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 83 km/h
Maximum storm surge 1.8 m (11 Apr 09:30 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
ECMWF Current 83 km/h 1.8 m 193 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 12:00 UTC
CategoryCountryPopulation 
Tropical StormAustralia58289 

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 00:00 104 - - - - - - -
GREEN 12 09 Apr 2021 12:00 119 -
- - - - - Australia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 09 Apr 2021 12:00 UTC
LevelCountryPopulation 
100-250 mmIndonesia434 
50-100 mmIndonesia, Australia966395
+
Indonesia945438 
Australia20957 

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 00:00 134 -
- - - - - Indonesia
Blue 12 09 Apr 2021 12:00 488 Few people
- - - - Indonesia, Australia




Impact estimation for the next 72h

StormSurge

1.8 m

The maximum Storm surge height is  1.8m in Useless Loop, Australia. This height is estimated for 11 Apr 2021 09:30 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.

Calculation based on the bulletin of 09 Apr 2021 12:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
11 Apr 2021 09:30 Useless Loop Australia  1.8
11 Apr 2021 11:45 Tamala Australia  1.7
11 Apr 2021 09:45 Dirk Hartog Australia  1.6
11 Apr 2021 15:15 Hamelin Pool Australia  1.5
11 Apr 2021 15:15 Hamelin Australia  1.5
11 Apr 2021 12:45 Nanga Australia  1.4
11 Apr 2021 14:30 Gladstone Australia  1.4
11 Apr 2021 12:45 Carrarang Australia  1.4
11 Apr 2021 10:15 Denham Australia  1.3
11 Apr 2021 14:15 Shark Bay Australia  1.2
11 Apr 2021 14:15 Monkey Mia Australia  1.2
11 Apr 2021 14:45 Horrocks Australia  0.9
11 Apr 2021 14:45 Drummond Cove Australia  0.9
11 Apr 2021 14:45 Popes Landing Australia  0.9
11 Apr 2021 15:00 Geraldton Australia  0.9
11 Apr 2021 15:00 Waggrakine Australia  0.9
11 Apr 2021 14:30 Gregory Australia  0.9
11 Apr 2021 14:30 Lynton Australia  0.9
11 Apr 2021 16:30 Denison Australia  0.9
11 Apr 2021 16:30 Port Denison Australia  0.9
11 Apr 2021 16:30 Dongara Australia  0.9
11 Apr 2021 13:15 Kalbarri Australia  0.9
11 Apr 2021 15:00 Greenough Australia  0.8
11 Apr 2021 16:30 Illawong Australia  0.6
11 Apr 2021 09:00 Carnarvon Australia  0.6
10 Apr 2021 09:45 Learmonth Australia  0.6
11 Apr 2021 16:45 Coolimba Australia  0.6
11 Apr 2021 16:45 Leeman Australia  0.5
11 Apr 2021 16:45 Green Head Australia  0.4
10 Apr 2021 08:30 Exmouth Australia  0.4
11 Apr 2021 07:30 Quobba Australia  0.3
11 Apr 2021 07:45 Cape Cuvier Australia  0.3
10 Apr 2021 08:45 Onslow Australia  0.3
11 Apr 2021 16:45 Jurien Australia  0.3
10 Apr 2021 04:45 Mardie Australia  0.3
10 Apr 2021 08:45 Glenroy Australia  0.3
11 Apr 2021 17:15 Cervantes Australia  0.3
09 Apr 2021 18:00 Dampier Australia  0.2
09 Apr 2021 18:00 Karratha Australia  0.2
11 Apr 2021 04:15 Warroora Australia  0.2
09 Apr 2021 18:30 East Lewis I Australia  0.2
09 Apr 2021 17:15 Ah Chong I Australia  0.2
11 Apr 2021 07:30 Gnaraloo Australia  0.2
09 Apr 2021 17:15 Point Samson Australia  0.2
09 Apr 2021 17:15 Cossack Australia  0.2
09 Apr 2021 16:45 Wickham Australia  0.2
11 Apr 2021 16:45 Lancelin Australia  0.2
12 Apr 2021 04:15 Kandangan Indonesia  0.2
12 Apr 2021 04:15 Gresik Indonesia  0.2
12 Apr 2021 04:15 Pangkalan Indonesia  0.2
12 Apr 2021 04:15 Batoe Porong Indonesia  0.2
