Indonesia  0.2
06 Apr 2021 07:45 Condon Australia  0.2
06 Apr 2021 03:45 Kandangan Indonesia  0.2
06 Apr 2021 03:45 Gresik Indonesia  0.2
06 Apr 2021 03:45 Pangkalan Indonesia  0.2
06 Apr 2021 03:45 Batoe Porong Indonesia  0.2
06 Apr 2021 03:45 Kebanjar Indonesia  0.2
06 Apr 2021 08:15 Kencong Indonesia  0.2
06 Apr 2021 08:15 Lodjedjer Indonesia  0.2
06 Apr 2021 08:15 Batuulo Indonesia  0.2
06 Apr 2021 00:15 Tanahkadukung Indonesia  0.2
06 Apr 2021 00:15 Baing Indonesia  0.2
06 Apr 2021 02:30 Sidoardjo Indonesia  0.2
06 Apr 2021 03:30 Baliga Indonesia  0.2
06 Apr 2021 03:30 Laboean Indonesia  0.2
06 Apr 2021 01:45 Pasuruan Indonesia  0.2
06 Apr 2021 01:45 Bayeman Indonesia  0.2
06 Apr 2021 06:15 Vasse Australia  0.2
06 Apr 2021 06:15 Broadwater Australia  0.2
06 Apr 2021 06:15 Busselton Australia  0.2
06 Apr 2021 06:15 Wonnerup Australia  0.2
06 Apr 2021 06:15 Ludlow Australia  0.2
06 Apr 2021 06:45 Maoe Ndai Indonesia  0.2
06 Apr 2021 06:45 Manoeran Indonesia  0.2
06 Apr 2021 06:45 Pigadjawa Indonesia  0.2
06 Apr 2021 06:45 Nangaboa Indonesia  0.2
06 Apr 2021 06:45 Waroe Kasoe Indonesia  0.2
06 Apr 2021 06:45 Wassa Indonesia  0.2
06 Apr 2021 08:45 Muntjar Indonesia  0.2
06 Apr 2021 08:30 Brassan Indonesia  0.2
06 Apr 2021 02:15 Sumberkuning Indonesia  0.2
06 Apr 2021 02:00 Probolinggo Indonesia  0.2
06 Apr 2021 01:45 Gending Indonesia  0.2
06 Apr 2021 01:45 Kraksaan Indonesia  0.2
06 Apr 2021 11:00 Menango Indonesia  0.2
06 Apr 2021 11:00 Tandjungkarang Indonesia  0.2
06 Apr 2021 11:00 Telukbetung Indonesia  0.2
06 Apr 2021 11:00 Tarahan Indonesia  0.2
06 Apr 2021 02:00 Sampang Indonesia  0.2
06 Apr 2021 09:30 Ah Chong I Australia  0.2
06 Apr 2021 10:30 Aplame Indonesia  0.2
06 Apr 2021 10:30 Woereh Indonesia  0.2
06 Apr 2021 10:30 Lewohajong Indonesia  0.2
06 Apr 2021 10:30 Koekoewerang Indonesia  0.2
06 Apr 2021 10:30 Throng Indonesia  0.2
06 Apr 2021 10:30 Adoenara Indonesia  0.2
06 Apr 2021 10:30 Lamakera Indonesia  0.2
06 Apr 2021 10:30 Papelawe Indonesia  0.2
06 Apr 2021 10:30 Sagu Indonesia  0.2
06 Apr 2021 10:30 Wotanglolong Indonesia  0.2
06 Apr 2021 10:30 Lewokeling Indonesia  0.2
06 Apr 2021 10:30 Witihama Indonesia  0.2
06 Apr 2021 10:30 Boleng Indonesia  0.2
06 Apr 2021 10:30 Nereng Indonesia  0.2
06 Apr 2021 00:30 Ngalu Indonesia  0.1
06 Apr 2021 10:30 Lewoleba Indonesia  0.1
06 Apr 2021 10:30 Lamanuna Indonesia  0.1
