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 Few people in Category 1 or higher
Maximum wind speed 140 km/h
Maximum storm surge 2.1 m (11 Apr 09:45 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
HWRF Current 140 km/h 2.1 m 160 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 Few people in Category 1 strength or higher (see SSHS)



Wind exposed population - AoIs

Estimations based on the bulletin of 10 Apr 2021 18:00 UTC
CategoryCountryPopulation 
CAT. 2Australia01 
CAT. 1Australia242 
Tropical StormAustralia36,784 

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 00:00 104 - - - - - - -
GREEN 12 07 Apr 2021 06:00 119 - - - - - - -
GREEN 13 07 Apr 2021 12:00 97 - - - - - - -
GREEN 14 07 Apr 2021 18:00 86 - - - - - - -
GREEN 15 08 Apr 2021 00:00 115 - - - - - - -
GREEN 16 08 Apr 2021 06:00 108 - - - - - - -
GREEN 17 08 Apr 2021 12:00 119 - - - - - - -
GREEN 18 08 Apr 2021 18:00 97 - - - - - - -
GREEN 19 09 Apr 2021 00:00 83 - - - - - - -
GREEN 20 09 Apr 2021 06:00 90 - - - - - - -
GREEN 21 09 Apr 2021 12:00 101 - - - - - - -
GREEN 22 09 Apr 2021 18:00 119 - - - - - - -
GREEN 23 10 Apr 2021 00:00 119 - - - - - - -
GREEN 24 10 Apr 2021 06:00 112 - - - - - - -
GREEN 25 10 Apr 2021 12:00 122 - - - - - - -
GREEN 26 10 Apr 2021 18:00 176 Few people
- - - Australia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 10 Apr 2021 18:00 UTC
LevelCountryPopulation 
50-100 mmAustralia1,651 

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 00:00 284 - - - - - - -
Blue 12 07 Apr 2021 06:00 424 - - - - - - -
Blue 13 07 Apr 2021 12:00 553 - - - - - - -
Blue 14 07 Apr 2021 18:00 359 - - - - - - -
Blue 15 08 Apr 2021 00:00 335 - - - - - - -
Blue 16 08 Apr 2021 06:00 216 - - - - - - -
Blue 17 08 Apr 2021 12:00 185 - - - - - - -
Blue 18 08 Apr 2021 18:00 131 - - - - - - -
Blue 19 09 Apr 2021 00:00 120 - - - - - - -
Blue 20 09 Apr 2021 06:00 93 - - - - - - -
Blue 21 09 Apr 2021 12:00 103 - - - - - - -
Blue 22 09 Apr 2021 18:00 134 - - - - - - -
Blue 23 10 Apr 2021 00:00 134 - - - - - - -
Blue 24 10 Apr 2021 06:00 126 - - - - - - -
Blue 25 10 Apr 2021 12:00 128 - - - - - - -
Blue 26 10 Apr 2021 18:00 162 -
- - - - - Australia




Impact estimation for the next 72h

StormSurge

2.1 m

The maximum Storm surge height is  2.1m in Useless Loop, Australia. This height is estimated for 11 Apr 2021 09:45 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 18:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
11 Apr 2021 09:45 Useless Loop Australia  2.1
11 Apr 2021 10:00 Dirk Hartog Australia  1.8
11 Apr 2021 09:30 Tamala Australia  1.6
11 Apr 2021 14:15 Hamelin Pool Australia  1.5
11 Apr 2021 14:15 Hamelin Australia  1.5
