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 108 km/h
Maximum storm surge 1.9 m (11 Apr 08:45 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 108 km/h 1.9 m 137 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 70 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 10 Apr 2021 12:00 UTC
CategoryCountryPopulation 
Tropical StormAustralia65,101 

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 83 - - - - - - -
GREEN 13 10 Apr 2021 00:00 104 - - - - - - -
GREEN 14 10 Apr 2021 12:00 133 -
- - - - - Australia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 10 Apr 2021 12:00 UTC
LevelCountryPopulation 
100-250 mmIndonesia110,404 
50-100 mmIndonesia, Australia3,089,350
+
Indonesia2,878,072 
Australia211,278 

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 12:00 193 - - - - - - -
Blue 13 10 Apr 2021 00:00 189 -
- - - - - Indonesia
Blue 14 10 Apr 2021 12:00 499 110 thousand
- - - - Indonesia, Australia




Impact estimation for the next 72h

StormSurge

1.9 m

The maximum Storm surge height is  1.9m in Useless Loop, Australia. This height is estimated for 11 Apr 2021 08:45 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 10 Apr 2021 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
11 Apr 2021 08:45 Useless Loop Australia  1.9
11 Apr 2021 11:00 Tamala Australia  1.8
11 Apr 2021 09:00 Dirk Hartog Australia  1.7
11 Apr 2021 14:30 Hamelin Pool Australia  1.6
11 Apr 2021 14:30 Hamelin Australia  1.6
11 Apr 2021 12:15 Nanga Australia  1.5
11 Apr 2021 12:30 Carrarang Australia  1.5
11 Apr 2021 13:45 Gladstone Australia  1.4
11 Apr 2021 09:30 Denham Australia  1.4
11 Apr 2021 13:45 Shark Bay Australia  1.2
11 Apr 2021 13:45 Monkey Mia Australia  1.2
11 Apr 2021 13:45 Geraldton Australia  1.0
11 Apr 2021 13:45 Drummond Cove Australia  1.0
11 Apr 2021 13:45 Popes Landing Australia  1.0
11 Apr 2021 13:45 Waggrakine Australia  1.0
11 Apr 2021 13:30 Horrocks Australia  1.0
11 Apr 2021 12:15 Gregory Australia  1.0
11 Apr 2021 12:15 Lynton Australia  1.0
11 Apr 2021 11:45 Kalbarri Australia  1.0
11 Apr 2021 13:45 Greenough Australia  0.9
11 Apr 2021 15:15 Denison Australia  0.8
11 Apr 2021 15:15 Port Denison Australia  0.8
11 Apr 2021 15:15 Dongara Australia  0.8
11 Apr 2021 08:45 Carnarvon Australia  0.6
11 Apr 2021 15:30 Illawong Australia  0.6
11 Apr 2021 15:30 Coolimba Australia  0.5
11 Apr 2021 15:30 Leeman Australia  0.4
11 Apr 2021 15:30 Green Head Australia  0.4
11 Apr 2021 07:45 Quobba Australia  0.4
10 Apr 2021 20:15 Learmonth Australia  0.3
11 Apr 2021 07:45 Cape Cuvier Australia  0.3
11 Apr 2021 15:45 Jurien Australia  0.3
11 Apr 2021 15:30 Cervantes Australia  0.3
11 Apr 2021 05:30 Gnaraloo Australia  0.2
