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 112 km/h
Maximum storm surge 2.2 m (11 Apr 13:00 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
HWRF Current 112 km/h 2.2 m 126 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 20 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 06:00 UTC
CategoryCountryPopulation 
CAT. 2Australia01 
CAT. 1Australia165 
Tropical StormAustralia19,266 

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 06:00 166 Few people
- - - Australia




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 10 Apr 2021 06:00 UTC
LevelCountryPopulation 
100-250 mmAustralia01 
50-100 mmAustralia125 

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 06:00 182 Few people
- - - - Australia




Impact estimation for the next 72h

StormSurge

2.2 m

The maximum Storm surge height is  2.2m in Tamala, Australia. This height is estimated for 11 Apr 2021 13:00 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.

Storm Surge Exposed locations

Calculation based on the bulletin of 10 Apr 2021 06:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
11 Apr 2021 13:00 Tamala Australia  2.2
11 Apr 2021 12:30 Hamelin Pool Australia  1.9
11 Apr 2021 12:30 Hamelin Australia  1.9
11 Apr 2021 13:45 Nanga Australia  1.7
11 Apr 2021 13:45 Carrarang Australia  1.6
11 Apr 2021 10:30 Useless Loop Australia  1.6
11 Apr 2021 09:30 Dirk Hartog Australia  1.6
11 Apr 2021 15:00 Gladstone Australia  1.6
11 Apr 2021 16:15 Shark Bay Australia  1.3
11 Apr 2021 16:15 Monkey Mia Australia  1.3
11 Apr 2021 10:45 Denham Australia  1.3
11 Apr 2021 11:45 Carnarvon Australia  0.7
10 Apr 2021 07:45 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 14:00 Kalbarri Australia  0.5
11 Apr 2021 15:30 Drummond Cove Australia  0.5
11 Apr 2021 15:30 Popes Landing Australia  0.5
11 Apr 2021 15:30 Geraldton Australia  0.4
11 Apr 2021 15:30 Waggrakine Australia  0.4
11 Apr 2021 19:45 Denison Australia  0.4
11 Apr 2021 19:45 Port Denison Australia  0.4
11 Apr 2021 19:45 Dongara Australia  0.4
11 Apr 2021 15:45 Greenough Australia  0.4
11 Apr 2021 20:00 Illawong Australia  0.4
11 Apr 2021 20:00 Coolimba Australia  0.4
10 Apr 2021 06:30 Exmouth Australia  0.4
11 Apr 2021 11:00 Quobba Australia  0.3
10 Apr 2021 06:00 Onslow Australia  0.3
11 Apr 2021 19:45 Leeman Australia  0.3
11 Apr 2021 11:00 Cape Cuvier Australia  0.3
10 Apr 2021 07:00 Mardie Australia  0.3
11 Apr 2021 20:15 Green Head Australia  0.3
10 Apr 2021 06:00 Glenroy Australia  0.3
11 Apr 2021 20:30 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 07:15 Warroora 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
10 Apr 2021 06:30 Ah Chong I Australia  0.2
11 Apr 2021 20:00 Gunyulgup Australia  0.2
11 Apr 2021 20:00 Yallingup Australia  0.2
