Overall Green alert Tropical Cyclone for SEROJA-21
in Australia, Indonesia
06 Apr 2021 18 UTC
click on to select bulletin time
  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone SEROJA-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries Australia, Indonesia
    Exposed population 60 thousand in Category 1 or higher
    Maximum wind speed 130 km/h
    Maximum storm surge 0.8 m (06 Apr 23:00 UTC)
    Vulnerability Low (Australia)
    Landfall between
    10 Apr 2021 18:00 - 11 Apr 2021 18:00
    in 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
    Current 194 km/h 0.8 m n.a. 0.5
    Overall 130 km/h 0.8 m n.a. 0.5

    Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

    TOP

    Wind

      194 km/h Current Max.

      Up to 45000 people in Category 1 strength or higher (see SSHS)

      Impact Timeline

        Alert N° Date (UTC) Max Winds (km/h) Population in
        Tropical Storm or higher        		 Population in
        Cat 1. or higher        		 Countries
        Green 1 04 Apr 2021 12:00 157 560 thousand No people Indonesia
        Green 2 04 Apr 2021 18:00 185 2 million No people Indonesia
        Green 3 05 Apr 2021 06:00 194 1.2 million No people Indonesia
        Green 4 05 Apr 2021 12:00 185 1.2 million No people Indonesia
        Green 5 05 Apr 2021 12:00 157 1.2 million No people Indonesia
        Green 6 05 Apr 2021 18:00 194 1.2 million No people Indonesia
        Green 7 06 Apr 2021 00:00 194 1.2 million No people Indonesia
        Green 8 06 Apr 2021 06:00 194 1.2 million No people Indonesia
        Green 9 06 Apr 2021 12:00 185 1.2 million No people Australia
        Green 10 06 Apr 2021 18:00 194 1.3 million 40 thousand Australia

        Bulletin Timeline

          Alert N° Date (UTC) Category
          (SSHS)           		Max winds
          (km/h)           		Population in
          Cat.1 or higher           		Population in
          Tropical Storm
          or higher           		Location (lat, lon) Countries
          GREEN
          		 1 04 Apr 2021 12:00 Tropical storm 65 no people 91000 people -10.4, 123.2
          GREEN
          		 2 04 Apr 2021 18:00 Tropical storm 83 no people 2 million people -10.5, 123
          GREEN
          		 3 05 Apr 2021 06:00 Tropical storm 93 no people 280000 people -11.1, 121.9
          GREEN
          		 4 05 Apr 2021 12:00 Tropical storm 93 no people 190000 people -11.2, 121.5
          GREEN
          		 5 05 Apr 2021 12:00 Tropical storm 93 no people 190000 people -11.2, 121.5
          GREEN
          		 6 05 Apr 2021 18:00 Tropical storm 93 no people 150000 people -11.3, 120.7
          GREEN
          		 7 06 Apr 2021 00:00 Tropical storm 102 no people 37000 people -11.5, 120.1
          GREEN
          		 8 06 Apr 2021 06:00 Tropical storm 93 no people no people -11.5, 118.9
          GREEN
          		 9 06 Apr 2021 12:00 Tropical storm 93 no people no people -11.9, 119.3
          GREEN
          		 10 06 Apr 2021 18:00 Tropical storm 83 no people no people -12.3, 119
          GREEN
          		 10 07 Apr 2021 06:00 Tropical storm 83 no people no people -13.5, 117.4
          GREEN
          		 10 07 Apr 2021 18:00 Tropical storm 93 no people no people -14.5, 115.7
          GREEN
          		 10 08 Apr 2021 06:00 Tropical storm 102 no people no people -15.9, 114.2
          GREEN
          		 10 08 Apr 2021 18:00 Category 1 130 no people no people -17.3, 112.7
          GREEN
          		 10 09 Apr 2021 18:00 Category 3 185 no people no people -19.6, 110.6
          GREEN
          		 10 10 Apr 2021 18:00 Category 3 194 45000 people 58000 people -22.8, 109.9
          GREEN
          		 10 11 Apr 2021 18:00 Category 1 139 no people no people -27.9, 114.8 Australia
          Actual track of the current bulletin
          The alert for forecast greater than 3 days is limited to Orange level.
          Download:



          Exposed population - AoIs

          Exposed population in the potential affected countries, provinces and populated places

          Countries

          Country
          Australia

          Provinces

          Region Province Country
          Western Australia Australia

          Populated places

          Name Region Province Country City class Population
          Geraldton Western Australia Australia City 27000 people

          Critical infrastructure

          Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

          Airports

          Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
          Shark Bay MJK 34 Priv. Paved No 5500
          Useless Loop USL unknown 0
          Kalbarri KAX unknown 0
          Mullewa MXU unknown 0
          Geraldton GET 37 Civ. Paved Yes 6400

          Ports

          Name LOCODE Country
          Hamelin Pool Coral Sea Islands
          Denham Coral Sea Islands
          Useless Loop AUUSL Coral Sea Islands
          Bluff Point Coral Sea Islands
          Port Gregory Coral Sea Islands
          Geraldton AUGET Coral Sea Islands
          TOP

          Rainfall

          Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

          ...