12 Apr 2021 04:15 Kebanjar Indonesia  0.2
11 Apr 2021 17:30 Falcon Australia  0.2
11 Apr 2021 17:30 Safety Bay Australia  0.2
11 Apr 2021 17:30 Mandurah Australia  0.2
11 Apr 2021 17:30 Warnbro Australia  0.2
11 Apr 2021 17:30 Peelhurst Australia  0.2
11 Apr 2021 17:30 Singleton Australia  0.2
11 Apr 2021 17:30 Karnup Australia  0.2
12 Apr 2021 03:30 Maringgai Indonesia  0.2
11 Apr 2021 17:15 Seabird Australia  0.2
11 Apr 2021 17:15 Guilderton Australia  0.2
12 Apr 2021 03:00 Domas Indonesia  0.2
12 Apr 2021 03:00 Tanara Indonesia  0.2
12 Apr 2021 03:00 Ketapang Indonesia  0.2
12 Apr 2021 12:00 Derby 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 Binningup Australia  0.2
11 Apr 2021 17:30 Myalup 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
12 Apr 2021 02:30 Kramat Indonesia  0.2
12 Apr 2021 03:45 Baliga Indonesia  0.2
12 Apr 2021 03:45 Laboean Indonesia  0.2
09 Apr 2021 17:30 Port Hedland Australia  0.2
09 Apr 2021 17:30 Wedgefield Australia  0.2
12 Apr 2021 03:00 Cengkarengbelakang Indonesia  0.2
12 Apr 2021 03:00 Tipar Indonesia  0.2
11 Apr 2021 18:15 Two Rocks Australia  0.2
11 Apr 2021 02:15 Cardabia Australia  0.2
10 Apr 2021 20:00 Cilancang Indonesia  0.2
10 Apr 2021 20:00 Cirebon Indonesia  0.2
11 Apr 2021 17:45 Rockingham Australia  0.2
11 Apr 2021 18:15 Fremantle Australia  0.2
11 Apr 2021 18:15 North Fremantle 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
11 Apr 2021 18:15 Peppermint Grove Australia  0.2
11 Apr 2021 18:15 Swanbourne Australia  0.2
11 Apr 2021 18:15 Claremont Australia  0.2
11 Apr 2021 18:15 Spearwood Australia  0.2
11 Apr 2021 18:15 Bicton Australia  0.2
11 Apr 2021 18:15 Wattleup Australia  0.2
10 Apr 2021 20:00 Karangampel Indonesia  0.2
11 Apr 2021 18:15 North Beach Australia  0.2
11 Apr 2021 18:15 Scarborough Australia  0.2
11 Apr 2021 18:00 Yanchep Australia  0.2
12 Apr 2021 09:45 Losan Indonesia  0.2
12 Apr 2021 02:30 Pasuruan Indonesia  0.2
12 Apr 2021 09:15 Bulakamba Indonesia  0.2
11 Apr 2021 18:15 Quinns Rock Australia  0.2
11 Apr 2021 16:30 Dunsborough Australia  0.2
11 Apr 2021 16:30 Quindalup Australia  0.2
11 Apr 2021 16:30 Vasse Australia  0.2
11 Apr 2021 16:30 Broadwater Australia  0.2
11 Apr 2021 16:30 Busselton Australia  0.2
11 Apr 2021 16:30 Wonnerup Australia  0.2
11 Apr 2021 18:00 Mullalloo Beach Australia  0.2
12 Apr 2021 02:45 Sidoardjo Indonesia  0.2
09 Apr 2021 23:15 Kencong Indonesia  0.1
09 Apr 2021 23:15 Lodjedjer Indonesia  0.1
12 Apr 2021 09:00 Pekalongan Indonesia  0.1
12 Apr 2021 09:00 Sidja Indonesia  0.1
11 Apr 2021 17:15 Gunyulgup Australia  0.1
11 Apr 2021 17:15 Yallingup Australia  0.1
12 Apr 2021 09:45 Klampok Indonesia  0.1
12 Apr 2021 03:00 Merak Indonesia  0.1
12 Apr 2021 02:30 Balubuk Indonesia  0.1
12 Apr 2021 08:30 Mangkang-Kulan Indonesia  0.1
12 Apr 2021 08:30 Djomblang Indonesia  0.1
12 Apr 2021 08:30 Semarang Indonesia  0.1
12 Apr 2021 08:30 Karangroto Indonesia  0.1
11 Apr 2021 16:30 Ludlow Australia  0.1
12 Apr 2021 02:30 Bayeman Indonesia  0.1
10 Apr 2021 06:30 Broome Australia  0.1
12 Apr 2021 09:15 Kendal Indonesia  0.1
12 Apr 2021 02:45 Ketapang Indonesia  0.1
10 Apr 2021 06:15 Thangoo Australia  0.1
12 Apr 2021 02:15 Sumberkuning Indonesia  0.1
11 Apr 2021 17:15 Gracetown Australia  0.1
09 Apr 2021 15:15 Blimbing Indonesia  0.1
