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 Australia
Exposed population No people in Category 1 or higher
Maximum wind speed 115 km/h
Maximum storm surge 0.7 m (11 Apr 00:00 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 115 km/h 0.7 m 335 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 Few people can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 08 Apr 2021 00:00 UTC
CategoryCountryPopulation 
Tropical StormAustralia939 

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 12:00 104 -
- - - - - Indonesia
GREEN 6 05 Apr 2021 18:00 108 -
- - - - - Indonesia
GREEN 7 06 Apr 2021 00:00 162 -
- - - - - Indonesia
GREEN 8 06 Apr 2021 06:00 94 - - - - - - -
GREEN 9 06 Apr 2021 12:00 108 - - - - - - -
GREEN 10 06 Apr 2021 18:00 137 - - - - - - -
GREEN 11 07 Apr 2021 00:00 104 - - - - - - -
GREEN 12 07 Apr 2021 06:00 119 - - - - - - -
GREEN 13 07 Apr 2021 12:00 97 - - - - - - -
GREEN 14 07 Apr 2021 18:00 86 - - - - - - -
GREEN 15 08 Apr 2021 00:00 227 -
- - - - - Australia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 08 Apr 2021 00:00 UTC
LevelCountryPopulation 
50-100 mmAustralia91 

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 12:00 169 -
- - - - - Indonesia
Blue 6 05 Apr 2021 18:00 277 2 thousand
- - - - Indonesia
Blue 7 06 Apr 2021 00:00 410 -
- - - - - Indonesia
Blue 8 06 Apr 2021 06:00 447 - - - - - - -
Blue 9 06 Apr 2021 12:00 417 - - - - - - -
Blue 10 06 Apr 2021 18:00 298 - - - - - - -
Blue 11 07 Apr 2021 00:00 284 - - - - - - -
Blue 12 07 Apr 2021 06:00 424 - - - - - - -
Blue 13 07 Apr 2021 12:00 553 - - - - - - -
Blue 14 07 Apr 2021 18:00 359 - - - - - - -
Blue 15 08 Apr 2021 00:00 644 -
- - - - - Australia




Impact estimation for the next 72h

StormSurge

0.7 m

The maximum Storm surge height is  0.7m in Dirk Hartog, Australia. This height is estimated for 11 Apr 2021 00:00 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 08 Apr 2021 00:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
11 Apr 2021 00:00 Dirk Hartog Australia  0.7
11 Apr 2021 00:00 Useless Loop Australia  0.7
11 Apr 2021 00:00 Tamala Australia  0.6
11 Apr 2021 00:00 Denham Australia  0.6
08 Apr 2021 08:15 Wickham Australia  0.5
08 Apr 2021 08:15 Point Samson Australia  0.5
08 Apr 2021 08:15 Cossack Australia  0.5
09 Apr 2021 18:45 Learmonth Australia  0.5
11 Apr 2021 00:00 Shark Bay Australia  0.5
11 Apr 2021 00:00 Monkey Mia Australia  0.5
08 Apr 2021 08:30 Karratha Australia  0.5
08 Apr 2021 08:00 Dampier Australia  0.5
10 Apr 2021 16:00 Onslow Australia  0.5
08 Apr 2021 09:15 Mardie Australia  0.4
08 Apr 2021 06:30 Port Hedland Australia  0.4
08 Apr 2021 06:30 Wedgefield Australia  0.4