11 Apr 2021 12:30 Nanga Australia  1.5
11 Apr 2021 12:45 Carrarang Australia  1.4
11 Apr 2021 15:00 Gladstone Australia  1.4
11 Apr 2021 10:30 Denham Australia  1.3
11 Apr 2021 14:00 Shark Bay Australia  1.1
11 Apr 2021 14:00 Monkey Mia Australia  1.1
11 Apr 2021 13:00 Kalbarri Australia  0.6
11 Apr 2021 09:45 Carnarvon Australia  0.5
11 Apr 2021 15:00 Geraldton Australia  0.5
11 Apr 2021 15:00 Drummond Cove Australia  0.5
11 Apr 2021 15:00 Popes Landing Australia  0.5
11 Apr 2021 15:00 Waggrakine Australia  0.5
11 Apr 2021 19:00 Denison Australia  0.5
11 Apr 2021 19:00 Port Denison Australia  0.5
11 Apr 2021 19:00 Dongara Australia  0.5
11 Apr 2021 14:45 Horrocks Australia  0.5
11 Apr 2021 14:30 Gregory Australia  0.5
11 Apr 2021 14:30 Lynton Australia  0.5
11 Apr 2021 18:15 Greenough Australia  0.4
11 Apr 2021 19:30 Illawong Australia  0.4
11 Apr 2021 19:30 Coolimba Australia  0.4
11 Apr 2021 08:45 Quobba Australia  0.4
11 Apr 2021 17:15 Leeman Australia  0.3
11 Apr 2021 08:45 Cape Cuvier Australia  0.3
11 Apr 2021 19:45 Green Head Australia  0.3
10 Apr 2021 20:30 Learmonth Australia  0.3
11 Apr 2021 19:45 Jurien Australia  0.3
11 Apr 2021 19:00 Vasse Australia  0.3
11 Apr 2021 19:00 Broadwater Australia  0.3
11 Apr 2021 19:00 Busselton Australia  0.3
11 Apr 2021 19:00 Wonnerup Australia  0.3
11 Apr 2021 19:00 Ludlow Australia  0.3
11 Apr 2021 06:30 Gnaraloo Australia  0.3
11 Apr 2021 19:30 Dalyellup Australia  0.3
11 Apr 2021 19:30 Bunbury Australia  0.3
11 Apr 2021 19:30 Binningup Australia  0.3
11 Apr 2021 19:30 Myalup Australia  0.3
11 Apr 2021 19:30 Picton Australia  0.3
11 Apr 2021 19:30 Eaton Australia  0.3
11 Apr 2021 19:30 Burragenup Australia  0.3
11 Apr 2021 19:30 Australind Australia  0.3
10 Apr 2021 18:45 Onslow Australia  0.3
11 Apr 2021 03:30 Warroora Australia  0.3
11 Apr 2021 19:00 Dunsborough Australia  0.3
11 Apr 2021 19:00 Quindalup Australia  0.3
11 Apr 2021 18:15 Cervantes Australia  0.2
11 Apr 2021 05:15 Cardabia Australia  0.2
11 Apr 2021 18:30 Falcon Australia  0.2
11 Apr 2021 20:00 Gunyulgup Australia  0.2
11 Apr 2021 20:00 Yallingup Australia  0.2
10 Apr 2021 18:15 Glenroy Australia  0.2
12 Apr 2021 19:45 Cilancang Indonesia  0.2
12 Apr 2021 19:45 Cirebon Indonesia  0.2
12 Apr 2021 19:45 Karangampel Indonesia  0.2
11 Apr 2021 19:00 Lancelin Australia  0.2
12 Apr 2021 19:45 Losan Indonesia  0.2
11 Apr 2021 19:15 Mandurah Australia  0.2
11 Apr 2021 19:15 Singleton Australia  0.2
11 Apr 2021 18:45 Safety Bay Australia  0.2
11 Apr 2021 18:45 Warnbro Australia  0.2
11 Apr 2021 18:45 Peelhurst Australia  0.2
11 Apr 2021 18:45 Karnup Australia  0.2
11 Apr 2021 19:30 Gracetown Australia  0.2