10 Apr 2021 07:30 Gnaraloo Australia  0.2
12 Apr 2021 00:15 Lancelin Australia  0.2
12 Apr 2021 00:15 Cervantes 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
12 Apr 2021 00:00 Seabird 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 00:00 Guilderton Australia  0.2
12 Apr 2021 19:45 Losan Indonesia  0.2
12 Apr 2021 20:00 Bulakamba 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
12 Apr 2021 00:45 Mullalloo Beach Australia  0.2
12 Apr 2021 00:45 North Beach Australia  0.2
12 Apr 2021 00:45 Scarborough Australia  0.2
12 Apr 2021 01:15 Mosman Park Australia  0.2
12 Apr 2021 01:15 Cottesloe Australia  0.2
12 Apr 2021 01:15 Peppermint Grove Australia  0.2
12 Apr 2021 01:15 Swanbourne Australia  0.2
12 Apr 2021 01:15 Claremont Australia  0.2
12 Apr 2021 01:15 Bicton Australia  0.2
12 Apr 2021 15:00 Maringgai Indonesia  0.2
12 Apr 2021 19:30 Klampok Indonesia  0.2
11 Apr 2021 18:45 Falcon Australia  0.2
11 Apr 2021 18:45 Mandurah Australia  0.2
11 Apr 2021 18:45 Peelhurst Australia  0.2
11 Apr 2021 18:45 Singleton Australia  0.2
11 Apr 2021 18:45 Karnup Australia  0.2
10 Apr 2021 08:00 East Lewis I Australia  0.2
10 Apr 2021 08:00 Dampier Australia  0.2
10 Apr 2021 06:00 Blimbing Indonesia  0.2
10 Apr 2021 06:00 Dadapan Indonesia  0.2
10 Apr 2021 06:00 Banyuwangi Indonesia  0.2
10 Apr 2021 06:00 Banjuwangi Indonesia  0.2
10 Apr 2021 06:00 Soega Indonesia  0.2
10 Apr 2021 06:00 Gilimanuk Indonesia  0.2
10 Apr 2021 06:00 Penginoeman Indonesia  0.2
10 Apr 2021 06:00 Belimbingsari Indonesia  0.2
10 Apr 2021 06:00 Tjandikesuma Indonesia  0.2
10 Apr 2021 07:30 Cardabia Australia  0.2
12 Apr 2021 15:00 Cengkarengbelakang Indonesia  0.2
12 Apr 2021 15:00 Tipar Indonesia  0.2
12 Apr 2021 15:00 Balubuk Indonesia  0.2
12 Apr 2021 14:45 Tanara Indonesia  0.2
12 Apr 2021 14:45 Ketapang Indonesia  0.2
12 Apr 2021 14:45 Kramat Indonesia  0.2
11 Apr 2021 20:15 Gracetown Australia  0.2
12 Apr 2021 15:00 Domas Indonesia  0.2
10 Apr 2021 06:30 Kencong Indonesia  0.2
10 Apr 2021 06:30 Lodjedjer Indonesia  0.2
12 Apr 2021 20:00 Tegal Indonesia  0.2
12 Apr 2021 15:00 Pedes Indonesia  0.2
12 Apr 2021 15:00 Sungaibuntu Indonesia  0.2
13 Apr 2021 02:45 Merak Indonesia  0.2
12 Apr 2021 20:15 Wanasari Indonesia  0.2
12 Apr 2021 20:15 Pemalang Indonesia  0.2
13 Apr 2021 02:15 Ketapang Indonesia  0.2
12 Apr 2021 20:15 Petaroekan Indonesia  0.2
12 Apr 2021 20:15 Sigedang Indonesia  0.2
12 Apr 2021 20:15 Pekalongan Indonesia  0.2
12 Apr 2021 20:15 Sidja 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
12 Apr 2021 20:00 Djomblang Indonesia  0.2
12 Apr 2021 20:00 Semarang Indonesia  0.2
12 Apr 2021 20:00 Karangroto Indonesia  0.2
12 Apr 2021 20:00 Wedung Indonesia  0.2
12 Apr 2021 20:00 Kedungmalang Indonesia  0.2
12 Apr 2021 20:45 Kendal Indonesia  0.2