11 Apr 2021 00:00 Carrarang Australia  0.4
11 Apr 2021 00:00 Nanga Australia  0.4
10 Apr 2021 15:30 Glenroy Australia  0.4
08 Apr 2021 09:00 East Lewis I Australia  0.4
11 Apr 2021 00:00 Hamelin Pool Australia  0.4
11 Apr 2021 00:00 Hamelin Australia  0.4
10 Apr 2021 23:30 Carnarvon Australia  0.4
09 Apr 2021 18:15 Exmouth Australia  0.4
08 Apr 2021 19:15 Ah Chong I Australia  0.3
11 Apr 2021 00:00 Gladstone Australia  0.3
08 Apr 2021 11:15 Broome Australia  0.3
08 Apr 2021 11:15 Thangoo Australia  0.3
08 Apr 2021 09:15 Pardoo Australia  0.3
10 Apr 2021 21:30 Quobba Australia  0.3
08 Apr 2021 07:15 Condon Australia  0.3
10 Apr 2021 21:30 Cape Cuvier Australia  0.3
08 Apr 2021 07:30 Pender Australia  0.3
08 Apr 2021 09:00 Waterbank Australia  0.2
08 Apr 2021 07:45 Kencong Indonesia  0.2
08 Apr 2021 07:45 Lodjedjer Indonesia  0.2
10 Apr 2021 21:00 Gnaraloo Australia  0.2
08 Apr 2021 09:00 Kennedys Cottage Australia  0.2
10 Apr 2021 18:45 Warroora Australia  0.2
08 Apr 2021 02:00 Blimbing Indonesia  0.2
08 Apr 2021 02:00 Dadapan Indonesia  0.2
08 Apr 2021 02:00 Banyuwangi Indonesia  0.2
08 Apr 2021 02:00 Banjuwangi Indonesia  0.2
08 Apr 2021 02:00 Soega Indonesia  0.2
08 Apr 2021 02:00 Gilimanuk Indonesia  0.2
08 Apr 2021 02:00 Penginoeman Indonesia  0.2
08 Apr 2021 02:00 Belimbingsari Indonesia  0.2
08 Apr 2021 02:00 Tjandikesuma Indonesia  0.2
10 Apr 2021 18:30 Cardabia Australia  0.2
09 Apr 2021 14:15 Kandangan Indonesia  0.2
09 Apr 2021 14:15 Gresik Indonesia  0.2
09 Apr 2021 14:15 Pangkalan Indonesia  0.2
09 Apr 2021 14:15 Batoe Porong Indonesia  0.2
09 Apr 2021 14:15 Kebanjar Indonesia  0.2
08 Apr 2021 04:30 Oeboeah Indonesia  0.2
08 Apr 2021 04:30 Hansisi Indonesia  0.2
08 Apr 2021 04:30 Naioni Indonesia  0.2
08 Apr 2021 04:30 Tenau Indonesia  0.2
08 Apr 2021 04:30 Manoelairoti Indonesia  0.2
08 Apr 2021 04:30 Namosain Indonesia  0.2
08 Apr 2021 04:30 Kupang Indonesia  0.2
08 Apr 2021 04:30 Soelamoe Indonesia  0.2
08 Apr 2021 04:30 Maoelafa Indonesia  0.2
08 Apr 2021 04:30 Pitai Indonesia  0.2
08 Apr 2021 04:30 Manikin Indonesia  0.2
08 Apr 2021 04:30 Pariti Indonesia  0.2
08 Apr 2021 04:30 Naimoeti Indonesia  0.2
08 Apr 2021 05:30 Binangoen Indonesia  0.2
08 Apr 2021 05:30 Ajah Indonesia  0.2
08 Apr 2021 07:15 Adipala Indonesia  0.2
11 Apr 2021 00:00 Kalbarri Australia  0.2
08 Apr 2021 05:15 Chilachap Indonesia  0.2
08 Apr 2021 12:45 Derby Australia  0.2
08 Apr 2021 11:00 Sindangsari Indonesia  0.2
08 Apr 2021 11:00 Cijulang Indonesia  0.2
08 Apr 2021 11:00 Cikalong Indonesia  0.2
08 Apr 2021 11:00 Pangadaran Indonesia  0.2
08 Apr 2021 06:15 Tjikawung Indonesia  0.2
08 Apr 2021 06:15 Aerdjeruk Indonesia  0.2
09 Apr 2021 14:00 Baliga Indonesia  0.2
