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 104 km/h
Maximum storm surge 0.4 m (07 Apr 02:00 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 284 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 3 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 00:00 UTC
CategoryCountryPopulation 
Tropical StormAustralia2,976 

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 00:00 230 -
- - - - - Australia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 07 Apr 2021 00:00 UTC
LevelCountryPopulation 
50-100 mmAustralia508 

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 00:00 746 -
- - - - - Australia




Impact estimation for the next 72h

StormSurge

0.4 m

The maximum Storm surge height is  0.4m in Broome, Australia. This height is estimated for 07 Apr 2021 02:00 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 07 Apr 2021 00:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
07 Apr 2021 02:00 Broome Australia  0.4
07 Apr 2021 02:00 Thangoo Australia  0.4
07 Apr 2021 06:00 Dampier Australia  0.4
07 Apr 2021 06:00 Karratha Australia  0.4
07 Apr 2021 05:30 Point Samson Australia  0.3
07 Apr 2021 05:30 Cossack Australia  0.3
07 Apr 2021 06:00 Wickham Australia  0.3
07 Apr 2021 05:00 Port Hedland Australia  0.3
07 Apr 2021 05:30 Wedgefield Australia  0.3
07 Apr 2021 00:45 Pender Australia  0.3
07 Apr 2021 00:15 Waterbank Australia  0.3
07 Apr 2021 06:00 East Lewis I Australia  0.3
07 Apr 2021 00:30 Kennedys Cottage Australia  0.3
07 Apr 2021 02:15 Kollan I Australia  0.3
07 Apr 2021 05:45 Mardie Australia  0.3
07 Apr 2021 06:00 Derby Australia  0.3
07 Apr 2021 03:30 Pardoo Australia  0.2
07 Apr 2021 04:15 Condon Australia  0.2
07 Apr 2021 04:15 Kencong Indonesia  0.2
07 Apr 2021 04:15 Lodjedjer Indonesia  0.2
07 Apr 2021 06:00 Ah Chong I Australia  0.2
07 Apr 2021 04:15 Sindangsari Indonesia  0.2
07 Apr 2021 04:15 Cijulang Indonesia  0.2
07 Apr 2021 04:15 Cikalong Indonesia  0.2
07 Apr 2021 04:15 Pangadaran Indonesia  0.2
07 Apr 2021 00:15 Mboe Eain Indonesia  0.2
07 Apr 2021 00:15 Nembrala Indonesia  0.2
07 Apr 2021 00:15 Abuan Indonesia  0.2
07 Apr 2021 00:15 Ulua Indonesia  0.2
07 Apr 2021 00:15 Toedameda Indonesia  0.2
07 Apr 2021 00:15 Batutuah Indonesia  0.2
07 Apr 2021 00:15 Oeseda Indonesia  0.2
07 Apr 2021 03:15 Huu Indonesia  0.2
07 Apr 2021 03:15 Madawa Indonesia  0.2
07 Apr 2021 03:15 Polo Indonesia  0.2
07 Apr 2021 03:00 Brassan Indonesia  0.2
07 Apr 2021 03:00 Muntjar Indonesia  0.2
07 Apr 2021 03:00 Blimbing Indonesia  0.2
07 Apr 2021 03:00 Dadapan Indonesia  0.2
07 Apr 2021 03:00 Banyuwangi Indonesia  0.2
07 Apr 2021 03:00 Banjuwangi Indonesia  0.2
07 Apr 2021 03:00 Gilimanuk Indonesia  0.2
07 Apr 2021 03:00 Penginoeman Indonesia  0.2
07 Apr 2021 03:00 Belimbingsari Indonesia  0.2
07 Apr 2021 03:00 Tjandikesuma Indonesia  0.2
07 Apr 2021 00:30 Kandangan Indonesia  0.2
07 Apr 2021 00:30 Gresik Indonesia  0.2
07 Apr 2021 00:30 Pangkalan Indonesia  0.2
07 Apr 2021 00:30 Batoe Porong Indonesia  0.2
07 Apr 2021 00:30 Kebanjar Indonesia  0.2
07 Apr 2021 02:15 Chilachap Indonesia  0.2
