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 97 km/h
Maximum storm surge 0.8 m (10 Apr 00:30 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 97 km/h 0.8 m 553 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 9 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 07 Apr 2021 12:00 UTC
CategoryCountryPopulation 
Tropical StormAustralia9,229 

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 12:00 238 -
- - - - - Australia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 07 Apr 2021 12:00 UTC
LevelCountryPopulation 
100-250 mmAustralia2,872 
50-100 mmAustralia22,681 

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 12:00 560 3 thousand
- - - - Australia




Impact estimation for the next 72h

StormSurge

0.8 m

The maximum Storm surge height is  0.8m in Learmonth, Australia. This height is estimated for 10 Apr 2021 00:30 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 07 Apr 2021 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
10 Apr 2021 00:30 Learmonth Australia  0.8
10 Apr 2021 00:15 Exmouth 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
08 Apr 2021 08:00 Dampier Australia  0.5
08 Apr 2021 08:00 Karratha Australia  0.5
10 Apr 2021 12:00 Dirk Hartog Australia  0.5
10 Apr 2021 12:00 Useless Loop Australia  0.5
09 Apr 2021 10:15 Mardie Australia  0.5
10 Apr 2021 06:00 Onslow Australia  0.4
08 Apr 2021 06:15 Port Hedland Australia  0.4
08 Apr 2021 06:15 Wedgefield Australia  0.4
10 Apr 2021 06:15 Glenroy Australia  0.4
08 Apr 2021 07:00 East Lewis I Australia  0.4
07 Apr 2021 12:00 Broome Australia  0.4
08 Apr 2021 11:45 Thangoo Australia  0.4
09 Apr 2021 10:30 Ah Chong I Australia  0.4
07 Apr 2021 21:30 Condon Australia  0.3
08 Apr 2021 22:00 Pardoo Australia  0.3
07 Apr 2021 13:00 Pender Australia  0.3
08 Apr 2021 10:15 Waterbank Australia  0.3
07 Apr 2021 16:00 Derby Australia  0.3
07 Apr 2021 16:45 Kennedys Cottage Australia  0.3
07 Apr 2021 12:00 Kollan I Australia  0.2
10 Apr 2021 11:15 Warroora Australia  0.2
10 Apr 2021 12:00 Gnaraloo Australia  0.2
07 Apr 2021 12:30 Kencong Indonesia  0.2
07 Apr 2021 12:30 Lodjedjer Indonesia  0.2
10 Apr 2021 12:00 Cardabia Australia  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
10 Apr 2021 12:00 Denham Australia  0.2
10 Apr 2021 12:00 Cape Cuvier Australia  0.2
07 Apr 2021 20:15 Blimbing Indonesia  0.2
07 Apr 2021 20:15 Dadapan Indonesia  0.2
07 Apr 2021 20:15 Banyuwangi Indonesia  0.2
07 Apr 2021 20:15 Banjuwangi Indonesia  0.2
07 Apr 2021 20:15 Soega Indonesia  0.2
07 Apr 2021 20:15 Gilimanuk Indonesia  0.2
07 Apr 2021 20:15 Penginoeman Indonesia  0.2
07 Apr 2021 20:15 Belimbingsari Indonesia  0.2
07 Apr 2021 20:15 Tjandikesuma Indonesia  0.2
10 Apr 2021 05:15 Tamala Australia  0.2
10 Apr 2021 00:45 Bundera Bundera Australia  0.2
10 Apr 2021 00:30 Ningaloo Australia  0.2
07 Apr 2021 17:30 Kandangan Indonesia  0.2
07 Apr 2021 17:30 Gresik Indonesia  0.2
07 Apr 2021 17:30 Pangkalan Indonesia  0.2
07 Apr 2021 17:30 Batoe Porong Indonesia  0.2
07 Apr 2021 17:30 Kebanjar Indonesia  0.2
10 Apr 2021 11:45 Quobba Australia  0.2
10 Apr 2021 01:00 Shark Bay Australia  0.2
10 Apr 2021 01:00 Monkey Mia Australia  0.2