06 Apr 2021 02:00 Karagajar Indonesia  0.1
06 Apr 2021 03:15 Maringgai Indonesia  0.1
06 Apr 2021 11:00 Kiluan Indonesia  0.1
06 Apr 2021 11:00 Kekatang Indonesia  0.1
06 Apr 2021 05:45 Maoedoeloeng Indonesia  0.1
06 Apr 2021 05:45 Waingapu Indonesia  0.1
06 Apr 2021 05:45 Matawai Indonesia  0.1
06 Apr 2021 05:45 Pajeti Indonesia  0.1
06 Apr 2021 01:15 Waigalli Indonesia  0.1
06 Apr 2021 01:15 Praigaga Indonesia  0.1
06 Apr 2021 07:45 Sape Indonesia  0.1
06 Apr 2021 07:45 Toronaroe Indonesia  0.1
06 Apr 2021 07:45 Badjo Indonesia  0.1
06 Apr 2021 05:00 Lakohembi Indonesia  0.1
06 Apr 2021 09:45 Onslow Australia  0.1
06 Apr 2021 02:00 Galis Indonesia  0.1
06 Apr 2021 10:00 Guring Indonesia  0.1
06 Apr 2021 10:00 Kota Agung Indonesia  0.1
06 Apr 2021 10:30 Lamararap Indonesia  0.1
06 Apr 2021 06:15 Lapatawang Indonesia  0.1
06 Apr 2021 06:15 Kirihei Indonesia  0.1
06 Apr 2021 06:15 Kampoeng Melolo Indonesia  0.1
06 Apr 2021 06:15 Melolo Indonesia  0.1
06 Apr 2021 06:15 Jawang Indonesia  0.1
06 Apr 2021 06:15 Tapil Indonesia  0.1
06 Apr 2021 01:15 Madala Indonesia  0.1
06 Apr 2021 01:15 Bondobela Indonesia  0.1
06 Apr 2021 01:30 Prenduan Indonesia  0.1
06 Apr 2021 00:30 Banjoebiroe Indonesia  0.1
06 Apr 2021 00:30 Cupel Indonesia  0.1
06 Apr 2021 00:30 Banjuwedang Indonesia  0.1
06 Apr 2021 00:30 Prancak Indonesia  0.1
06 Apr 2021 00:30 Negara Indonesia  0.1
06 Apr 2021 02:15 Besuki Indonesia  0.1
06 Apr 2021 02:45 Plosokere Indonesia  0.1
06 Apr 2021 02:45 Djenu Indonesia  0.1
06 Apr 2021 02:45 Tuban Indonesia  0.1
06 Apr 2021 02:45 Semanding Indonesia  0.1
06 Apr 2021 02:45 Podang Indonesia  0.1
06 Apr 2021 02:45 Brondong Indonesia  0.1
06 Apr 2021 03:45 Kramat Indonesia  0.1
06 Apr 2021 03:45 Cengkarengbelakang Indonesia  0.1
06 Apr 2021 03:45 Tipar Indonesia  0.1
06 Apr 2021 06:30 Oenggae Indonesia  0.1
06 Apr 2021 06:30 Nordale Indonesia  0.1
06 Apr 2021 06:30 Korlo Indonesia  0.1
06 Apr 2021 06:30 Suaha Indonesia  0.1
06 Apr 2021 06:30 Keoen Indonesia  0.1
06 Apr 2021 06:30 Daeoerendale Indonesia  0.1
06 Apr 2021 06:30 Akle Indonesia  0.1
06 Apr 2021 06:30 Eahun Indonesia  0.1
06 Apr 2021 06:30 Pepela Indonesia  0.1
06 Apr 2021 06:30 Roti Indonesia  0.1
06 Apr 2021 06:30 Batuidu Indonesia  0.1
06 Apr 2021 06:30 Usulain Indonesia  0.1
06 Apr 2021 06:30 Oisina Indonesia  0.1
