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 1 thousand in Category 1 or higher
Maximum wind speed 119 km/h
Maximum storm surge 2.5 m (11 Apr 12:30 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
HWRF Current 119 km/h 2.5 m 134 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 1 thousand in Category 1 strength or higher (see SSHS)



Wind exposed population - AoIs

Estimations based on the bulletin of 10 Apr 2021 00:00 UTC
CategoryCountryPopulation 
CAT. 3Australia01 
CAT. 2Australia505 
CAT. 1Australia566 
Tropical StormAustralia50,932 

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 00:00 187 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 
50-100 mmAustralia772 

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 00:00 314 -
- - - - - Australia




Impact estimation for the next 72h

StormSurge

2.5 m

The maximum Storm surge height is  2.5m in Hamelin Pool, Australia. This height is estimated for 11 Apr 2021 12:30 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.

Storm Surge Exposed locations

Calculation based on the bulletin of 10 Apr 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
11 Apr 2021 12:30 Hamelin Pool Australia  2.5
11 Apr 2021 12:30 Hamelin Australia  2.5
11 Apr 2021 15:00 Gladstone Australia  1.9
11 Apr 2021 09:30 Dirk Hartog Australia  1.6
11 Apr 2021 13:15 Tamala Australia  1.5
11 Apr 2021 16:30 Nanga Australia  1.5
11 Apr 2021 10:45 Denham Australia  1.5
11 Apr 2021 12:30 Useless Loop Australia  1.5
11 Apr 2021 16:30 Shark Bay Australia  1.4
11 Apr 2021 16:30 Monkey Mia Australia  1.4
11 Apr 2021 14:00 Carrarang Australia  1.4
11 Apr 2021 11:45 Carnarvon Australia  1.0
10 Apr 2021 09:30 Learmonth Australia  0.6
11 Apr 2021 15:00 Gregory Australia  0.5
11 Apr 2021 15:00 Lynton Australia  0.5
11 Apr 2021 15:00 Horrocks Australia  0.5
11 Apr 2021 10:45 Quobba Australia  0.5
11 Apr 2021 21:45 Denison Australia  0.5
11 Apr 2021 21:45 Port Denison Australia  0.5
11 Apr 2021 21:45 Dongara Australia  0.5
11 Apr 2021 15:30 Drummond Cove Australia  0.4
11 Apr 2021 15:30 Popes Landing Australia  0.4
11 Apr 2021 15:30 Geraldton Australia  0.4
11 Apr 2021 15:30 Waggrakine Australia  0.4
11 Apr 2021 16:15 Kalbarri Australia  0.4
11 Apr 2021 10:30 Cape Cuvier Australia  0.4
11 Apr 2021 18:45 Greenough Australia  0.4
12 Apr 2021 01:00 Illawong Australia  0.4
12 Apr 2021 01:00 Coolimba Australia  0.4
12 Apr 2021 01:00 Leeman Australia  0.4
10 Apr 2021 08:00 Exmouth Australia  0.4
12 Apr 2021 00:45 Green Head Australia  0.4
10 Apr 2021 05:45 Onslow Australia  0.3
10 Apr 2021 07:00 Mardie Australia  0.3
11 Apr 2021 10:30 Gnaraloo Australia  0.3
10 Apr 2021 06:00 Glenroy Australia  0.3
12 Apr 2021 01:00 Jurien Australia  0.3
10 Apr 2021 06:30 Ah Chong I Australia  0.2
11 Apr 2021 09:00 Warroora Australia  0.2
10 Apr 2021 05:45 East Lewis I Australia  0.2
10 Apr 2021 05:45 Dampier Australia  0.2
12 Apr 2021 00:15 Cervantes Australia  0.2