07 Apr 2021 15:00 Muntjar Indonesia  0.2
10 Apr 2021 12:00 Nanga Australia  0.2
07 Apr 2021 16:30 Ngalu Indonesia  0.2
07 Apr 2021 16:30 Tapil Indonesia  0.2
07 Apr 2021 13:00 Laboean Mapin Indonesia  0.1
07 Apr 2021 13:00 Alas Indonesia  0.1
07 Apr 2021 13:00 Pernang Indonesia  0.1
07 Apr 2021 13:00 Ponta Acoilo Timor-Leste  0.1
07 Apr 2021 13:00 Dili Timor-Leste  0.1
07 Apr 2021 13:00 Met Naro Timor-Leste  0.1
07 Apr 2021 23:15 Brassan Indonesia  0.1
07 Apr 2021 15:30 Mundjungan Indonesia  0.1
07 Apr 2021 15:30 Tasikmadoe Indonesia  0.1
07 Apr 2021 15:30 Popoh Indonesia  0.1
08 Apr 2021 03:00 Sindangsari Indonesia  0.1
08 Apr 2021 03:00 Cijulang Indonesia  0.1
08 Apr 2021 03:00 Cikalong Indonesia  0.1
08 Apr 2021 03:00 Pangadaran Indonesia  0.1
07 Apr 2021 12:15 Maoe Ndai Indonesia  0.1
07 Apr 2021 12:15 Manoeran Indonesia  0.1
07 Apr 2021 12:15 Pigadjawa Indonesia  0.1
07 Apr 2021 12:15 Nangaboa Indonesia  0.1
07 Apr 2021 12:15 Waroe Kasoe Indonesia  0.1
07 Apr 2021 12:15 Wassa Indonesia  0.1
07 Apr 2021 15:30 Latuna Indonesia  0.1
07 Apr 2021 15:30 Bagang Indonesia  0.1
07 Apr 2021 15:30 Toebal Indonesia  0.1
07 Apr 2021 15:30 Noehawaila Indonesia  0.1
07 Apr 2021 15:30 Tamelabang Indonesia  0.1
07 Apr 2021 15:30 Kabir Indonesia  0.1
07 Apr 2021 15:30 Maria Indonesia  0.1
07 Apr 2021 15:30 Alor-kecil Indonesia  0.1
07 Apr 2021 17:30 Baliga Indonesia  0.1
07 Apr 2021 17:30 Laboean Indonesia  0.1
07 Apr 2021 16:00 Pasuruan Indonesia  0.1
07 Apr 2021 16:15 Sidoardjo Indonesia  0.1
07 Apr 2021 15:45 Bayeman Indonesia  0.1
07 Apr 2021 13:15 Kekatang Indonesia  0.1
07 Apr 2021 13:15 Menango Indonesia  0.1
07 Apr 2021 13:15 Tandjungkarang Indonesia  0.1
07 Apr 2021 13:15 Telukbetung Indonesia  0.1
07 Apr 2021 13:15 Tarahan Indonesia  0.1
07 Apr 2021 14:30 Bangkulua Indonesia  0.1
07 Apr 2021 14:30 Huu Indonesia  0.1
07 Apr 2021 14:30 Madawa Indonesia  0.1
07 Apr 2021 14:30 Polo Indonesia  0.1
07 Apr 2021 12:15 Djerusu Indonesia  0.1
07 Apr 2021 18:15 Pringgabaja Indonesia  0.1
07 Apr 2021 18:15 Lombok Indonesia  0.1
07 Apr 2021 18:15 Sembelie Indonesia  0.1
10 Apr 2021 04:45 Carrarang Australia  0.1
07 Apr 2021 14:00 Reo Indonesia  0.1
07 Apr 2021 13:45 Riung Indonesia  0.1
07 Apr 2021 13:45 Boras Indonesia  0.1
07 Apr 2021 13:45 Posolik Indonesia  0.1
07 Apr 2021 13:45 Makitoenggoeng Indonesia  0.1
07 Apr 2021 17:30 Petjatu Indonesia  0.1
07 Apr 2021 17:30 Seseh Indonesia  0.1
07 Apr 2021 17:30 Kuta Indonesia  0.1
07 Apr 2021 17:30 Djimbaran Indonesia  0.1
07 Apr 2021 17:30 Boealoe Indonesia  0.1
07 Apr 2021 17:30 Benua Indonesia  0.1
07 Apr 2021 17:30 Denpasar Indonesia  0.1
07 Apr 2021 17:30 Sukawati Indonesia  0.1
07 Apr 2021 17:30 Labih Indonesia  0.1
07 Apr 2021 12:00 Kaliputjang Indonesia  0.1
07 Apr 2021 15:30 Adipala Indonesia  0.1
07 Apr 2021 15:30 Binangoen Indonesia  0.1
07 Apr 2021 15:15 Probolinggo Indonesia  0.1
07 Apr 2021 15:45 Sumberkuning Indonesia  0.1
07 Apr 2021 17:45 Poeloedae Indonesia  0.1
07 Apr 2021 13:45 Kebonongan Indonesia  0.1
07 Apr 2021 13:45 Tirtohardjo 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 09:00 Oenggae Indonesia  0.1
08 Apr 2021 09:00 Nordale Indonesia  0.1
08 Apr 2021 09:00 Korlo Indonesia  0.1