10 Apr 2021 20:15 Exmouth Australia  0.2
11 Apr 2021 18:30 Vasse Australia  0.2
11 Apr 2021 18:30 Broadwater Australia  0.2
11 Apr 2021 18:30 Busselton Australia  0.2
11 Apr 2021 18:30 Wonnerup Australia  0.2
11 Apr 2021 18:30 Ludlow Australia  0.2
11 Apr 2021 18:30 Gunyulgup Australia  0.2
11 Apr 2021 18:30 Yallingup Australia  0.2
11 Apr 2021 18:30 Dunsborough Australia  0.2
11 Apr 2021 18:30 Quindalup Australia  0.2
13 Apr 2021 03:30 Maringgai Indonesia  0.2
11 Apr 2021 19:00 Lancelin Australia  0.2
13 Apr 2021 03:15 Kramat Indonesia  0.2
13 Apr 2021 03:15 Cengkarengbelakang Indonesia  0.2
13 Apr 2021 03:15 Tipar Indonesia  0.2
13 Apr 2021 03:30 Kandangan Indonesia  0.2
13 Apr 2021 03:30 Gresik Indonesia  0.2
13 Apr 2021 03:30 Pangkalan Indonesia  0.2
13 Apr 2021 03:30 Batoe Porong Indonesia  0.2
13 Apr 2021 03:30 Kebanjar Indonesia  0.2
12 Apr 2021 16:00 Domas Indonesia  0.2
12 Apr 2021 16:00 Tanara Indonesia  0.2
12 Apr 2021 16:00 Ketapang 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
11 Apr 2021 07:15 Warroora Australia  0.2
10 Apr 2021 12:00 Onslow Australia  0.2
11 Apr 2021 18:30 Seabird Australia  0.2
11 Apr 2021 18:30 Guilderton Australia  0.2
13 Apr 2021 03:30 Balubuk Indonesia  0.2
12 Apr 2021 20:15 Broome Australia  0.2
10 Apr 2021 12:00 Glenroy Australia  0.2
12 Apr 2021 00:00 Rockingham Australia  0.2
12 Apr 2021 00:00 Fremantle Australia  0.2
12 Apr 2021 00:00 North Fremantle Australia  0.2
12 Apr 2021 00:00 East Fremantle Australia  0.2
12 Apr 2021 00:00 Coogee Australia  0.2
12 Apr 2021 00:00 Spearwood Australia  0.2
12 Apr 2021 00:00 Wattleup Australia  0.2
13 Apr 2021 03:15 Merak Indonesia  0.2
11 Apr 2021 18:30 Dalyellup Australia  0.2
11 Apr 2021 18:30 Bunbury Australia  0.2
11 Apr 2021 18:30 Picton Australia  0.2
11 Apr 2021 18:45 Two Rocks Australia  0.2
11 Apr 2021 18:45 Yanchep Australia  0.2
11 Apr 2021 18:45 Quinns Rock Australia  0.2
10 Apr 2021 23:45 Cardabia Australia  0.2
11 Apr 2021 18:15 Binningup Australia  0.2
11 Apr 2021 18:15 Myalup Australia  0.2
11 Apr 2021 18:15 Eaton Australia  0.2
11 Apr 2021 18:15 Burragenup Australia  0.2
11 Apr 2021 18:15 Australind Australia  0.2
12 Apr 2021 04:45 Doombup Australia  0.2
13 Apr 2021 03:15 Baliga Indonesia  0.2
13 Apr 2021 03:15 Laboean Indonesia  0.2
12 Apr 2021 20:00 Thangoo Australia  0.2
11 Apr 2021 19:00 Mullalloo Beach Australia  0.2
12 Apr 2021 04:30 Esperance Australia  0.2
11 Apr 2021 18:45 North Beach Australia  0.2
11 Apr 2021 18:45 Scarborough Australia  0.2
11 Apr 2021 19:00 Mosman Park Australia  0.2
11 Apr 2021 19:00 Cottesloe Australia  0.2
11 Apr 2021 19:00 Peppermint Grove Australia  0.2
11 Apr 2021 19:00 Swanbourne Australia  0.2
11 Apr 2021 19:00 Claremont Australia  0.2