11 Apr 2021 18:15 Seabird Australia  0.2
11 Apr 2021 18:15 Guilderton Australia  0.2
10 Apr 2021 19:00 Exmouth Australia  0.2
11 Apr 2021 19:30 Two Rocks Australia  0.2
12 Apr 2021 19:45 Bulakamba Indonesia  0.2
11 Apr 2021 18:45 Yanchep Australia  0.2
11 Apr 2021 18:45 Quinns Rock Australia  0.2
12 Apr 2021 14:30 Maringgai Indonesia  0.2
11 Apr 2021 18:45 Rockingham Australia  0.2
11 Apr 2021 18:45 Fremantle Australia  0.2
11 Apr 2021 18:45 North Fremantle Australia  0.2
11 Apr 2021 18:45 East Fremantle Australia  0.2
11 Apr 2021 18:45 Coogee Australia  0.2
11 Apr 2021 18:45 Spearwood Australia  0.2
11 Apr 2021 18:45 Wattleup Australia  0.2
12 Apr 2021 19:30 Klampok Indonesia  0.2
11 Apr 2021 18:30 Mullalloo Beach Australia  0.2
12 Apr 2021 15:00 Cengkarengbelakang Indonesia  0.2
12 Apr 2021 15:00 Tipar Indonesia  0.2
11 Apr 2021 19:45 North Beach Australia  0.2
11 Apr 2021 19:45 Scarborough Australia  0.2
11 Apr 2021 19:45 Mosman Park Australia  0.2
11 Apr 2021 19:45 Cottesloe Australia  0.2
11 Apr 2021 19:45 Peppermint Grove Australia  0.2
11 Apr 2021 19:45 Swanbourne Australia  0.2
11 Apr 2021 19:45 Claremont Australia  0.2
11 Apr 2021 19:45 Bicton Australia  0.2
12 Apr 2021 15:15 Balubuk Indonesia  0.2
12 Apr 2021 09:15 Blimbing Indonesia  0.2
12 Apr 2021 09:15 Dadapan Indonesia  0.2
12 Apr 2021 09:15 Banyuwangi Indonesia  0.2
12 Apr 2021 09:15 Banjuwangi Indonesia  0.2
12 Apr 2021 09:15 Soega Indonesia  0.2
12 Apr 2021 09:15 Gilimanuk Indonesia  0.2
12 Apr 2021 09:15 Penginoeman Indonesia  0.2
12 Apr 2021 09:15 Belimbingsari Indonesia  0.2
12 Apr 2021 09:15 Tjandikesuma Indonesia  0.2
12 Apr 2021 15:45 Kramat Indonesia  0.2
12 Apr 2021 14:30 Ketapang Indonesia  0.2
12 Apr 2021 14:45 Tanara Indonesia  0.2
12 Apr 2021 15:00 Domas Indonesia  0.2
12 Apr 2021 15:00 Pedes Indonesia  0.2
12 Apr 2021 15:00 Sungaibuntu Indonesia  0.2
10 Apr 2021 23:45 Ningaloo Australia  0.2
12 Apr 2021 22:00 Broome Australia  0.2
12 Apr 2021 14:30 Merak Indonesia  0.2
12 Apr 2021 19:15 Tegal Indonesia  0.2
12 Apr 2021 14:45 Ketapang Indonesia  0.2
12 Apr 2021 08:15 Ngalu Indonesia  0.2
12 Apr 2021 08:15 Tapil Indonesia  0.2
10 Apr 2021 20:45 Menango Indonesia  0.2
10 Apr 2021 20:45 Tandjungkarang Indonesia  0.2
10 Apr 2021 20:45 Telukbetung Indonesia  0.2
10 Apr 2021 20:45 Tarahan Indonesia  0.2
11 Apr 2021 06:30 Kencong Indonesia  0.1
11 Apr 2021 06:30 Lodjedjer Indonesia  0.1
10 Apr 2021 21:00 Kiluan Indonesia  0.1
10 Apr 2021 21:00 Kekatang Indonesia  0.1
11 Apr 2021 01:00 Mundjungan Indonesia  0.1
11 Apr 2021 01:00 Tasikmadoe Indonesia  0.1
11 Apr 2021 01:00 Popoh Indonesia  0.1
13 Apr 2021 14:30 Kandangan Indonesia  0.1