10 Apr 2021 00:00 Cardabia Australia  0.2
10 Apr 2021 05:45 Blimbing Indonesia  0.2
10 Apr 2021 05:45 Dadapan Indonesia  0.2
10 Apr 2021 05:45 Banyuwangi Indonesia  0.2
10 Apr 2021 05:45 Banjuwangi Indonesia  0.2
10 Apr 2021 05:45 Soega Indonesia  0.2
10 Apr 2021 05:45 Gilimanuk Indonesia  0.2
10 Apr 2021 05:45 Penginoeman Indonesia  0.2
10 Apr 2021 05:45 Belimbingsari Indonesia  0.2
10 Apr 2021 05:45 Tjandikesuma Indonesia  0.2
11 Apr 2021 19:15 Vasse Australia  0.2
11 Apr 2021 19:15 Broadwater Australia  0.2
11 Apr 2021 19:15 Busselton Australia  0.2
11 Apr 2021 19:15 Wonnerup Australia  0.2
11 Apr 2021 19:15 Ludlow Australia  0.2
11 Apr 2021 19:15 Dunsborough Australia  0.2
11 Apr 2021 19:15 Quindalup Australia  0.2
11 Apr 2021 19:30 Dalyellup Australia  0.2
11 Apr 2021 19:30 Bunbury Australia  0.2
11 Apr 2021 19:30 Binningup Australia  0.2
11 Apr 2021 19:30 Myalup Australia  0.2
11 Apr 2021 19:30 Picton Australia  0.2
11 Apr 2021 19:30 Eaton Australia  0.2
11 Apr 2021 19:30 Burragenup Australia  0.2
11 Apr 2021 19:30 Australind Australia  0.2
12 Apr 2021 19:45 Karangampel Indonesia  0.2
12 Apr 2021 19:45 Cilancang Indonesia  0.2
12 Apr 2021 19:45 Cirebon Indonesia  0.2
11 Apr 2021 18:45 Safety Bay Australia  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 Warnbro 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
11 Apr 2021 18:45 Gunyulgup Australia  0.2
11 Apr 2021 18:45 Yallingup Australia  0.2
11 Apr 2021 19:00 Falcon Australia  0.2
11 Apr 2021 19:00 Mandurah Australia  0.2
11 Apr 2021 19:00 Peelhurst Australia  0.2
11 Apr 2021 19:00 Singleton Australia  0.2
11 Apr 2021 19:00 Karnup Australia  0.2
12 Apr 2021 19:45 Losan Indonesia  0.2
11 Apr 2021 21:00 Lancelin Australia  0.2
11 Apr 2021 21:30 Seabird Australia  0.2
11 Apr 2021 21:30 Guilderton Australia  0.2
12 Apr 2021 00:45 Two Rocks Australia  0.2
12 Apr 2021 00:45 Yanchep Australia  0.2
12 Apr 2021 00:45 Quinns Rock Australia  0.2
12 Apr 2021 20:00 Bulakamba Indonesia  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 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 Bicton Australia  0.2
10 Apr 2021 04:00 Kencong Indonesia  0.2
10 Apr 2021 04:00 Lodjedjer Indonesia  0.2
12 Apr 2021 19:30 Klampok Indonesia  0.2
11 Apr 2021 20:15 North Beach Australia  0.2
11 Apr 2021 20:15 Scarborough Australia  0.2
12 Apr 2021 14:30 Maringgai Indonesia  0.2
12 Apr 2021 00:30 Mullalloo Beach Australia  0.2
10 Apr 2021 05:45 Aplame Indonesia  0.2
10 Apr 2021 05:45 Woereh Indonesia  0.2
10 Apr 2021 05:45 Lewohajong Indonesia  0.2
10 Apr 2021 05:45 Koekoewerang Indonesia  0.2
10 Apr 2021 05:45 Throng Indonesia  0.2
10 Apr 2021 05:45 Adoenara Indonesia  0.2
10 Apr 2021 05:45 Lamakera Indonesia  0.2
10 Apr 2021 05:45 Papelawe Indonesia  0.2
10 Apr 2021 05:45 Sagu Indonesia  0.2
10 Apr 2021 05:45 Wotanglolong Indonesia  0.2
10 Apr 2021 05:45 Lewokeling Indonesia  0.2
10 Apr 2021 05:45 Witihama Indonesia  0.2
10 Apr 2021 05:45 Boleng Indonesia  0.2
