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 1 thousand in Category 1 or higher
Maximum wind speed 104 km/h
Maximum storm surge 2.2 m (11 Apr 10:00 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
ECMWF Current 104 km/h 2.2 m 189 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 10 Apr 2021 00:00 UTC
CategoryCountryPopulation 
CAT. 1Australia1069 
Tropical StormAustralia57490 

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 00:00 155 1 thousand
- - - - Australia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 10 Apr 2021 00:00 UTC
LevelCountryPopulation 
100-250 mmIndonesia2985 
50-100 mmIndonesia, Australia778724
+
Indonesia642865 
Australia135859 

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 00:00 392 3 thousand
- - - - Indonesia, Australia




Impact estimation for the next 72h

StormSurge

2.2 m

The maximum Storm surge height is  2.2m in Useless Loop, Australia. This height is estimated for 11 Apr 2021 10:00 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 10 Apr 2021 00:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
11 Apr 2021 10:00 Useless Loop Australia  2.2
11 Apr 2021 11:30 Tamala Australia  2.0
11 Apr 2021 10:15 Dirk Hartog Australia  1.9
11 Apr 2021 12:45 Nanga Australia  1.7
11 Apr 2021 12:45 Carrarang Australia  1.6
11 Apr 2021 13:15 Hamelin Pool Australia  1.6
11 Apr 2021 13:15 Hamelin Australia  1.6
11 Apr 2021 14:15 Gladstone Australia  1.5
11 Apr 2021 10:15 Denham Australia  1.5
11 Apr 2021 14:30 Shark Bay Australia  1.2
11 Apr 2021 14:30 Monkey Mia Australia  1.2
11 Apr 2021 12:15 Kalbarri Australia  1.0
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 13:30 Gregory Australia  0.8
11 Apr 2021 13:30 Lynton Australia  0.8
11 Apr 2021 13:30 Horrocks Australia  0.8
11 Apr 2021 15:15 Denison Australia  0.7
11 Apr 2021 15:15 Port Denison Australia  0.7
11 Apr 2021 15:15 Dongara Australia  0.7
11 Apr 2021 15:15 Greenough Australia  0.7
11 Apr 2021 09:30 Carnarvon Australia  0.6
10 Apr 2021 07:15 Learmonth Australia  0.6
11 Apr 2021 15:30 Illawong Australia  0.5
11 Apr 2021 16:00 Coolimba Australia  0.4
11 Apr 2021 16:15 Leeman Australia  0.4
10 Apr 2021 05:30 Exmouth Australia  0.4
11 Apr 2021 16:15 Green Head Australia  0.3
11 Apr 2021 07:45 Quobba Australia  0.3
11 Apr 2021 07:45 Cape Cuvier Australia  0.3
10 Apr 2021 05:00 Onslow Australia  0.3
10 Apr 2021 06:15 Mardie Australia  0.3
10 Apr 2021 05:00 Glenroy Australia  0.3
11 Apr 2021 16:30 Jurien Australia  0.3
11 Apr 2021 16:30 Cervantes Australia  0.2
11 Apr 2021 07:00 Gnaraloo Australia  0.2
10 Apr 2021 08:30 Cardabia Australia  0.2
10 Apr 2021 08:30 East Lewis I Australia  0.2
10 Apr 2021 08:30 Dampier Australia  0.2
12 Apr 2021 14:30 Maringgai Indonesia  0.2
11 Apr 2021 05:00 Warroora Australia  0.2
11 Apr 2021 18:15 Lancelin Australia  0.2
10 Apr 2021 04:15 Ah Chong I Australia  0.2
11 Apr 2021 17:15 Seabird Australia  0.2
11 Apr 2021 17:15 Guilderton Australia  0.2
12 Apr 2021 22:15 Kendal Indonesia  0.2
12 Apr 2021 22:15 Mangkang-Kulan Indonesia  0.2
12 Apr 2021 22:15 Djomblang Indonesia  0.2