11 Apr 2021 19:00 Bicton Australia  0.2
12 Apr 2021 22:00 Pekalongan Indonesia  0.2
12 Apr 2021 22:00 Sidja Indonesia  0.2
13 Apr 2021 12:00 Derby Australia  0.2
13 Apr 2021 03:45 Pedes Indonesia  0.2
13 Apr 2021 03:15 Ketapang Indonesia  0.2
13 Apr 2021 02:00 Pasuruan Indonesia  0.2
13 Apr 2021 02:00 Bayeman Indonesia  0.2
11 Apr 2021 19:00 Gracetown Australia  0.2
13 Apr 2021 03:30 Sungaibuntu Indonesia  0.2
12 Apr 2021 22:30 Mangkang-Kulan Indonesia  0.2
12 Apr 2021 22:30 Djomblang Indonesia  0.2
12 Apr 2021 22:30 Semarang Indonesia  0.2
12 Apr 2021 22:30 Karangroto Indonesia  0.2
12 Apr 2021 14:30 Sidoardjo Indonesia  0.2
13 Apr 2021 03:00 Pasirputih Indonesia  0.2
13 Apr 2021 03:00 Muaratjilamaja Indonesia  0.2
13 Apr 2021 04:15 Blimbing Indonesia  0.2
13 Apr 2021 04:15 Dadapan Indonesia  0.2
13 Apr 2021 04:15 Banyuwangi Indonesia  0.2
13 Apr 2021 04:15 Banjuwangi Indonesia  0.2
13 Apr 2021 04:15 Soega Indonesia  0.2
13 Apr 2021 04:15 Gilimanuk Indonesia  0.2
13 Apr 2021 04:15 Penginoeman Indonesia  0.2
13 Apr 2021 04:15 Belimbingsari Indonesia  0.2
13 Apr 2021 04:15 Tjandikesuma Indonesia  0.2
12 Apr 2021 22:15 Wedung Indonesia  0.2
12 Apr 2021 22:15 Kedungmalang Indonesia  0.2
12 Apr 2021 21:15 Klampok Indonesia  0.2
12 Apr 2021 21:15 Tegal Indonesia  0.2
12 Apr 2021 21:15 Wanasari Indonesia  0.2
12 Apr 2021 22:00 Kendal Indonesia  0.2
13 Apr 2021 08:15 Cilancang Indonesia  0.2
13 Apr 2021 08:15 Cirebon Indonesia  0.2
13 Apr 2021 08:15 Losan Indonesia  0.2
12 Apr 2021 22:00 Petaroekan Indonesia  0.2
12 Apr 2021 22:00 Sigedang Indonesia  0.2
12 Apr 2021 14:30 Sumberkuning Indonesia  0.2
12 Apr 2021 22:00 Bulakamba Indonesia  0.2
13 Apr 2021 04:30 Bakau Indonesia  0.2
13 Apr 2021 08:15 Karangampel Indonesia  0.2
13 Apr 2021 07:00 Muntjar Indonesia  0.2
12 Apr 2021 22:30 Bugel Indonesia  0.2
13 Apr 2021 10:15 Eucla Motel Australia  0.2
12 Apr 2021 21:45 Pemalang Indonesia  0.2
12 Apr 2021 22:00 Jepara Indonesia  0.1
12 Apr 2021 22:00 Karanggondang Indonesia  0.1
12 Apr 2021 14:00 Sampang Indonesia  0.1
12 Apr 2021 14:30 Probolinggo Indonesia  0.1
12 Apr 2021 05:00 Kiluan Indonesia  0.1
12 Apr 2021 05:00 Kekatang Indonesia  0.1
12 Apr 2021 05:00 Menango Indonesia  0.1
12 Apr 2021 05:00 Telukbetung Indonesia  0.1
12 Apr 2021 13:45 Gending Indonesia  0.1
13 Apr 2021 01:30 Kraksaan Indonesia  0.1
12 Apr 2021 14:00 Karagajar Indonesia  0.1
13 Apr 2021 01:45 Galis Indonesia  0.1
12 Apr 2021 16:45 Sidaju Indonesia  0.1
13 Apr 2021 01:45 Prenduan Indonesia  0.1
13 Apr 2021 04:30 Brassan Indonesia  0.1
13 Apr 2021 07:00 Banjoebiroe Indonesia  0.1
13 Apr 2021 07:00 Cupel Indonesia  0.1
13 Apr 2021 07:00 Banjuwedang Indonesia  0.1
