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 Australia
Exposed population No people in Category 1 or higher
Maximum wind speed 104 km/h
Maximum storm surge 1.7 m (11 Apr 09:15 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 1.7 m 134 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 60 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 09 Apr 2021 00:00 UTC
CategoryCountryPopulation 
Tropical StormAustralia56,453 

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 00:00 104 -
- - - - - Indonesia
GREEN 6 06 Apr 2021 12:00 68 - - - - - - -
GREEN 7 07 Apr 2021 00:00 97 - - - - - - -
GREEN 8 07 Apr 2021 12:00 90 - - - - - - -
GREEN 9 08 Apr 2021 00:00 94 - - - - - - -
GREEN 10 08 Apr 2021 12:00 86 - - - - - - -
GREEN 11 09 Apr 2021 00:00 112 -
- - - - - Australia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 09 Apr 2021 00:00 UTC
LevelCountryPopulation 
100-250 mmIndonesia, Australia6,050
+
Indonesia4,663 
Australia1,387 
50-100 mmIndonesia, Australia4,908,396
+
Indonesia4,108,116 
Australia800,280 

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 00:00 287 -
- - - - - Indonesia
Blue 6 06 Apr 2021 12:00 363 - - - - - - -
Blue 7 07 Apr 2021 00:00 271 -
- - - - - Indonesia
Blue 8 07 Apr 2021 12:00 455 - - - - - - -
Blue 9 08 Apr 2021 00:00 284 -
- - - - - Indonesia, Timor-Leste
Blue 10 08 Apr 2021 12:00 208 - - - - - - -
Blue 11 09 Apr 2021 00:00 329 6 thousand
- - - - Indonesia, Australia




Impact estimation for the next 72h

StormSurge

1.7 m

The maximum Storm surge height is  1.7m in Useless Loop, Australia. This height is estimated for 11 Apr 2021 09:15 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 09 Apr 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
11 Apr 2021 09:15 Useless Loop Australia  1.7
11 Apr 2021 11:30 Tamala Australia  1.6
11 Apr 2021 09:15 Dirk Hartog Australia  1.5
11 Apr 2021 14:30 Hamelin Pool Australia  1.5
11 Apr 2021 14:30 Hamelin Australia  1.5
11 Apr 2021 14:15 Gladstone Australia  1.4
11 Apr 2021 12:30 Nanga Australia  1.4
11 Apr 2021 12:45 Carrarang Australia  1.3
11 Apr 2021 09:30 Denham Australia  1.2
11 Apr 2021 13:30 Shark Bay Australia  1.1
11 Apr 2021 13:30 Monkey Mia Australia  1.1
11 Apr 2021 14:15 Geraldton Australia  0.8
11 Apr 2021 14:15 Drummond Cove Australia  0.8
11 Apr 2021 14:15 Popes Landing Australia  0.8
11 Apr 2021 14:15 Waggrakine Australia  0.8
11 Apr 2021 14:15 Horrocks Australia  0.8
11 Apr 2021 12:15 Kalbarri Australia  0.8
11 Apr 2021 13:45 Gregory Australia  0.8
11 Apr 2021 13:45 Lynton Australia  0.8
11 Apr 2021 14:30 Greenough Australia  0.7
11 Apr 2021 16:00 Denison Australia  0.7
11 Apr 2021 16:00 Port Denison Australia  0.7