12 Apr 2021 20:45 Mangkang-Kulan Indonesia  0.2
10 Apr 2021 07:30 Aplame Indonesia  0.2
10 Apr 2021 07:30 Woereh Indonesia  0.2
10 Apr 2021 07:30 Lewohajong Indonesia  0.2
10 Apr 2021 07:30 Koekoewerang Indonesia  0.2
10 Apr 2021 07:30 Throng Indonesia  0.2
10 Apr 2021 07:30 Adoenara Indonesia  0.2
10 Apr 2021 07:30 Lamakera Indonesia  0.2
10 Apr 2021 07:30 Papelawe Indonesia  0.2
10 Apr 2021 07:30 Sagu Indonesia  0.2
10 Apr 2021 07:30 Wotanglolong Indonesia  0.2
10 Apr 2021 07:30 Lewokeling Indonesia  0.2
10 Apr 2021 07:30 Witihama Indonesia  0.2
10 Apr 2021 07:30 Boleng Indonesia  0.2
10 Apr 2021 07:30 Nereng Indonesia  0.2
10 Apr 2021 13:45 Lewoleba Indonesia  0.2
10 Apr 2021 13:45 Lamanuna Indonesia  0.2
12 Apr 2021 14:15 Kandangan Indonesia  0.2
12 Apr 2021 14:15 Gresik Indonesia  0.2
12 Apr 2021 14:15 Pangkalan Indonesia  0.2
12 Apr 2021 14:15 Batoe Porong Indonesia  0.2
12 Apr 2021 14:15 Kebanjar Indonesia  0.2
12 Apr 2021 20:15 Bugel Indonesia  0.2
12 Apr 2021 20:15 Jepara Indonesia  0.2
12 Apr 2021 08:15 Ngalu Indonesia  0.2
12 Apr 2021 08:15 Tapil Indonesia  0.2
10 Apr 2021 16:15 Kiluan Indonesia  0.2
10 Apr 2021 16:15 Kekatang Indonesia  0.2
12 Apr 2021 20:00 Karanggondang Indonesia  0.1
10 Apr 2021 18:15 Broome Australia  0.1
10 Apr 2021 13:30 Muntjar Indonesia  0.1
10 Apr 2021 10:30 Oeboeah Indonesia  0.1
10 Apr 2021 10:30 Hansisi Indonesia  0.1
10 Apr 2021 10:30 Naioni Indonesia  0.1
10 Apr 2021 10:30 Tenau Indonesia  0.1
10 Apr 2021 10:30 Manoelairoti Indonesia  0.1
10 Apr 2021 10:30 Namosain Indonesia  0.1
10 Apr 2021 10:30 Kupang Indonesia  0.1
10 Apr 2021 10:30 Soelamoe Indonesia  0.1
10 Apr 2021 10:30 Maoelafa Indonesia  0.1
10 Apr 2021 10:30 Pitai Indonesia  0.1
10 Apr 2021 10:30 Manikin Indonesia  0.1
10 Apr 2021 10:30 Pariti Indonesia  0.1
10 Apr 2021 10:30 Naimoeti Indonesia  0.1
10 Apr 2021 17:45 Thangoo Australia  0.1
12 Apr 2021 14:15 Pasirputih Indonesia  0.1
12 Apr 2021 14:15 Muaratjilamaja Indonesia  0.1
13 Apr 2021 02:30 Bakau Indonesia  0.1
12 Apr 2021 20:15 Indramaju Indonesia  0.1
10 Apr 2021 16:15 Wickham Australia  0.1
10 Apr 2021 16:15 Point Samson Australia  0.1
10 Apr 2021 16:15 Cossack Australia  0.1
12 Apr 2021 14:00 Baliga Indonesia  0.1
12 Apr 2021 14:00 Laboean Indonesia  0.1
10 Apr 2021 22:00 Ningaloo Australia  0.1
10 Apr 2021 17:30 Condon Australia  0.1
10 Apr 2021 16:15 Guring Indonesia  0.1
10 Apr 2021 16:15 Kota Agung Indonesia  0.1
10 Apr 2021 10:45 Derby Australia  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
10 Apr 2021 16:30 Pardoo Australia  0.1
12 Apr 2021 19:45 Karangsari Indonesia  0.1
12 Apr 2021 15:30 Sidaju Indonesia  0.1
11 Apr 2021 04:15 Batuulo Indonesia  0.1
12 Apr 2021 14:30 Patrol Indonesia  0.1
12 Apr 2021 20:15 Taju Indonesia  0.1
12 Apr 2021 21:45 Cangkring Indonesia  0.1