          TOP

          StormSurge

          0.8 m

          The maximum Storm surge height is  0.8m in Siduk, Indonesia. This height is estimated for 06 Apr 2021 23:00 UTC .

          The JRC has developed an experimental global storm surge model. 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.

          Locations affected by Storm surge (192 locations). Calculation based on advisory number 10 of 06 Apr 2021 18:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          06 Apr 2021 23:00 Siduk Indonesia  0.8
          05 Apr 2021 00:00 Pulaukumbang Indonesia  0.8
          06 Apr 2021 23:00 Sungaitulak Indonesia  0.8
          06 Apr 2021 23:00 Sukadana Indonesia  0.8
          06 Apr 2021 23:00 Soengaitoelak Indonesia  0.7
          06 Apr 2021 23:00 Doesoen Besar Indonesia  0.7
          06 Apr 2021 23:00 Sungaibuaja Indonesia  0.7
          06 Apr 2021 23:00 Padangtikar Indonesia  0.6
          06 Apr 2021 22:00 Telukawah Indonesia  0.6
          06 Apr 2021 22:00 Satai Indonesia  0.6
          07 Apr 2021 00:00 Pelang Indonesia  0.6
          07 Apr 2021 00:00 Pesaguan Indonesia  0.6
          07 Apr 2021 00:00 Sungaitapah Indonesia  0.5
          07 Apr 2021 00:00 Pagarantimun Indonesia  0.5
          07 Apr 2021 00:00 Ketapang Indonesia  0.5
          06 Apr 2021 21:00 Sabui Indonesia  0.5
          04 Apr 2021 23:00 Pagatan Indonesia  0.5
          05 Apr 2021 00:00 Telukpahedai Indonesia  0.5
          06 Apr 2021 23:00 Betingtinggi Indonesia  0.5
          05 Apr 2021 00:00 Kertamulia Indonesia  0.5
          07 Apr 2021 00:00 Pulaukutjing Indonesia  0.5
          05 Apr 2021 01:00 Telukketapang Indonesia  0.4
          05 Apr 2021 01:00 Sungaikakip Indonesia  0.4
          05 Apr 2021 00:00 Kualalupak Indonesia  0.4
          05 Apr 2021 00:00 Aluhaluh Indonesia  0.4
          05 Apr 2021 00:00 Tambakkarangan Indonesia  0.4
          05 Apr 2021 00:00 Tabanio Indonesia  0.4
          05 Apr 2021 00:00 Bawahalajung Indonesia  0.4
          07 Apr 2021 08:00 Pender Australia  0.4
          05 Apr 2021 00:00 Pagetan Indonesia  0.4
          07 Apr 2021 07:00 Derby Australia  0.4
          05 Apr 2021 06:00 Semisir Indonesia  0.4
          04 Apr 2021 23:00 Bapuju Indonesia  0.4
          04 Apr 2021 23:00 Bahaur Indonesia  0.4
          04 Apr 2021 23:00 Setiroek Indonesia  0.4
          06 Apr 2021 21:00 Koealasapo Indonesia  0.4
          05 Apr 2021 08:00 Soengaibali Indonesia  0.4
          05 Apr 2021 06:00 Pagatan Indonesia  0.3
          05 Apr 2021 06:00 Salinau Indonesia  0.3
          05 Apr 2021 06:00 Semaras Indonesia  0.3
          05 Apr 2021 06:00 Okaoka Indonesia  0.3
          06 Apr 2021 22:00 Mutua Indonesia  0.3
          06 Apr 2021 22:00 Tandjoengselaka Indonesia  0.3
          05 Apr 2021 00:00 Batakam Indonesia  0.3
          05 Apr 2021 06:00 Tapianbalai Indonesia  0.3
          06 Apr 2021 21:00 Loentji Indonesia  0.3
          07 Apr 2021 09:00 Kollan I Australia  0.3
          07 Apr 2021 00:00 Padang Indonesia  0.3
          07 Apr 2021 00:00 Teloekkapalpetjah Indonesia  0.3
          07 Apr 2021 00:00 Tungkaranasam Indonesia  0.3
          07 Apr 2021 07:00 East Lewis I Australia  0.3