13 Apr 2021 14:30 Gresik Indonesia  0.1
13 Apr 2021 14:30 Pangkalan Indonesia  0.1
13 Apr 2021 14:30 Batoe Porong Indonesia  0.1
13 Apr 2021 14:30 Kebanjar Indonesia  0.1
12 Apr 2021 14:45 Bakau Indonesia  0.1
12 Apr 2021 22:15 Thangoo Australia  0.1
13 Apr 2021 15:45 Sidaju Indonesia  0.1
13 Apr 2021 07:15 Muntjar Indonesia  0.1
12 Apr 2021 20:15 Wanasari Indonesia  0.1
12 Apr 2021 20:15 Pemalang Indonesia  0.1
12 Apr 2021 14:15 Pasirputih Indonesia  0.1
12 Apr 2021 14:15 Muaratjilamaja Indonesia  0.1
12 Apr 2021 20:15 Petaroekan Indonesia  0.1
12 Apr 2021 20:45 Kendal Indonesia  0.1
12 Apr 2021 20:45 Mangkang-Kulan Indonesia  0.1
12 Apr 2021 20:15 Karangroto Indonesia  0.1
12 Apr 2021 20:15 Wedung Indonesia  0.1
12 Apr 2021 20:15 Kedungmalang Indonesia  0.1
12 Apr 2021 20:15 Sigedang Indonesia  0.1
12 Apr 2021 19:45 Djomblang Indonesia  0.1
12 Apr 2021 19:45 Semarang Indonesia  0.1
12 Apr 2021 20:00 Pekalongan Indonesia  0.1
11 Apr 2021 21:30 Chilachap Indonesia  0.1
11 Apr 2021 21:30 Adipala Indonesia  0.1
12 Apr 2021 20:30 Bugel Indonesia  0.1
12 Apr 2021 20:15 Jepara Indonesia  0.1
10 Apr 2021 18:45 Oeboeah Indonesia  0.1
10 Apr 2021 18:45 Hansisi Indonesia  0.1
10 Apr 2021 18:45 Naioni Indonesia  0.1
10 Apr 2021 18:45 Tenau Indonesia  0.1
10 Apr 2021 18:45 Manoelairoti Indonesia  0.1
10 Apr 2021 18:45 Namosain Indonesia  0.1
10 Apr 2021 18:45 Kupang Indonesia  0.1
10 Apr 2021 18:45 Soelamoe Indonesia  0.1
10 Apr 2021 18:45 Maoelafa Indonesia  0.1
10 Apr 2021 18:45 Pitai Indonesia  0.1
10 Apr 2021 18:45 Manikin Indonesia  0.1
10 Apr 2021 18:45 Pariti Indonesia  0.1
10 Apr 2021 18:45 Naimoeti Indonesia  0.1
12 Apr 2021 20:15 Sidja Indonesia  0.1
12 Apr 2021 20:45 Karanggondang Indonesia  0.1
13 Apr 2021 14:15 Baliga Indonesia  0.1
13 Apr 2021 14:15 Laboean Indonesia  0.1
13 Apr 2021 16:15 Eucla Motel Australia  0.1
12 Apr 2021 17:00 Tjikawung Indonesia  0.1
12 Apr 2021 17:00 Aerdjeruk Indonesia  0.1
13 Apr 2021 14:15 Tlagabiru Indonesia  0.1
13 Apr 2021 14:15 Banjoeates Indonesia  0.1
13 Apr 2021 14:15 Ketapang Indonesia  0.1
13 Apr 2021 14:15 Kelapang Indonesia  0.1
11 Apr 2021 22:45 Guring Indonesia  0.1
11 Apr 2021 22:45 Kota Agung Indonesia  0.1
10 Apr 2021 23:45 Mardie Australia  0.1
12 Apr 2021 23:00 Brassan Indonesia  0.1
10 Apr 2021 18:00 Bundera Bundera Australia  0.1
10 Apr 2021 21:00 Ah Chong I Australia  0.1
12 Apr 2021 12:00 Derby Australia  0.1
13 Apr 2021 14:30 Aermata Indonesia  0.1
13 Apr 2021 14:30 Klampis Indonesia  0.1
13 Apr 2021 02:00 Laboean Mapin Indonesia  0.1
13 Apr 2021 02:00 Alas Indonesia  0.1
13 Apr 2021 02:00 Pernang Indonesia  0.1
12 Apr 2021 20:15 Indramaju Indonesia  0.1
13 Apr 2021 14:30 Batuputihkenek Indonesia  0.1