13 Apr 2021 07:00 Prancak Indonesia  0.1
13 Apr 2021 07:00 Negara Indonesia  0.1
12 Apr 2021 14:15 Besuki Indonesia  0.1
10 Apr 2021 21:45 Ningaloo Australia  0.1
12 Apr 2021 21:15 Indramaju Indonesia  0.1
12 Apr 2021 21:00 Karangsari Indonesia  0.1
12 Apr 2021 05:15 Tandjungkarang Indonesia  0.1
12 Apr 2021 05:15 Tarahan Indonesia  0.1
12 Apr 2021 07:15 East Lewis I Australia  0.1
12 Apr 2021 07:15 Dampier Australia  0.1
12 Apr 2021 14:15 Mandingan Indonesia  0.1
13 Apr 2021 02:00 Djate Indonesia  0.1
13 Apr 2021 02:00 Bluto Indonesia  0.1
13 Apr 2021 04:30 Anjer-Kidu Indonesia  0.1
12 Apr 2021 13:15 Saroka Indonesia  0.1
12 Apr 2021 13:15 Sumenep Indonesia  0.1
12 Apr 2021 13:15 Bundan Indonesia  0.1
12 Apr 2021 13:15 Gedugan Indonesia  0.1
11 Apr 2021 03:45 Mardie Australia  0.1
10 Apr 2021 12:30 Ah Chong I Australia  0.1
12 Apr 2021 20:00 Eyre Australia  0.1
12 Apr 2021 14:00 Situbondo Indonesia  0.1
12 Apr 2021 21:00 Taju Indonesia  0.1
12 Apr 2021 21:00 Bulumanis Indonesia  0.1
12 Apr 2021 21:00 Batangan Indonesia  0.1
12 Apr 2021 21:00 Rembang Indonesia  0.1
12 Apr 2021 14:30 Ketapang Indonesia  0.1
12 Apr 2021 14:30 Kelapang Indonesia  0.1
12 Apr 2021 14:30 Sokabana Indonesia  0.1
12 Apr 2021 16:45 Tlagabiru Indonesia  0.1
12 Apr 2021 16:45 Banjoeates Indonesia  0.1
13 Apr 2021 03:00 Sapulu Indonesia  0.1
12 Apr 2021 13:30 Djangdjangan Indonesia  0.1
12 Apr 2021 14:00 Tjikawung Indonesia  0.1
10 Apr 2021 15:15 Bundera Bundera Australia  0.1
12 Apr 2021 04:00 Tambak Indonesia  0.1
12 Apr 2021 04:00 Sangkapura Indonesia  0.1
12 Apr 2021 15:00 Aermata Indonesia  0.1
12 Apr 2021 15:00 Klampis Indonesia  0.1
12 Apr 2021 14:45 Plosokere Indonesia  0.1
12 Apr 2021 14:45 Djenu Indonesia  0.1
12 Apr 2021 14:45 Tuban Indonesia  0.1
12 Apr 2021 14:45 Semanding Indonesia  0.1
12 Apr 2021 14:45 Podang Indonesia  0.1
12 Apr 2021 14:45 Brondong Indonesia  0.1
13 Apr 2021 04:30 Kalianda Indonesia  0.1
12 Apr 2021 15:45 Ambunten-timu Indonesia  0.1
12 Apr 2021 15:45 Belukares Indonesia  0.1
12 Apr 2021 15:45 Batuputihkenek Indonesia  0.1
12 Apr 2021 15:45 Thundulda Australia  0.1
12 Apr 2021 17:30 Padangan-wetan Indonesia  0.1
12 Apr 2021 17:30 Kalipang Indonesia  0.1
12 Apr 2021 17:30 Lemanbang Indonesia  0.1
12 Apr 2021 17:30 Tambakbaja Indonesia  0.1
12 Apr 2021 13:45 Kesambirampak Indonesia  0.1
13 Apr 2021 06:00 Sumur Indonesia  0.1
13 Apr 2021 06:00 Aerdjeruk Indonesia  0.1
12 Apr 2021 13:45 Babakancibeber Indonesia  0.1
13 Apr 2021 11:15 Sikeli Indonesia  0.1
13 Apr 2021 11:15 Tedubara Indonesia  0.1
13 Apr 2021 11:15 Pising Indonesia  0.1
12 Apr 2021 15:00 Lombang Indonesia  0.1
12 Apr 2021 15:00 Banraas Indonesia  0.1
13 Apr 2021 07:15 Mendaja Indonesia  0.1