07 Apr 2021 02:15 Adipala Indonesia  0.2
07 Apr 2021 05:45 Onslow Australia  0.2
07 Apr 2021 03:30 Soega Indonesia  0.2
07 Apr 2021 05:15 Mundjungan Indonesia  0.2
07 Apr 2021 05:15 Tasikmadoe Indonesia  0.2
07 Apr 2021 05:15 Popoh Indonesia  0.2
07 Apr 2021 04:30 Oenggae Indonesia  0.2
07 Apr 2021 04:30 Nordale Indonesia  0.2
07 Apr 2021 04:30 Korlo Indonesia  0.2
07 Apr 2021 04:30 Suaha Indonesia  0.2
07 Apr 2021 04:30 Keoen Indonesia  0.2
07 Apr 2021 04:30 Daeoerendale Indonesia  0.2
07 Apr 2021 04:30 Akle Indonesia  0.2
07 Apr 2021 04:30 Eahun Indonesia  0.2
07 Apr 2021 04:30 Pepela Indonesia  0.2
07 Apr 2021 04:30 Roti Indonesia  0.2
07 Apr 2021 04:30 Batuidu Indonesia  0.2
07 Apr 2021 04:30 Usulain Indonesia  0.2
07 Apr 2021 04:30 Oisina Indonesia  0.2
07 Apr 2021 04:30 Tablolong Indonesia  0.2
07 Apr 2021 03:45 Oeboeah Indonesia  0.2
07 Apr 2021 03:45 Hansisi Indonesia  0.2
07 Apr 2021 03:45 Naioni Indonesia  0.2
07 Apr 2021 03:45 Tenau Indonesia  0.2
07 Apr 2021 03:45 Manoelairoti Indonesia  0.2
07 Apr 2021 03:45 Namosain Indonesia  0.2
07 Apr 2021 03:45 Kupang Indonesia  0.2
07 Apr 2021 03:45 Soelamoe Indonesia  0.2
07 Apr 2021 03:45 Maoelafa Indonesia  0.2
07 Apr 2021 03:45 Pitai Indonesia  0.2
07 Apr 2021 03:45 Manikin Indonesia  0.2
07 Apr 2021 03:45 Pariti Indonesia  0.2
07 Apr 2021 03:45 Naimoeti Indonesia  0.2
07 Apr 2021 01:15 Ambunten-timu Indonesia  0.2
07 Apr 2021 01:15 Belukares Indonesia  0.2
07 Apr 2021 01:15 Sumenep Indonesia  0.2
07 Apr 2021 01:15 Batuputihkenek Indonesia  0.2
07 Apr 2021 04:00 Binangoen Indonesia  0.2
07 Apr 2021 04:00 Ajah Indonesia  0.2
07 Apr 2021 06:00 Bangkulua Indonesia  0.2
07 Apr 2021 00:00 Baliga Indonesia  0.2
07 Apr 2021 00:00 Laboean Indonesia  0.2
07 Apr 2021 00:00 Taju Indonesia  0.1
07 Apr 2021 00:00 Bulumanis Indonesia  0.1
07 Apr 2021 00:00 Batangan Indonesia  0.1
07 Apr 2021 00:00 Rembang Indonesia  0.1
07 Apr 2021 01:15 Tlagabiru Indonesia  0.1
07 Apr 2021 01:15 Banjoeates Indonesia  0.1
07 Apr 2021 01:15 Ketapang Indonesia  0.1
07 Apr 2021 01:15 Kelapang Indonesia  0.1
07 Apr 2021 04:00 Maoe Ndai Indonesia  0.1
07 Apr 2021 04:00 Manoeran Indonesia  0.1
07 Apr 2021 04:00 Pigadjawa Indonesia  0.1
07 Apr 2021 04:00 Nangaboa Indonesia  0.1
07 Apr 2021 04:00 Waroe Kasoe Indonesia  0.1
07 Apr 2021 04:00 Wassa Indonesia  0.1
07 Apr 2021 01:45 Sokabana Indonesia  0.1
07 Apr 2021 05:45 Kaliputjang Indonesia  0.1
07 Apr 2021 03:45 Sunut Indonesia  0.1
07 Apr 2021 03:45 Pringgabaja Indonesia  0.1
07 Apr 2021 02:00 Sapulu Indonesia  0.1
07 Apr 2021 04:45 Sape Indonesia  0.1
07 Apr 2021 04:45 Toronaroe Indonesia  0.1
07 Apr 2021 04:45 Badjo Indonesia  0.1
07 Apr 2021 04:30 Ponta Acoilo Timor-Leste  0.1
07 Apr 2021 04:30 Dili Timor-Leste  0.1
07 Apr 2021 04:30 Met Naro Timor-Leste  0.1
07 Apr 2021 01:15 Panggul Indonesia  0.1
07 Apr 2021 05:45 Glenroy Australia  0.1
07 Apr 2021 04:30 Lapatawang Indonesia  0.1
07 Apr 2021 04:30 Kirihei Indonesia  0.1
07 Apr 2021 04:30 Kampoeng Melolo Indonesia  0.1
07 Apr 2021 04:30 Melolo Indonesia  0.1
07 Apr 2021 04:30 Jawang Indonesia  0.1
07 Apr 2021 04:30 Tapil Indonesia  0.1