13 Apr 2021 14:30 Lombang Indonesia  0.1
13 Apr 2021 14:30 Banraas Indonesia  0.1
13 Apr 2021 15:00 Sokabana Indonesia  0.1
12 Apr 2021 19:15 Karangsari Indonesia  0.1
13 Apr 2021 15:15 Sapulu Indonesia  0.1
11 Apr 2021 16:45 Port Hedland Australia  0.1
13 Apr 2021 18:00 Banjoebiroe Indonesia  0.1
13 Apr 2021 18:00 Cupel Indonesia  0.1
13 Apr 2021 18:00 Banjuwedang Indonesia  0.1
13 Apr 2021 18:00 Prancak Indonesia  0.1
13 Apr 2021 18:00 Negara Indonesia  0.1
13 Apr 2021 14:45 Tambak Indonesia  0.1
13 Apr 2021 14:45 Sangkapura Indonesia  0.1
12 Apr 2021 20:15 Binangoen Indonesia  0.1
13 Apr 2021 12:45 Sidoardjo Indonesia  0.1
10 Apr 2021 18:00 Wedgefield Australia  0.1
12 Apr 2021 19:45 Taju Indonesia  0.1
12 Apr 2021 19:45 Bulumanis Indonesia  0.1
12 Apr 2021 19:45 Batangan Indonesia  0.1
12 Apr 2021 19:45 Rembang Indonesia  0.1
13 Apr 2021 14:15 Sumberkuning Indonesia  0.1
13 Apr 2021 03:00 Pasuruan Indonesia  0.1
13 Apr 2021 03:00 Bayeman Indonesia  0.1
13 Apr 2021 14:30 Ambunten-timu Indonesia  0.1
13 Apr 2021 14:30 Belukares Indonesia  0.1
13 Apr 2021 14:30 Sumenep Indonesia  0.1
12 Apr 2021 15:30 Patrol Indonesia  0.1
13 Apr 2021 14:30 Sampang Indonesia  0.1
11 Apr 2021 02:15 Pangadaran Indonesia  0.1
11 Apr 2021 02:15 Kaliputjang Indonesia  0.1
12 Apr 2021 19:30 Eyre Australia  0.1
12 Apr 2021 14:15 Kandanghaur Indonesia  0.1
10 Apr 2021 19:45 Ajah Indonesia  0.1
13 Apr 2021 14:30 Galis Indonesia  0.1
13 Apr 2021 14:30 Prenduan Indonesia  0.1
10 Apr 2021 18:00 Pardoo Australia  0.1
12 Apr 2021 14:45 Anjer-Kidu Indonesia  0.1
13 Apr 2021 03:00 Probolinggo Indonesia  0.1
13 Apr 2021 03:00 Gending Indonesia  0.1
13 Apr 2021 03:00 Kraksaan Indonesia  0.1
12 Apr 2021 10:15 Lautem Timor-Leste  0.1
13 Apr 2021 02:30 Karagajar Indonesia  0.1
12 Apr 2021 23:45 Kabue Indonesia  0.1
12 Apr 2021 23:45 Belowa Indonesia  0.1
12 Apr 2021 23:45 Taoabi Indonesia  0.1
12 Apr 2021 23:45 Poelaudoea Indonesia  0.1
13 Apr 2021 14:30 Djate Indonesia  0.1
13 Apr 2021 14:30 Bluto Indonesia  0.1
13 Apr 2021 14:30 Saroka Indonesia  0.1
13 Apr 2021 14:30 Bundan Indonesia  0.1
11 Apr 2021 04:00 Pahanuma Indonesia  0.1
13 Apr 2021 14:00 Podang Indonesia  0.1
13 Apr 2021 14:00 Brondong Indonesia  0.1
13 Apr 2021 17:15 Kolitjaah Indonesia  0.1
13 Apr 2021 17:15 Tjiteureup Indonesia  0.1
13 Apr 2021 17:15 Labuhan Indonesia  0.1
13 Apr 2021 17:15 Kaduperasi Indonesia  0.1
13 Apr 2021 14:15 Semanding Indonesia  0.1
13 Apr 2021 13:00 Djangdjangan Indonesia  0.1
13 Apr 2021 13:00 Puteran Indonesia  0.1
13 Apr 2021 13:00 Sokaramme Indonesia  0.1
10 Apr 2021 21:45 East Lewis I Australia  0.1
10 Apr 2021 21:45 Dampier Australia  0.1