12 Apr 2021 19:15 Bulumanis Indonesia  0.1
10 Apr 2021 07:45 Lamararap Indonesia  0.1
10 Apr 2021 13:45 Laboean Mapin Indonesia  0.1
10 Apr 2021 13:45 Alas Indonesia  0.1
10 Apr 2021 13:45 Pernang Indonesia  0.1
13 Apr 2021 03:00 Eucla Motel Australia  0.1
12 Apr 2021 14:15 Kandanghaur Indonesia  0.1
10 Apr 2021 11:15 Brassan Indonesia  0.1
10 Apr 2021 13:15 Bundera Bundera Australia  0.1
12 Apr 2021 19:45 Batangan Indonesia  0.1
12 Apr 2021 19:45 Rembang Indonesia  0.1
13 Apr 2021 02:30 Sidoardjo Indonesia  0.1
13 Apr 2021 02:30 Sumberkuning 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
13 Apr 2021 02:00 Anjer-Kidu Indonesia  0.1
12 Apr 2021 10:15 Esperance Australia  0.1
12 Apr 2021 10:15 Doombup Australia  0.1
10 Apr 2021 10:00 Karratha Australia  0.1
13 Apr 2021 02:15 Pasuruan Indonesia  0.1
10 Apr 2021 16:00 Pender Australia  0.1
13 Apr 2021 02:00 Sampang Indonesia  0.1
13 Apr 2021 06:00 Latuna Indonesia  0.1
13 Apr 2021 06:00 Bagang Indonesia  0.1
13 Apr 2021 06:00 Toebal Indonesia  0.1
13 Apr 2021 06:00 Noehawaila Indonesia  0.1
13 Apr 2021 06:00 Tamelabang Indonesia  0.1
13 Apr 2021 06:00 Kabir Indonesia  0.1
13 Apr 2021 06:00 Maria Indonesia  0.1
13 Apr 2021 06:00 Alor-kecil Indonesia  0.1
10 Apr 2021 13:00 Waingapu Indonesia  0.1
10 Apr 2021 13:00 Matawai Indonesia  0.1
10 Apr 2021 13:00 Pajeti Indonesia  0.1
10 Apr 2021 13:00 Lakohembi Indonesia  0.1
10 Apr 2021 06:30 Tjikawung Indonesia  0.1
10 Apr 2021 06:30 Aerdjeruk Indonesia  0.1
10 Apr 2021 07:45 Sumur Indonesia  0.1
10 Apr 2021 10:30 Karangberak Indonesia  0.1
10 Apr 2021 10:30 Sawangbalak Indonesia  0.1
10 Apr 2021 10:30 Bandjaragung Indonesia  0.1
10 Apr 2021 17:15 Port Hedland Australia  0.1
10 Apr 2021 17:15 Wedgefield Australia  0.1
10 Apr 2021 15:30 Chilachap Indonesia  0.1
10 Apr 2021 15:30 Adipala Indonesia  0.1
12 Apr 2021 20:15 Banjoebiroe Indonesia  0.1
12 Apr 2021 20:15 Cupel Indonesia  0.1
12 Apr 2021 20:15 Banjuwedang Indonesia  0.1
12 Apr 2021 20:15 Prancak Indonesia  0.1
12 Apr 2021 20:15 Negara Indonesia  0.1
12 Apr 2021 09:30 Riung Indonesia  0.1
12 Apr 2021 09:30 Boras Indonesia  0.1
12 Apr 2021 09:30 Posolik Indonesia  0.1
12 Apr 2021 09:30 Makitoenggoeng Indonesia  0.1
10 Apr 2021 14:00 Binangoen Indonesia  0.1
10 Apr 2021 14:00 Ajah Indonesia  0.1
12 Apr 2021 13:30 Bayeman Indonesia  0.1
12 Apr 2021 04:45 Ketapang Indonesia  0.1
12 Apr 2021 04:45 Kelapang Indonesia  0.1
12 Apr 2021 04:45 Sokabana Indonesia  0.1
12 Apr 2021 05:15 Tlagabiru Indonesia  0.1
12 Apr 2021 05:15 Banjoeates Indonesia  0.1
12 Apr 2021 19:30 Lasem Indonesia  0.1
13 Apr 2021 02:00 Probolinggo Indonesia  0.1
12 Apr 2021 10:15 Lautem Timor-Leste  0.1
12 Apr 2021 13:30 Ambunten-timu Indonesia  0.1
12 Apr 2021 13:30 Belukares Indonesia  0.1