09 Apr 2021 15:15 Dadapan Indonesia  0.1
09 Apr 2021 15:15 Banyuwangi Indonesia  0.1
09 Apr 2021 15:15 Banjuwangi Indonesia  0.1
09 Apr 2021 15:15 Soega Indonesia  0.1
09 Apr 2021 15:15 Gilimanuk Indonesia  0.1
09 Apr 2021 15:15 Penginoeman Indonesia  0.1
09 Apr 2021 15:15 Belimbingsari Indonesia  0.1
09 Apr 2021 15:15 Tjandikesuma Indonesia  0.1
09 Apr 2021 14:30 Ningaloo Australia  0.1
12 Apr 2021 05:30 Sidaju Indonesia  0.1
09 Apr 2021 18:00 Muntjar Indonesia  0.1
12 Apr 2021 09:00 Wedung Indonesia  0.1
12 Apr 2021 09:00 Kedungmalang Indonesia  0.1
12 Apr 2021 09:30 Tegal Indonesia  0.1
12 Apr 2021 09:15 Petaroekan Indonesia  0.1
12 Apr 2021 09:15 Sigedang Indonesia  0.1
12 Apr 2021 02:15 Probolinggo Indonesia  0.1
11 Apr 2021 21:15 Wanasari Indonesia  0.1
12 Apr 2021 02:15 Gending Indonesia  0.1
12 Apr 2021 02:15 Kraksaan Indonesia  0.1
12 Apr 2021 02:15 Sampang Indonesia  0.1
09 Apr 2021 14:45 Menango Indonesia  0.1
09 Apr 2021 14:45 Tandjungkarang Indonesia  0.1
09 Apr 2021 14:45 Telukbetung Indonesia  0.1
09 Apr 2021 14:45 Tarahan Indonesia  0.1
12 Apr 2021 09:30 Jepara Indonesia  0.1
12 Apr 2021 09:30 Bugel Indonesia  0.1
12 Apr 2021 09:30 Karanggondang Indonesia  0.1
09 Apr 2021 15:45 Bundera Bundera Australia  0.1
12 Apr 2021 08:45 Pemalang Indonesia  0.1
12 Apr 2021 04:30 Plosokere Indonesia  0.1
12 Apr 2021 04:30 Djenu Indonesia  0.1
12 Apr 2021 04:30 Tuban Indonesia  0.1
12 Apr 2021 04:30 Semanding Indonesia  0.1
12 Apr 2021 04:30 Podang Indonesia  0.1
12 Apr 2021 04:30 Brondong Indonesia  0.1
10 Apr 2021 06:00 Taju Indonesia  0.1
10 Apr 2021 06:00 Bulumanis Indonesia  0.1
10 Apr 2021 06:00 Batangan Indonesia  0.1
10 Apr 2021 06:00 Rembang Indonesia  0.1
12 Apr 2021 03:45 Ambunten-timu Indonesia  0.1
12 Apr 2021 03:45 Belukares Indonesia  0.1
12 Apr 2021 03:45 Sumenep Indonesia  0.1
12 Apr 2021 02:00 Karagajar Indonesia  0.1
09 Apr 2021 14:45 Kiluan Indonesia  0.1
09 Apr 2021 14:45 Kekatang 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
12 Apr 2021 02:45 Bakau Indonesia  0.1
12 Apr 2021 12:00 Makasar Indonesia  0.1
12 Apr 2021 12:00 Manda Indonesia  0.1
12 Apr 2021 02:00 Galis Indonesia  0.1
12 Apr 2021 05:00 Remen Indonesia  0.1
09 Apr 2021 15:30 Brassan Indonesia  0.1
09 Apr 2021 21:00 Oeboeah Indonesia  0.1
09 Apr 2021 21:00 Hansisi Indonesia  0.1
09 Apr 2021 21:00 Naioni Indonesia  0.1
09 Apr 2021 21:00 Tenau Indonesia  0.1
09 Apr 2021 21:00 Manoelairoti Indonesia  0.1
09 Apr 2021 21:00 Namosain Indonesia  0.1
09 Apr 2021 21:00 Kupang Indonesia  0.1
09 Apr 2021 21:00 Soelamoe Indonesia  0.1
09 Apr 2021 21:00 Maoelafa Indonesia  0.1
09 Apr 2021 21:00 Pitai Indonesia  0.1
09 Apr 2021 21:00 Manikin Indonesia  0.1
09 Apr 2021 21:00 Pariti Indonesia  0.1
09 Apr 2021 21:00 Naimoeti Indonesia  0.1
12 Apr 2021 03:30 Ketapang Indonesia  0.1
12 Apr 2021 03:30 Kelapang Indonesia  0.1
12 Apr 2021 03:30 Sokabana Indonesia  0.1
12 Apr 2021 05:15 Aermata Indonesia  0.1
12 Apr 2021 05:15 Klampis Indonesia  0.1
12 Apr 2021 05:15 Sapulu Indonesia  0.1
12 Apr 2021 03:30 Tlagabiru Indonesia  0.1
12 Apr 2021 03:30 Banjoeates Indonesia  0.1
12 Apr 2021 05:15 Padangan-wetan Indonesia  0.1
12 Apr 2021 05:15 Kalipang Indonesia  0.1
12 Apr 2021 05:15 Lemanbang Indonesia  0.1
12 Apr 2021 05:15 Tambakbaja Indonesia  0.1