11 Apr 2021 16:00 Dongara Australia  0.7
11 Apr 2021 09:15 Carnarvon Australia  0.6
10 Apr 2021 07:00 Learmonth Australia  0.5
11 Apr 2021 16:15 Illawong Australia  0.5
11 Apr 2021 16:00 Coolimba Australia  0.5
11 Apr 2021 16:00 Leeman Australia  0.4
11 Apr 2021 16:45 Green Head Australia  0.4
09 Apr 2021 00:30 East Lewis I Australia  0.4
09 Apr 2021 00:30 Dampier Australia  0.4
09 Apr 2021 01:00 Mardie Australia  0.3
10 Apr 2021 05:30 Exmouth Australia  0.3
09 Apr 2021 00:15 Onslow Australia  0.3
11 Apr 2021 08:15 Quobba Australia  0.3
11 Apr 2021 16:45 Jurien Australia  0.3
11 Apr 2021 07:45 Cape Cuvier Australia  0.3
09 Apr 2021 00:00 Ah Chong I Australia  0.3
09 Apr 2021 00:00 Glenroy Australia  0.3
11 Apr 2021 17:30 Cervantes Australia  0.2
09 Apr 2021 18:30 Karratha Australia  0.2
09 Apr 2021 00:00 Wickham Australia  0.2
09 Apr 2021 00:00 Point Samson Australia  0.2
09 Apr 2021 00:00 Cossack Australia  0.2
09 Apr 2021 03:45 Kandangan Indonesia  0.2
09 Apr 2021 03:45 Gresik Indonesia  0.2
09 Apr 2021 03:45 Pangkalan Indonesia  0.2
09 Apr 2021 03:45 Batoe Porong Indonesia  0.2
09 Apr 2021 03:45 Kebanjar Indonesia  0.2
11 Apr 2021 04:15 Warroora Australia  0.2
11 Apr 2021 18:15 Lancelin Australia  0.2
11 Apr 2021 05:00 Gnaraloo Australia  0.2
09 Apr 2021 00:00 Port Hedland Australia  0.2
09 Apr 2021 00:00 Wedgefield Australia  0.2
11 Apr 2021 18:30 Seabird Australia  0.2
09 Apr 2021 03:15 Baliga Indonesia  0.2
09 Apr 2021 03:15 Laboean Indonesia  0.2
11 Apr 2021 18:45 Guilderton Australia  0.2
11 Apr 2021 19:30 Two Rocks Australia  0.2
11 Apr 2021 19:30 Yanchep Australia  0.2
11 Apr 2021 19:15 Quinns Rock Australia  0.2
09 Apr 2021 05:30 Pardoo Australia  0.2
09 Apr 2021 02:15 Sidoardjo Indonesia  0.2
09 Apr 2021 07:00 Condon Australia  0.2
11 Apr 2021 17:45 Binningup Australia  0.2
11 Apr 2021 17:45 Myalup Australia  0.2
09 Apr 2021 02:15 Pasuruan Indonesia  0.2
09 Apr 2021 07:15 Muntjar Indonesia  0.2
09 Apr 2021 07:15 Blimbing Indonesia  0.2
09 Apr 2021 07:15 Dadapan Indonesia  0.2
09 Apr 2021 07:15 Banyuwangi Indonesia  0.2
09 Apr 2021 07:15 Banjuwangi Indonesia  0.2
09 Apr 2021 07:15 Gilimanuk Indonesia  0.2
09 Apr 2021 07:15 Penginoeman Indonesia  0.2
09 Apr 2021 07:15 Belimbingsari Indonesia  0.2
09 Apr 2021 07:15 Tjandikesuma Indonesia  0.2
10 Apr 2021 19:45 Cilancang Indonesia  0.2
10 Apr 2021 19:45 Cirebon Indonesia  0.2
11 Apr 2021 17:45 Falcon Australia  0.2
11 Apr 2021 17:45 Safety Bay Australia  0.2
11 Apr 2021 17:45 Mandurah Australia  0.2
11 Apr 2021 17:45 Warnbro Australia  0.2
11 Apr 2021 17:45 Peelhurst Australia  0.2
11 Apr 2021 17:45 Singleton Australia  0.2
11 Apr 2021 17:45 Karnup Australia  0.2
09 Apr 2021 01:45 Bayeman Indonesia  0.2