07 Apr 2021 02:15 Aermata Indonesia  0.1
07 Apr 2021 02:15 Klampis Indonesia  0.1
07 Apr 2021 03:45 Sidaju Indonesia  0.1
07 Apr 2021 04:30 Condro Indonesia  0.1
07 Apr 2021 04:15 Maoedoeloeng Indonesia  0.1
07 Apr 2021 04:15 Waingapu Indonesia  0.1
07 Apr 2021 04:15 Matawai Indonesia  0.1
07 Apr 2021 04:15 Pajeti Indonesia  0.1
07 Apr 2021 04:45 Aplame Indonesia  0.1
07 Apr 2021 04:45 Woereh Indonesia  0.1
07 Apr 2021 04:45 Lewohajong Indonesia  0.1
07 Apr 2021 04:45 Koekoewerang Indonesia  0.1
07 Apr 2021 04:45 Throng Indonesia  0.1
07 Apr 2021 04:45 Adoenara Indonesia  0.1
07 Apr 2021 04:45 Lamakera Indonesia  0.1
07 Apr 2021 04:45 Papelawe Indonesia  0.1
07 Apr 2021 04:45 Sagu Indonesia  0.1
07 Apr 2021 04:45 Wotanglolong Indonesia  0.1
07 Apr 2021 04:45 Lewokeling Indonesia  0.1
07 Apr 2021 04:45 Witihama Indonesia  0.1
07 Apr 2021 04:45 Boleng Indonesia  0.1
07 Apr 2021 04:45 Nereng Indonesia  0.1
07 Apr 2021 05:15 Ngalu Indonesia  0.1
07 Apr 2021 00:30 Tambak Indonesia  0.1
07 Apr 2021 00:30 Sangkapura Indonesia  0.1
07 Apr 2021 04:00 Petjatu Indonesia  0.1
07 Apr 2021 04:00 Seseh Indonesia  0.1
07 Apr 2021 04:00 Kuta Indonesia  0.1
07 Apr 2021 04:00 Djimbaran Indonesia  0.1
07 Apr 2021 04:00 Boealoe Indonesia  0.1
07 Apr 2021 04:00 Benua Indonesia  0.1
07 Apr 2021 04:00 Denpasar Indonesia  0.1
07 Apr 2021 04:00 Sukawati Indonesia  0.1
07 Apr 2021 05:30 Lombok Indonesia  0.1
07 Apr 2021 05:30 Sembelie Indonesia  0.1
07 Apr 2021 05:00 Batuulo Indonesia  0.1
07 Apr 2021 05:00 Lakohembi Indonesia  0.1
07 Apr 2021 00:00 Petanahan Indonesia  0.1
07 Apr 2021 05:00 Exmouth Australia  0.1
07 Apr 2021 04:15 Banjoebiroe Indonesia  0.1
07 Apr 2021 04:15 Cupel Indonesia  0.1
07 Apr 2021 04:15 Prancak Indonesia  0.1
07 Apr 2021 04:15 Negara Indonesia  0.1
07 Apr 2021 05:15 Pahanuma Indonesia  0.1
07 Apr 2021 05:15 Belowa Indonesia  0.1
07 Apr 2021 05:15 Taoabi Indonesia  0.1
07 Apr 2021 00:00 Sidoardjo Indonesia  0.1
07 Apr 2021 00:00 Lasem Indonesia  0.1
07 Apr 2021 02:00 Lombang Indonesia  0.1
07 Apr 2021 02:00 Banraas Indonesia  0.1
07 Apr 2021 00:15 Katewela Indonesia  0.1
07 Apr 2021 00:15 Karendi Indonesia  0.1
07 Apr 2021 00:15 Memboro Indonesia  0.1
07 Apr 2021 05:30 Lepeloang Indonesia  0.1
07 Apr 2021 05:30 Soengian Indonesia  0.1
07 Apr 2021 04:45 Losan Indonesia  0.1
07 Apr 2021 02:45 Remen Indonesia  0.1
07 Apr 2021 02:45 Plosokere Indonesia  0.1
07 Apr 2021 02:45 Djenu Indonesia  0.1
07 Apr 2021 02:45 Tuban Indonesia  0.1
07 Apr 2021 02:45 Semanding Indonesia  0.1
07 Apr 2021 02:45 Podang Indonesia  0.1
07 Apr 2021 02:15 Djagalaja Indonesia  0.1
07 Apr 2021 04:30 Djepitoe Indonesia  0.1
07 Apr 2021 02:15 Brondong Indonesia  0.1
07 Apr 2021 06:00 Grajagan Indonesia  0.1
07 Apr 2021 06:00 Gradjagan Indonesia  0.1
07 Apr 2021 02:00 Bendungan Indonesia  0.1
07 Apr 2021 02:00 Galur Indonesia  0.1
07 Apr 2021 00:00 Sumberkuning Indonesia  0.1
07 Apr 2021 06:00 Badjera Indonesia  0.1
07 Apr 2021 06:00 Krambitan Indonesia  0.1
07 Apr 2021 05:00 Labih Indonesia  0.1
07 Apr 2021 04:45 Cilancang Indonesia  0.1
07 Apr 2021 04:45 Cirebon Indonesia  0.1