12 Apr 2021 22:15 Semarang Indonesia  0.2
12 Apr 2021 22:15 Karangroto Indonesia  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
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 18:30 Two Rocks Australia  0.2
12 Apr 2021 15:15 Kramat Indonesia  0.2
12 Apr 2021 22:15 Wedung Indonesia  0.2
12 Apr 2021 22:15 Kedungmalang Indonesia  0.2
11 Apr 2021 19:15 Yanchep Australia  0.2
11 Apr 2021 19:15 Quinns Rock Australia  0.2
12 Apr 2021 22:00 Sidja 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 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
12 Apr 2021 14:45 Merak Indonesia  0.2
11 Apr 2021 18:45 Gunyulgup Australia  0.2
11 Apr 2021 18:45 Yallingup Australia  0.2
11 Apr 2021 18:45 Dunsborough Australia  0.2
11 Apr 2021 18:45 Quindalup Australia  0.2
11 Apr 2021 18:45 Vasse Australia  0.2
12 Apr 2021 19:45 Broome Australia  0.2
11 Apr 2021 18:30 Broadwater Australia  0.2
11 Apr 2021 18:30 Busselton Australia  0.2
12 Apr 2021 22:00 Bugel Indonesia  0.2
12 Apr 2021 15:00 Cengkarengbelakang Indonesia  0.2
12 Apr 2021 15:30 Ketapang Indonesia  0.2
12 Apr 2021 21:45 Klampok Indonesia  0.2
12 Apr 2021 21:45 Tegal Indonesia  0.2
12 Apr 2021 21:45 Wanasari Indonesia  0.2
12 Apr 2021 15:30 Tipar Indonesia  0.2
12 Apr 2021 21:45 Jepara Indonesia  0.2
12 Apr 2021 21:45 Karanggondang Indonesia  0.2
11 Apr 2021 18:00 Mullalloo Beach Australia  0.2
11 Apr 2021 18:00 Peppermint Grove Australia  0.2
11 Apr 2021 18:00 Swanbourne Australia  0.2
11 Apr 2021 18:00 Claremont Australia  0.2
11 Apr 2021 18:00 Spearwood Australia  0.2
11 Apr 2021 18:00 Bicton Australia  0.2
11 Apr 2021 18:00 Wattleup Australia  0.2
11 Apr 2021 18:00 Gracetown Australia  0.2
12 Apr 2021 15:00 Balubuk Indonesia  0.2
11 Apr 2021 16:15 Wonnerup Australia  0.2
11 Apr 2021 16:15 Ludlow Australia  0.2
12 Apr 2021 19:30 Thangoo Australia  0.2
11 Apr 2021 21:00 Dalyellup Australia  0.2
11 Apr 2021 21:00 Bunbury Australia  0.2
11 Apr 2021 21:00 Picton Australia  0.2
12 Apr 2021 21:00 Pekalongan Indonesia  0.2
11 Apr 2021 18:15 Rockingham Australia  0.2
12 Apr 2021 21:45 Sigedang Indonesia  0.2
12 Apr 2021 22:00 Petaroekan Indonesia  0.2
11 Apr 2021 17:15 Eaton Australia  0.2
11 Apr 2021 17:15 Burragenup Australia  0.2
11 Apr 2021 17:15 Australind Australia  0.2
12 Apr 2021 03:45 Baliga Indonesia  0.2
12 Apr 2021 03:45 Laboean Indonesia  0.2
11 Apr 2021 17:30 Binningup Australia  0.2
11 Apr 2021 17:30 Myalup Australia  0.2
12 Apr 2021 05:00 Doombup Australia  0.2
12 Apr 2021 02:45 Sidoardjo Indonesia  0.2
12 Apr 2021 20:30 Taju Indonesia  0.2
12 Apr 2021 20:30 Bulumanis Indonesia  0.2
12 Apr 2021 20:30 Batangan Indonesia  0.2
12 Apr 2021 20:30 Rembang Indonesia  0.2
12 Apr 2021 15:15 Bakau Indonesia  0.2
12 Apr 2021 21:15 Pemalang Indonesia  0.1
12 Apr 2021 23:00 Losan Indonesia  0.1
12 Apr 2021 23:00 Bulakamba Indonesia  0.1
12 Apr 2021 02:15 Pasuruan Indonesia  0.1
10 Apr 2021 06:30 Ningaloo Australia  0.1
10 Apr 2021 20:00 Karangampel Indonesia  0.1
10 Apr 2021 20:00 Cilancang Indonesia  0.1
10 Apr 2021 20:00 Cirebon Indonesia  0.1
10 Apr 2021 10:00 Wickham Australia  0.1