11 Apr 2021 19:45 Mullalloo Beach Australia  0.2
09 Apr 2021 05:45 Broome Australia  0.2
10 Apr 2021 20:00 Karangampel Indonesia  0.2
09 Apr 2021 06:00 Thangoo Australia  0.2
11 Apr 2021 18:15 Fremantle Australia  0.2
11 Apr 2021 18:15 North Beach Australia  0.2
11 Apr 2021 18:15 North Fremantle Australia  0.2
11 Apr 2021 18:15 Scarborough Australia  0.2
11 Apr 2021 18:15 Mosman Park Australia  0.2
11 Apr 2021 18:15 Cottesloe Australia  0.2
11 Apr 2021 18:15 East Fremantle Australia  0.2
11 Apr 2021 18:15 Coogee Australia  0.2
10 Apr 2021 19:45 Losan Indonesia  0.2
11 Apr 2021 19:00 Vasse Australia  0.2
11 Apr 2021 19:00 Broadwater Australia  0.2
11 Apr 2021 19:00 Busselton Australia  0.2
11 Apr 2021 19:00 Wonnerup Australia  0.2
11 Apr 2021 19:00 Ludlow Australia  0.2
09 Apr 2021 06:45 Soega Indonesia  0.2
11 Apr 2021 20:15 Peppermint Grove Australia  0.2
11 Apr 2021 20:15 Swanbourne Australia  0.2
11 Apr 2021 20:15 Claremont Australia  0.2
11 Apr 2021 20:15 Bicton Australia  0.2
11 Apr 2021 20:30 Spearwood Australia  0.2
11 Apr 2021 20:30 Wattleup Australia  0.2
11 Apr 2021 18:30 Rockingham Australia  0.2
11 Apr 2021 17:30 Dalyellup Australia  0.2
11 Apr 2021 17:30 Bunbury Australia  0.2
11 Apr 2021 17:30 Picton Australia  0.2
11 Apr 2021 17:30 Eaton Australia  0.2
11 Apr 2021 17:30 Burragenup Australia  0.2
11 Apr 2021 17:30 Australind Australia  0.2
09 Apr 2021 02:15 Sumberkuning Indonesia  0.2
11 Apr 2021 18:00 Gunyulgup Australia  0.1
11 Apr 2021 18:00 Yallingup Australia  0.1
11 Apr 2021 18:00 Dunsborough Australia  0.1
11 Apr 2021 18:00 Quindalup Australia  0.1
09 Apr 2021 01:45 Probolinggo Indonesia  0.1
09 Apr 2021 05:00 Waterbank Australia  0.1
11 Apr 2021 04:00 Cardabia Australia  0.1
11 Apr 2021 20:15 Gracetown Australia  0.1
09 Apr 2021 02:15 Sampang Indonesia  0.1
09 Apr 2021 06:30 Taju Indonesia  0.1
09 Apr 2021 06:30 Bulumanis Indonesia  0.1
09 Apr 2021 06:30 Batangan Indonesia  0.1
09 Apr 2021 06:30 Rembang Indonesia  0.1
11 Apr 2021 11:30 Derby Australia  0.1
09 Apr 2021 02:15 Gending Indonesia  0.1
09 Apr 2021 01:45 Kraksaan Indonesia  0.1
10 Apr 2021 19:30 Bulakamba Indonesia  0.1
09 Apr 2021 02:15 Karagajar Indonesia  0.1
09 Apr 2021 09:45 Brassan Indonesia  0.1
10 Apr 2021 20:00 Klampok Indonesia  0.1
09 Apr 2021 08:00 Kencong Indonesia  0.1
09 Apr 2021 08:00 Lodjedjer Indonesia  0.1
09 Apr 2021 02:00 Galis Indonesia  0.1
09 Apr 2021 02:30 Besuki Indonesia  0.1
09 Apr 2021 02:45 Prenduan Indonesia  0.1
09 Apr 2021 04:30 Sidaju Indonesia  0.1
09 Apr 2021 02:15 Djate Indonesia  0.1
09 Apr 2021 02:15 Bluto Indonesia  0.1
09 Apr 2021 02:15 Saroka Indonesia  0.1
09 Apr 2021 02:15 Bundan Indonesia  0.1
09 Apr 2021 02:45 Mandingan Indonesia  0.1