06 Apr 2021 06:30 Tablolong Indonesia  0.1
06 Apr 2021 01:15 Mandingan Indonesia  0.1
06 Apr 2021 10:30 Umbulan Pepanggar Indonesia  0.1
06 Apr 2021 10:30 Kalianda Indonesia  0.1
06 Apr 2021 01:00 Binangoen Indonesia  0.1
06 Apr 2021 01:00 Ajah Indonesia  0.1
06 Apr 2021 02:45 Tanara Indonesia  0.1
06 Apr 2021 02:45 Ketapang Indonesia  0.1
06 Apr 2021 08:30 Adipala Indonesia  0.1
06 Apr 2021 12:00 Seseh Indonesia  0.1
06 Apr 2021 12:00 Kuta Indonesia  0.1
06 Apr 2021 12:00 Djimbaran Indonesia  0.1
06 Apr 2021 12:00 Boealoe Indonesia  0.1
06 Apr 2021 12:00 Benua Indonesia  0.1
06 Apr 2021 12:00 Denpasar Indonesia  0.1
06 Apr 2021 12:00 Sukawati Indonesia  0.1
06 Apr 2021 12:00 Labih Indonesia  0.1
06 Apr 2021 12:00 Bandjarangkan Indonesia  0.1
06 Apr 2021 12:00 Lungkung Indonesia  0.1
06 Apr 2021 10:15 Latuna Indonesia  0.1
06 Apr 2021 10:15 Bagang Indonesia  0.1
06 Apr 2021 10:15 Toebal Indonesia  0.1
06 Apr 2021 10:15 Noehawaila Indonesia  0.1
06 Apr 2021 10:15 Tamelabang Indonesia  0.1
06 Apr 2021 10:15 Kabir Indonesia  0.1
06 Apr 2021 10:15 Maria Indonesia  0.1
06 Apr 2021 10:15 Alor-kecil Indonesia  0.1
06 Apr 2021 02:00 Djate Indonesia  0.1
06 Apr 2021 02:00 Bluto Indonesia  0.1
06 Apr 2021 02:00 Saroka Indonesia  0.1
06 Apr 2021 02:00 Sumenep Indonesia  0.1
06 Apr 2021 02:00 Bundan Indonesia  0.1
06 Apr 2021 02:00 Gedugan Indonesia  0.1
06 Apr 2021 07:00 Bangkulua Indonesia  0.1
06 Apr 2021 07:00 Huu Indonesia  0.1
06 Apr 2021 07:00 Madawa Indonesia  0.1
06 Apr 2021 07:00 Polo Indonesia  0.1
06 Apr 2021 02:30 Oetefoe-besar Indonesia  0.1
06 Apr 2021 02:30 Besdale Indonesia  0.1
06 Apr 2021 02:30 Silain Indonesia  0.1
06 Apr 2021 02:30 Oetefoe-ketjil Indonesia  0.1
06 Apr 2021 02:30 Butuinan Indonesia  0.1
06 Apr 2021 02:30 Hala Indonesia  0.1
06 Apr 2021 02:30 Oeboeah Indonesia  0.1
06 Apr 2021 02:30 Hansisi Indonesia  0.1
06 Apr 2021 02:30 Naioni Indonesia  0.1
06 Apr 2021 02:30 Tenau Indonesia  0.1
06 Apr 2021 02:30 Manoelairoti Indonesia  0.1
06 Apr 2021 02:30 Namosain Indonesia  0.1
06 Apr 2021 02:30 Kupang Indonesia  0.1
06 Apr 2021 02:30 Soelamoe Indonesia  0.1
06 Apr 2021 02:30 Maoelafa Indonesia  0.1
06 Apr 2021 02:30 Pitai Indonesia  0.1
06 Apr 2021 06:15 Mboe Eain Indonesia  0.1
06 Apr 2021 06:15 Nembrala Indonesia  0.1
06 Apr 2021 06:15 Abuan Indonesia  0.1
06 Apr 2021 06:15 Ulua Indonesia  0.1