10 Apr 2021 05:45 Nereng Indonesia  0.2
11 Apr 2021 18:00 Gracetown Australia  0.2
12 Apr 2021 15:15 Cengkarengbelakang Indonesia  0.2
12 Apr 2021 15:15 Tipar Indonesia  0.2
12 Apr 2021 15:15 Domas Indonesia  0.2
12 Apr 2021 15:15 Tanara Indonesia  0.2
12 Apr 2021 15:15 Ketapang Indonesia  0.2
10 Apr 2021 04:15 Bundera Bundera Australia  0.2
12 Apr 2021 14:45 Kramat Indonesia  0.2
12 Apr 2021 15:15 Balubuk Indonesia  0.2
12 Apr 2021 20:00 Tegal Indonesia  0.2
12 Apr 2021 20:45 Kendal Indonesia  0.2
12 Apr 2021 20:45 Mangkang-Kulan Indonesia  0.2
12 Apr 2021 20:45 Djomblang Indonesia  0.2
12 Apr 2021 20:45 Semarang Indonesia  0.2
12 Apr 2021 20:45 Karangroto Indonesia  0.2
10 Apr 2021 16:15 Menango Indonesia  0.2
10 Apr 2021 16:15 Tandjungkarang Indonesia  0.2
10 Apr 2021 16:15 Telukbetung Indonesia  0.2
10 Apr 2021 16:15 Tarahan Indonesia  0.2
10 Apr 2021 07:45 Lewoleba Indonesia  0.2
10 Apr 2021 07:45 Lamanuna Indonesia  0.2
12 Apr 2021 21:00 Wanasari Indonesia  0.2
10 Apr 2021 04:30 Ningaloo Australia  0.2
12 Apr 2021 20:15 Pemalang Indonesia  0.2
10 Apr 2021 10:30 Oeboeah Indonesia  0.2
10 Apr 2021 10:30 Hansisi Indonesia  0.2
10 Apr 2021 10:30 Naioni Indonesia  0.2
10 Apr 2021 10:30 Tenau Indonesia  0.2
10 Apr 2021 10:30 Manoelairoti Indonesia  0.2
10 Apr 2021 10:30 Namosain Indonesia  0.2
10 Apr 2021 10:30 Kupang Indonesia  0.2
10 Apr 2021 10:30 Soelamoe Indonesia  0.2
10 Apr 2021 10:30 Maoelafa Indonesia  0.2
10 Apr 2021 10:30 Pitai Indonesia  0.2
10 Apr 2021 10:30 Manikin Indonesia  0.2
10 Apr 2021 10:30 Pariti Indonesia  0.2
10 Apr 2021 10:30 Naimoeti Indonesia  0.2
12 Apr 2021 21:30 Petaroekan Indonesia  0.2
12 Apr 2021 21:30 Sigedang Indonesia  0.2
12 Apr 2021 21:30 Pekalongan Indonesia  0.2
12 Apr 2021 21:00 Sidja Indonesia  0.2
12 Apr 2021 14:30 Merak Indonesia  0.1
12 Apr 2021 14:45 Ketapang Indonesia  0.1
12 Apr 2021 20:00 Wedung Indonesia  0.1
12 Apr 2021 20:00 Kedungmalang Indonesia  0.1
10 Apr 2021 17:45 Thangoo Australia  0.1
12 Apr 2021 20:30 Bugel Indonesia  0.1
10 Apr 2021 16:15 Kiluan Indonesia  0.1
10 Apr 2021 16:15 Kekatang Indonesia  0.1
12 Apr 2021 08:15 Ngalu Indonesia  0.1
12 Apr 2021 08:15 Tapil Indonesia  0.1
12 Apr 2021 20:15 Jepara Indonesia  0.1
10 Apr 2021 02:30 Huu Indonesia  0.1
10 Apr 2021 02:30 Madawa Indonesia  0.1
10 Apr 2021 02:30 Polo Indonesia  0.1
12 Apr 2021 20:45 Karanggondang Indonesia  0.1
10 Apr 2021 10:45 Derby Australia  0.1
10 Apr 2021 07:00 Broome Australia  0.1
11 Apr 2021 12:30 Kandangan Indonesia  0.1
11 Apr 2021 12:30 Gresik Indonesia  0.1
11 Apr 2021 12:30 Pangkalan Indonesia  0.1
11 Apr 2021 12:30 Batoe Porong Indonesia  0.1
11 Apr 2021 12:30 Kebanjar Indonesia  0.1
10 Apr 2021 02:30 Wickham Australia  0.1
10 Apr 2021 02:30 Point Samson Australia  0.1
10 Apr 2021 02:30 Cossack Australia  0.1
12 Apr 2021 15:15 Pedes Indonesia  0.1
12 Apr 2021 15:15 Sungaibuntu Indonesia  0.1
10 Apr 2021 01:30 Lamararap Indonesia  0.1