08 Apr 2021 09:00 Suaha Indonesia  0.1
08 Apr 2021 09:00 Keoen Indonesia  0.1
08 Apr 2021 09:00 Daeoerendale Indonesia  0.1
08 Apr 2021 09:00 Akle Indonesia  0.1
08 Apr 2021 09:00 Eahun Indonesia  0.1
08 Apr 2021 09:00 Pepela Indonesia  0.1
08 Apr 2021 09:00 Roti Indonesia  0.1
08 Apr 2021 09:00 Batuidu Indonesia  0.1
08 Apr 2021 09:00 Usulain Indonesia  0.1
08 Apr 2021 09:00 Oisina Indonesia  0.1
08 Apr 2021 09:00 Tablolong Indonesia  0.1
07 Apr 2021 12:15 Lungkung Indonesia  0.1
07 Apr 2021 12:15 Lembongan Indonesia  0.1
07 Apr 2021 12:15 Tojapakeh Indonesia  0.1
07 Apr 2021 12:15 Batoemadeg Indonesia  0.1
07 Apr 2021 12:15 Batoemoenggoel Indonesia  0.1
07 Apr 2021 12:15 Tanglad Indonesia  0.1
07 Apr 2021 21:00 Batuulo Indonesia  0.1
07 Apr 2021 14:15 Komodo Indonesia  0.1
08 Apr 2021 07:15 Kiluan Indonesia  0.1
07 Apr 2021 14:45 Wara Indonesia  0.1
07 Apr 2021 14:45 Sape Indonesia  0.1
07 Apr 2021 14:45 Toronaroe Indonesia  0.1
07 Apr 2021 14:45 Badjo Indonesia  0.1
07 Apr 2021 13:45 Chilachap Indonesia  0.1
07 Apr 2021 16:30 Aplame Indonesia  0.1
07 Apr 2021 16:30 Woereh Indonesia  0.1
07 Apr 2021 16:30 Lewohajong Indonesia  0.1
07 Apr 2021 16:30 Koekoewerang Indonesia  0.1
07 Apr 2021 16:30 Throng Indonesia  0.1
07 Apr 2021 16:30 Adoenara Indonesia  0.1
07 Apr 2021 16:30 Lamakera Indonesia  0.1
07 Apr 2021 16:30 Papelawe Indonesia  0.1
07 Apr 2021 16:30 Sagu Indonesia  0.1
07 Apr 2021 16:30 Wotanglolong Indonesia  0.1
07 Apr 2021 16:30 Lewokeling Indonesia  0.1
07 Apr 2021 16:30 Witihama Indonesia  0.1
07 Apr 2021 16:30 Boleng Indonesia  0.1
07 Apr 2021 16:30 Nereng Indonesia  0.1
07 Apr 2021 12:30 Lepeloang Indonesia  0.1
07 Apr 2021 12:30 Soengian Indonesia  0.1
07 Apr 2021 15:00 Gending Indonesia  0.1
07 Apr 2021 15:00 Kraksaan Indonesia  0.1
07 Apr 2021 15:00 Sampang Indonesia  0.1
08 Apr 2021 07:00 Ajah Indonesia  0.1
08 Apr 2021 07:00 Petanahan Indonesia  0.1
07 Apr 2021 15:00 Maoedoeloeng Indonesia  0.1
07 Apr 2021 14:15 Panggul Indonesia  0.1
08 Apr 2021 00:15 Grajagan Indonesia  0.1
08 Apr 2021 00:15 Gradjagan Indonesia  0.1
07 Apr 2021 21:15 Bandjarangkan Indonesia  0.1
09 Apr 2021 22:45 Carnarvon Australia  0.1
07 Apr 2021 12:30 Waikasaha Indonesia  0.1
07 Apr 2021 12:30 Kodi Indonesia  0.1
07 Apr 2021 12:30 Soema Indonesia  0.1
07 Apr 2021 12:30 Genggalo Indonesia  0.1
07 Apr 2021 15:30 Karagajar Indonesia  0.1
07 Apr 2021 15:30 Besuki Indonesia  0.1
07 Apr 2021 13:15 Umbulan Pepanggar Indonesia  0.1
07 Apr 2021 13:15 Kalianda Indonesia  0.1
07 Apr 2021 12:45 Lewoleba Indonesia  0.1
07 Apr 2021 12:45 Lamanuna Indonesia  0.1
07 Apr 2021 16:30 Sunut Indonesia  0.1
07 Apr 2021 16:30 Djareweh Indonesia  0.1
10 Apr 2021 06:15 Hamelin Pool Australia  0.1
07 Apr 2021 23:15 Paraing Liang Indonesia  0.1
07 Apr 2021 16:00 Galis Indonesia  0.1
07 Apr 2021 12:15 Uwakeka Indonesia  0.1
07 Apr 2021 12:15 Hila Indonesia  0.1
07 Apr 2021 12:15 Oewakeka Indonesia  0.1
07 Apr 2021 21:15 Djagalaja Indonesia  0.1
07 Apr 2021 21:15 Bendungan Indonesia  0.1
07 Apr 2021 14:30 Lautem Timor-Leste  0.1
08 Apr 2021 08:30 Guring Indonesia  0.1
08 Apr 2021 08:30 Kota Agung Indonesia  0.1
07 Apr 2021 15:30 Mandingan Indonesia  0.1