06 Apr 2021 06:15 Toedameda Indonesia  0.1
06 Apr 2021 06:15 Batutuah Indonesia  0.1
06 Apr 2021 06:15 Oeseda Indonesia  0.1
06 Apr 2021 00:45 Chilachap Indonesia  0.1
06 Apr 2021 11:15 Makasar Indonesia  0.1
06 Apr 2021 11:15 Manda Indonesia  0.1
06 Apr 2021 09:45 Karangberak Indonesia  0.1
06 Apr 2021 09:45 Sawangbalak Indonesia  0.1
06 Apr 2021 09:45 Bandjaragung Indonesia  0.1
06 Apr 2021 10:15 Petanahan Indonesia  0.1
06 Apr 2021 06:00 Dalyellup Australia  0.1
06 Apr 2021 06:00 Bunbury Australia  0.1
06 Apr 2021 06:00 Picton Australia  0.1
06 Apr 2021 04:00 Sidaju Indonesia  0.1
06 Apr 2021 08:15 Sikeli Indonesia  0.1
06 Apr 2021 08:15 Tedubara Indonesia  0.1
06 Apr 2021 08:15 Pising Indonesia  0.1
06 Apr 2021 07:00 Nemperola Indonesia  0.1
06 Apr 2021 03:30 Domas Indonesia  0.1
06 Apr 2021 03:00 Balubuk Indonesia  0.1
06 Apr 2021 09:30 Tampoena Wo Indonesia  0.1
06 Apr 2021 09:30 Wasalangka Indonesia  0.1
06 Apr 2021 01:30 Situbondo Indonesia  0.1
06 Apr 2021 05:15 Karendi Indonesia  0.1
06 Apr 2021 05:15 Memboro Indonesia  0.1
06 Apr 2021 00:30 Oeboeoleta Indonesia  0.1
06 Apr 2021 10:15 Poeloedae Indonesia  0.1
06 Apr 2021 10:15 Manikin Indonesia  0.1
06 Apr 2021 10:15 Pariti Indonesia  0.1
06 Apr 2021 10:15 Naimoeti Indonesia  0.1
06 Apr 2021 01:15 Merapo Indonesia  0.1
06 Apr 2021 01:15 Boedae Indonesia  0.1
06 Apr 2021 08:45 Mendaja Indonesia  0.1
06 Apr 2021 07:15 Paraing Liang Indonesia  0.1
06 Apr 2021 06:45 Lena Indonesia  0.1
06 Apr 2021 06:45 Kadesa Indonesia  0.1
06 Apr 2021 06:45 Lapaoe Indonesia  0.1
06 Apr 2021 10:15 Kota Boddo Indonesia  0.1
06 Apr 2021 10:15 Wawarei Indonesia  0.1
06 Apr 2021 10:15 Seba Indonesia  0.1
06 Apr 2021 10:15 Below Indonesia  0.1
06 Apr 2021 10:15 Baah Indonesia  0.1
06 Apr 2021 03:15 Ketapang Indonesia  0.1
06 Apr 2021 08:45 Sindangsari Indonesia  0.1
06 Apr 2021 08:45 Cijulang Indonesia  0.1
06 Apr 2021 08:45 Cikalong Indonesia  0.1
06 Apr 2021 08:45 Pangadaran Indonesia  0.1
06 Apr 2021 00:30 Kahale Indonesia  0.1
06 Apr 2021 01:45 Djangdjangan Indonesia  0.1
06 Apr 2021 06:00 Sindjai Indonesia  0.1
06 Apr 2021 06:00 Boku Indonesia  0.1
06 Apr 2021 06:00 Balampangi Indonesia  0.1
06 Apr 2021 06:00 Kadjang Indonesia  0.1
06 Apr 2021 09:00 Waikasaha Indonesia  0.1
06 Apr 2021 09:00 Kodi Indonesia  0.1
06 Apr 2021 09:00 Soema Indonesia  0.1
06 Apr 2021 09:00 Genggalo Indonesia  0.1