12 Apr 2021 20:15 Indramaju Indonesia  0.1
10 Apr 2021 21:15 Guring Indonesia  0.1
10 Apr 2021 21:15 Kota Agung Indonesia  0.1
10 Apr 2021 04:30 Karratha Australia  0.1
12 Apr 2021 22:45 Muntjar Indonesia  0.1
12 Apr 2021 14:45 Bakau Indonesia  0.1
10 Apr 2021 02:30 Sindangsari Indonesia  0.1
10 Apr 2021 02:30 Cijulang Indonesia  0.1
10 Apr 2021 02:30 Cikalong Indonesia  0.1
10 Apr 2021 02:30 Pangadaran Indonesia  0.1
12 Apr 2021 14:00 Baliga Indonesia  0.1
12 Apr 2021 14:00 Laboean Indonesia  0.1
10 Apr 2021 02:45 Tjikawung Indonesia  0.1
10 Apr 2021 02:45 Aerdjeruk Indonesia  0.1
12 Apr 2021 15:30 Sidaju Indonesia  0.1
10 Apr 2021 16:45 Pardoo Australia  0.1
10 Apr 2021 12:30 Laboean Mapin Indonesia  0.1
10 Apr 2021 12:30 Alas Indonesia  0.1
10 Apr 2021 12:30 Pernang Indonesia  0.1
12 Apr 2021 20:00 Karangsari Indonesia  0.1
10 Apr 2021 15:30 Chilachap Indonesia  0.1
10 Apr 2021 15:30 Adipala Indonesia  0.1
10 Apr 2021 03:30 Tampang Indonesia  0.1
10 Apr 2021 03:30 Sawangbalak Indonesia  0.1
12 Apr 2021 22:00 Cangkring Indonesia  0.1
12 Apr 2021 23:15 Pasirputih Indonesia  0.1
12 Apr 2021 23:15 Muaratjilamaja Indonesia  0.1
10 Apr 2021 06:00 Maoe Ndai Indonesia  0.1
10 Apr 2021 06:00 Manoeran Indonesia  0.1
10 Apr 2021 06:00 Pigadjawa Indonesia  0.1
10 Apr 2021 06:00 Nangaboa Indonesia  0.1
10 Apr 2021 06:00 Waroe Kasoe Indonesia  0.1
10 Apr 2021 06:00 Wassa Indonesia  0.1
12 Apr 2021 20:15 Taju Indonesia  0.1
10 Apr 2021 04:30 Condon Australia  0.1
10 Apr 2021 23:15 Mundjungan Indonesia  0.1
10 Apr 2021 23:15 Tasikmadoe Indonesia  0.1
10 Apr 2021 23:15 Popoh Indonesia  0.1
10 Apr 2021 10:30 Karangberak Indonesia  0.1
10 Apr 2021 10:30 Bandjaragung Indonesia  0.1
12 Apr 2021 13:00 Sidoardjo Indonesia  0.1
12 Apr 2021 20:15 Brassan Indonesia  0.1
10 Apr 2021 05:30 Kaliputjang Indonesia  0.1
12 Apr 2021 17:15 Banjoebiroe Indonesia  0.1
12 Apr 2021 17:15 Cupel Indonesia  0.1
12 Apr 2021 17:15 Banjuwedang Indonesia  0.1
12 Apr 2021 17:15 Prancak Indonesia  0.1
12 Apr 2021 17:15 Negara Indonesia  0.1
12 Apr 2021 16:00 Ketapang Indonesia  0.1
12 Apr 2021 16:00 Kelapang Indonesia  0.1
12 Apr 2021 16:00 Sokabana Indonesia  0.1
12 Apr 2021 19:15 Bulumanis Indonesia  0.1
10 Apr 2021 05:30 Kuta Indonesia  0.1
10 Apr 2021 05:30 Djimbaran Indonesia  0.1
10 Apr 2021 05:30 Boealoe Indonesia  0.1
10 Apr 2021 05:30 Benua Indonesia  0.1
10 Apr 2021 05:30 Denpasar Indonesia  0.1
10 Apr 2021 05:30 Sukawati Indonesia  0.1
10 Apr 2021 05:30 Labih Indonesia  0.1
10 Apr 2021 05:30 Bandjarangkan Indonesia  0.1
10 Apr 2021 05:30 Lungkung Indonesia  0.1
10 Apr 2021 05:30 Lembongan Indonesia  0.1
10 Apr 2021 05:30 Tojapakeh Indonesia  0.1
12 Apr 2021 14:45 Anjer-Kidu Indonesia  0.1
10 Apr 2021 02:45 Ajah Indonesia  0.1
10 Apr 2021 02:45 Petanahan Indonesia  0.1
10 Apr 2021 00:00 Sumur Indonesia  0.1
12 Apr 2021 23:00 Patrol Indonesia  0.1
12 Apr 2021 23:00 Kandanghaur Indonesia  0.1
12 Apr 2021 13:15 Sumberkuning Indonesia  0.1