09 Apr 2021 14:00 Laboean Indonesia  0.2
09 Apr 2021 04:45 Ningaloo Australia  0.2
08 Apr 2021 08:00 Kaliputjang Indonesia  0.1
09 Apr 2021 12:45 Sidoardjo Indonesia  0.1
08 Apr 2021 05:30 Petanahan Indonesia  0.1
08 Apr 2021 01:30 Muntjar Indonesia  0.1
09 Apr 2021 12:30 Pasuruan Indonesia  0.1
08 Apr 2021 13:15 Laboean Mapin Indonesia  0.1
08 Apr 2021 13:15 Alas Indonesia  0.1
08 Apr 2021 13:15 Pernang Indonesia  0.1
09 Apr 2021 13:15 Sumberkuning Indonesia  0.1
08 Apr 2021 05:45 Petjatu Indonesia  0.1
08 Apr 2021 05:45 Seseh Indonesia  0.1
08 Apr 2021 05:45 Kuta Indonesia  0.1
08 Apr 2021 05:45 Djimbaran Indonesia  0.1
08 Apr 2021 05:45 Boealoe Indonesia  0.1
08 Apr 2021 05:45 Benua Indonesia  0.1
08 Apr 2021 05:45 Denpasar Indonesia  0.1
08 Apr 2021 05:45 Sukawati Indonesia  0.1
08 Apr 2021 17:00 Huu Indonesia  0.1
08 Apr 2021 17:00 Madawa Indonesia  0.1
08 Apr 2021 17:00 Polo Indonesia  0.1
09 Apr 2021 13:30 Bayeman Indonesia  0.1
11 Apr 2021 00:00 Gregory Australia  0.1
11 Apr 2021 00:00 Lynton Australia  0.1
09 Apr 2021 21:30 Bundera Bundera Australia  0.1
08 Apr 2021 18:45 Maoe Ndai Indonesia  0.1
08 Apr 2021 18:45 Manoeran Indonesia  0.1
08 Apr 2021 18:45 Pigadjawa Indonesia  0.1
08 Apr 2021 18:45 Nangaboa Indonesia  0.1
08 Apr 2021 18:45 Waroe Kasoe Indonesia  0.1
08 Apr 2021 18:45 Wassa Indonesia  0.1
09 Apr 2021 12:30 Probolinggo Indonesia  0.1
08 Apr 2021 09:45 Brassan Indonesia  0.1
09 Apr 2021 12:45 Sampang Indonesia  0.1
09 Apr 2021 12:30 Gending Indonesia  0.1
09 Apr 2021 12:30 Kraksaan Indonesia  0.1
09 Apr 2021 13:00 Karagajar Indonesia  0.1
08 Apr 2021 09:45 Waingapu Indonesia  0.1
08 Apr 2021 09:45 Matawai Indonesia  0.1
08 Apr 2021 09:45 Pajeti Indonesia  0.1
08 Apr 2021 09:45 Lakohembi Indonesia  0.1
08 Apr 2021 08:15 Kiluan Indonesia  0.1
08 Apr 2021 08:15 Kekatang Indonesia  0.1
08 Apr 2021 08:15 Menango Indonesia  0.1
08 Apr 2021 08:15 Telukbetung Indonesia  0.1
08 Apr 2021 00:00 Oetefoe-besar Indonesia  0.1
08 Apr 2021 00:00 Besdale Indonesia  0.1
08 Apr 2021 00:00 Silain Indonesia  0.1
08 Apr 2021 00:00 Oetefoe-ketjil Indonesia  0.1
08 Apr 2021 00:00 Butuinan Indonesia  0.1
08 Apr 2021 00:00 Hala Indonesia  0.1
08 Apr 2021 10:00 Banjoebiroe Indonesia  0.1
08 Apr 2021 10:00 Cupel Indonesia  0.1
08 Apr 2021 10:00 Prancak Indonesia  0.1
08 Apr 2021 10:00 Negara Indonesia  0.1
08 Apr 2021 14:45 Wara Indonesia  0.1
08 Apr 2021 14:45 Toronaroe Indonesia  0.1
08 Apr 2021 02:45 Tandjungkarang Indonesia  0.1
08 Apr 2021 02:45 Tarahan Indonesia  0.1
09 Apr 2021 12:30 Galis Indonesia  0.1
08 Apr 2021 09:15 Mundjungan Indonesia  0.1
08 Apr 2021 09:15 Tasikmadoe Indonesia  0.1
08 Apr 2021 09:15 Popoh Indonesia  0.1