10 Apr 2021 10:00 Point Samson Australia  0.1
10 Apr 2021 10:00 Cossack Australia  0.1
12 Apr 2021 05:15 Esperance Australia  0.1
12 Apr 2021 21:45 Karangsari Indonesia  0.1
10 Apr 2021 03:00 Bundera Bundera Australia  0.1
10 Apr 2021 02:45 Karratha Australia  0.1
10 Apr 2021 13:45 Bayeman Indonesia  0.1
11 Apr 2021 03:15 Pedes Indonesia  0.1
11 Apr 2021 03:15 Sungaibuntu Indonesia  0.1
11 Apr 2021 03:15 Pasirputih Indonesia  0.1
11 Apr 2021 03:15 Muaratjilamaja Indonesia  0.1
12 Apr 2021 06:30 Blimbing Indonesia  0.1
12 Apr 2021 06:30 Dadapan Indonesia  0.1
12 Apr 2021 06:30 Banyuwangi Indonesia  0.1
12 Apr 2021 06:30 Banjuwangi Indonesia  0.1
12 Apr 2021 06:30 Soega Indonesia  0.1
12 Apr 2021 06:30 Gilimanuk Indonesia  0.1
12 Apr 2021 06:30 Penginoeman Indonesia  0.1
12 Apr 2021 06:30 Belimbingsari Indonesia  0.1
12 Apr 2021 06:30 Tjandikesuma Indonesia  0.1
12 Apr 2021 02:45 Sumberkuning Indonesia  0.1
12 Apr 2021 13:30 Derby Australia  0.1
12 Apr 2021 15:30 Tlagabiru Indonesia  0.1
12 Apr 2021 15:30 Banjoeates Indonesia  0.1
12 Apr 2021 15:30 Ketapang Indonesia  0.1
12 Apr 2021 15:30 Kelapang Indonesia  0.1
12 Apr 2021 04:30 Sidaju Indonesia  0.1
12 Apr 2021 15:30 Ambunten-timu Indonesia  0.1
12 Apr 2021 15:45 Sokabana Indonesia  0.1
12 Apr 2021 14:15 Tambajangan Indonesia  0.1
12 Apr 2021 14:15 Kajuwaru Indonesia  0.1
12 Apr 2021 15:45 Belukares Indonesia  0.1
10 Apr 2021 08:45 Pahanuma Indonesia  0.1
10 Apr 2021 08:45 Belowa Indonesia  0.1
10 Apr 2021 07:15 Kencong Indonesia  0.1
10 Apr 2021 07:15 Lodjedjer Indonesia  0.1
10 Apr 2021 03:15 Kotodjawa Indonesia  0.1
10 Apr 2021 03:15 Bandaragung Indonesia  0.1
10 Apr 2021 03:15 Tjampang Indonesia  0.1
10 Apr 2021 03:15 Waiharoe Indonesia  0.1
10 Apr 2021 03:15 Guring Indonesia  0.1
12 Apr 2021 15:45 Sumenep Indonesia  0.1
12 Apr 2021 13:15 Probolinggo Indonesia  0.1
12 Apr 2021 13:15 Gending Indonesia  0.1
12 Apr 2021 13:15 Kraksaan Indonesia  0.1
12 Apr 2021 02:15 Sampang Indonesia  0.1
10 Apr 2021 04:45 Djagalaja Indonesia  0.1
10 Apr 2021 04:45 Bendungan Indonesia  0.1
12 Apr 2021 15:15 Anjer-Kidu Indonesia  0.1
12 Apr 2021 18:15 Podang Indonesia  0.1
12 Apr 2021 18:15 Brondong Indonesia  0.1
12 Apr 2021 20:15 Lasem Indonesia  0.1
12 Apr 2021 15:45 Batuputihkenek Indonesia  0.1
10 Apr 2021 07:00 Galur Indonesia  0.1
12 Apr 2021 21:45 Indramaju Indonesia  0.1
10 Apr 2021 07:30 Port Hedland Australia  0.1
10 Apr 2021 07:30 Wedgefield Australia  0.1
12 Apr 2021 16:00 Lombang Indonesia  0.1
12 Apr 2021 16:00 Banraas Indonesia  0.1
10 Apr 2021 03:45 Karangberak Indonesia  0.1
10 Apr 2021 03:45 Tampang Indonesia  0.1
10 Apr 2021 03:45 Sawangbalak Indonesia  0.1
12 Apr 2021 18:00 Semanding Indonesia  0.1
12 Apr 2021 13:00 Karagajar Indonesia  0.1
10 Apr 2021 09:15 Belimbing 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 12:30 Galis Indonesia  0.1
12 Apr 2021 16:15 Aermata Indonesia  0.1
12 Apr 2021 16:15 Klampis Indonesia  0.1
12 Apr 2021 16:15 Sapulu Indonesia  0.1
12 Apr 2021 09:15 Tandjungkarang Indonesia  0.1
12 Apr 2021 09:15 Tarahan Indonesia  0.1