10 Apr 2021 15:15 Maringgai Indonesia  0.1
09 Apr 2021 07:00 Oeboeah Indonesia  0.1
09 Apr 2021 07:00 Hansisi Indonesia  0.1
09 Apr 2021 07:00 Naioni Indonesia  0.1
09 Apr 2021 07:00 Tenau Indonesia  0.1
09 Apr 2021 07:00 Manoelairoti Indonesia  0.1
09 Apr 2021 07:00 Namosain Indonesia  0.1
09 Apr 2021 07:00 Kupang Indonesia  0.1
09 Apr 2021 07:00 Soelamoe Indonesia  0.1
09 Apr 2021 07:00 Maoelafa Indonesia  0.1
09 Apr 2021 07:00 Pitai Indonesia  0.1
09 Apr 2021 07:00 Manikin Indonesia  0.1
09 Apr 2021 07:00 Pariti Indonesia  0.1
09 Apr 2021 07:00 Naimoeti Indonesia  0.1
09 Apr 2021 05:00 Tambak Indonesia  0.1
09 Apr 2021 05:00 Sangkapura Indonesia  0.1
10 Apr 2021 21:30 Indramaju Indonesia  0.1
09 Apr 2021 02:15 Sumenep Indonesia  0.1
09 Apr 2021 03:00 Bundera Bundera Australia  0.1
09 Apr 2021 02:15 Gedugan Indonesia  0.1
10 Apr 2021 02:00 Tambajangan Indonesia  0.1
10 Apr 2021 02:00 Kajuwaru Indonesia  0.1
10 Apr 2021 03:30 Ningaloo Australia  0.1
09 Apr 2021 02:30 Situbondo Indonesia  0.1
10 Apr 2021 15:45 Domas Indonesia  0.1
10 Apr 2021 15:45 Tanara Indonesia  0.1
10 Apr 2021 15:45 Ketapang Indonesia  0.1
09 Apr 2021 08:30 Mangkang-Kulan Indonesia  0.1
09 Apr 2021 08:30 Djomblang Indonesia  0.1
09 Apr 2021 08:30 Semarang Indonesia  0.1
09 Apr 2021 08:30 Karangroto Indonesia  0.1
09 Apr 2021 13:45 Pedes Indonesia  0.1
09 Apr 2021 13:45 Sungaibuntu Indonesia  0.1
09 Apr 2021 13:45 Pasirputih Indonesia  0.1
09 Apr 2021 13:45 Muaratjilamaja Indonesia  0.1
09 Apr 2021 08:00 Mundjungan Indonesia  0.1
09 Apr 2021 08:00 Tasikmadoe Indonesia  0.1
09 Apr 2021 08:00 Popoh Indonesia  0.1
09 Apr 2021 02:45 Ketapang Indonesia  0.1
09 Apr 2021 02:45 Kelapang Indonesia  0.1
09 Apr 2021 02:45 Sokabana Indonesia  0.1
09 Apr 2021 02:30 Djangdjangan Indonesia  0.1
09 Apr 2021 02:45 Tlagabiru Indonesia  0.1
09 Apr 2021 02:45 Banjoeates Indonesia  0.1
09 Apr 2021 02:45 Ambunten-timu Indonesia  0.1
09 Apr 2021 02:45 Belukares Indonesia  0.1
09 Apr 2021 02:45 Batuputihkenek Indonesia  0.1
09 Apr 2021 04:45 Kennedys Cottage Australia  0.1
09 Apr 2021 02:30 Kesambirampak Indonesia  0.1
09 Apr 2021 08:45 Kendal Indonesia  0.1
09 Apr 2021 04:30 Aermata Indonesia  0.1
09 Apr 2021 04:30 Klampis Indonesia  0.1
09 Apr 2021 04:30 Sapulu Indonesia  0.1
09 Apr 2021 15:00 Tipar Indonesia  0.1
09 Apr 2021 15:00 Balubuk Indonesia  0.1
10 Apr 2021 15:15 Kramat Indonesia  0.1
10 Apr 2021 15:15 Cengkarengbelakang Indonesia  0.1
09 Apr 2021 02:30 Lasem Indonesia  0.1
09 Apr 2021 09:45 Banjoebiroe Indonesia  0.1
09 Apr 2021 09:45 Cupel Indonesia  0.1
09 Apr 2021 09:45 Banjuwedang Indonesia  0.1
09 Apr 2021 09:45 Prancak Indonesia  0.1
09 Apr 2021 09:45 Negara Indonesia  0.1