08 Apr 2021 00:00 Ngalu Indonesia  0.1
08 Apr 2021 00:00 Tapil Indonesia  0.1
08 Apr 2021 11:00 Sape Indonesia  0.1
08 Apr 2021 11:00 Badjo Indonesia  0.1
08 Apr 2021 08:30 Sumur Indonesia  0.1
09 Apr 2021 12:30 Prenduan Indonesia  0.1
08 Apr 2021 07:00 Pahanuma Indonesia  0.1
08 Apr 2021 07:00 Belowa Indonesia  0.1
08 Apr 2021 07:00 Taoabi Indonesia  0.1
08 Apr 2021 17:00 Koekoewerang Indonesia  0.1
08 Apr 2021 17:00 Throng Indonesia  0.1
08 Apr 2021 17:00 Lamakera Indonesia  0.1
08 Apr 2021 17:00 Wotanglolong Indonesia  0.1
08 Apr 2021 17:00 Lewokeling Indonesia  0.1
08 Apr 2021 17:00 Boleng Indonesia  0.1
08 Apr 2021 17:00 Lamararap Indonesia  0.1
08 Apr 2021 17:00 Lewoleba Indonesia  0.1
08 Apr 2021 17:00 Lamanuna Indonesia  0.1
08 Apr 2021 06:30 Maoedoeloeng Indonesia  0.1
08 Apr 2021 07:30 Banjuwedang Indonesia  0.1
08 Apr 2021 06:45 Aplame Indonesia  0.1
08 Apr 2021 06:45 Woereh Indonesia  0.1
08 Apr 2021 06:45 Lewohajong Indonesia  0.1
08 Apr 2021 06:45 Adoenara Indonesia  0.1
08 Apr 2021 06:45 Papelawe Indonesia  0.1
08 Apr 2021 06:45 Sagu Indonesia  0.1
08 Apr 2021 06:45 Witihama Indonesia  0.1
08 Apr 2021 06:45 Nereng Indonesia  0.1
09 Apr 2021 13:00 Besuki Indonesia  0.1
08 Apr 2021 00:45 Ponta Acoilo Timor-Leste  0.1
08 Apr 2021 00:45 Dili Timor-Leste  0.1
08 Apr 2021 00:45 Met Naro Timor-Leste  0.1
08 Apr 2021 06:00 Labih Indonesia  0.1
09 Apr 2021 23:30 Cilancang Indonesia  0.1
09 Apr 2021 23:30 Cirebon Indonesia  0.1
08 Apr 2021 03:45 Bandaragung Indonesia  0.1
08 Apr 2021 03:45 Tjampang Indonesia  0.1
08 Apr 2021 03:45 Waiharoe Indonesia  0.1
08 Apr 2021 03:45 Belimbing Indonesia  0.1
08 Apr 2021 06:30 Batuulo Indonesia  0.1
08 Apr 2021 00:15 Grajagan Indonesia  0.1
08 Apr 2021 00:15 Gradjagan Indonesia  0.1
08 Apr 2021 15:15 Reo Indonesia  0.1
09 Apr 2021 13:00 Mandingan Indonesia  0.1
09 Apr 2021 12:00 Djate Indonesia  0.1
09 Apr 2021 12:00 Bluto Indonesia  0.1
09 Apr 2021 23:30 Losan Indonesia  0.1
08 Apr 2021 10:00 Mendaja Indonesia  0.1
09 Apr 2021 13:15 Saroka Indonesia  0.1
09 Apr 2021 13:15 Sumenep Indonesia  0.1
09 Apr 2021 13:15 Bundan Indonesia  0.1
09 Apr 2021 13:15 Gedugan Indonesia  0.1
08 Apr 2021 11:00 Poeloedae Indonesia  0.1
08 Apr 2021 17:15 Mboe Eain Indonesia  0.1
08 Apr 2021 17:15 Nembrala Indonesia  0.1
08 Apr 2021 17:15 Abuan Indonesia  0.1
08 Apr 2021 17:15 Ulua Indonesia  0.1
08 Apr 2021 17:15 Toedameda Indonesia  0.1
08 Apr 2021 17:15 Batutuah Indonesia  0.1
08 Apr 2021 17:15 Oeseda Indonesia  0.1
09 Apr 2021 23:15 Bulakamba Indonesia  0.1
09 Apr 2021 23:30 Karangampel Indonesia  0.1
08 Apr 2021 01:45 Karanganjar Indonesia  0.1
08 Apr 2021 01:45 Chikalong Indonesia  0.1