          05 Apr 2021 06:00 Boenati Indonesia  0.3
          05 Apr 2021 08:00 Sekapoeng Indonesia  0.3
          07 Apr 2021 14:00 Wickham Australia  0.3
          07 Apr 2021 14:00 Point Samson Australia  0.3
          07 Apr 2021 14:00 Cossack Australia  0.3
          07 Apr 2021 12:00 Broome Australia  0.2
          07 Apr 2021 13:00 Condon Australia  0.2
          07 Apr 2021 12:00 Thangoo Australia  0.2
          07 Apr 2021 12:00 Kennedys Cottage Australia  0.2
          07 Apr 2021 12:00 Waterbank Australia  0.2
          06 Apr 2021 22:00 Lait Indonesia  0.2
          05 Apr 2021 00:00 Tampoena Wo Indonesia  0.2
          04 Apr 2021 17:00 Suaha Indonesia  0.2
          04 Apr 2021 17:00 Keoen Indonesia  0.2
          06 Apr 2021 21:00 Matoegoe Indonesia  0.2
          06 Apr 2021 19:00 Suakgual Indonesia  0.2
          06 Apr 2021 19:00 Nasik Indonesia  0.2
          06 Apr 2021 19:00 Petaling Indonesia  0.2
          06 Apr 2021 19:00 Tandjungpandan Indonesia  0.2
          06 Apr 2021 19:00 Tandjungbinga Indonesia  0.2
          06 Apr 2021 21:00 Salebam Indonesia  0.2
          06 Apr 2021 19:00 Pangkal Dudat Indonesia  0.2
          05 Apr 2021 02:00 Larrakeyah Australia  0.2
          05 Apr 2021 02:00 Fannie Bay Australia  0.2
          05 Apr 2021 02:00 Parap Australia  0.2
          05 Apr 2021 02:00 Darwin Australia  0.2
          05 Apr 2021 02:00 Ludmilla Australia  0.2
          05 Apr 2021 02:00 Bagot Australia  0.2
          04 Apr 2021 16:00 Daeoerendale Indonesia  0.2
          04 Apr 2021 16:00 Eahun Indonesia  0.2
          04 Apr 2021 16:00 Roti Indonesia  0.2
          05 Apr 2021 00:00 Pamandali Indonesia  0.2
          05 Apr 2021 00:00 Tioro Indonesia  0.2
          05 Apr 2021 00:00 Kembano Indonesia  0.2
          05 Apr 2021 00:00 Tampo Indonesia  0.2
          05 Apr 2021 00:00 Kolono Indonesia  0.2
          05 Apr 2021 00:00 Napabalana Indonesia  0.2
          05 Apr 2021 00:00 Rumba Indonesia  0.2
          05 Apr 2021 00:00 Koroni Indonesia  0.2
          05 Apr 2021 00:00 Bangbong Indonesia  0.2
          05 Apr 2021 00:00 Roode Huk Indonesia  0.2
          05 Apr 2021 00:00 Tuetue Indonesia  0.2
          05 Apr 2021 00:00 Walue Indonesia  0.2
          05 Apr 2021 00:00 Labuban-Tobelo Indonesia  0.2
          04 Apr 2021 23:00 Segintong Indonesia  0.2
          06 Apr 2021 21:00 Tamalaba Indonesia  0.2
          05 Apr 2021 02:00 Nightcliff Australia  0.2
          07 Apr 2021 17:00 Ah Chong I Australia  0.2
          07 Apr 2021 17:00 Mardie Australia  0.2
          05 Apr 2021 06:00 Sampungbinangu Indonesia  0.2
          04 Apr 2021 18:00 Kandangan Indonesia  0.2
          05 Apr 2021 06:00 Tjadia Indonesia  0.2
          05 Apr 2021 06:00 Kanaoengan Indonesia  0.2
          07 Apr 2021 06:00 Makasar Indonesia  0.2
          05 Apr 2021 00:00 Naoer Indonesia  0.2
          04 Apr 2021 16:00 Hala Indonesia  0.2
          04 Apr 2021 16:00 Usulain Indonesia  0.2
          05 Apr 2021 06:00 Bontobonto Indonesia  0.2
          04 Apr 2021 21:00 Oeseda Indonesia  0.2
          04 Apr 2021 21:00 Namodale Indonesia  0.2
          04 Apr 2021 15:00 Nordale Indonesia  0.2
          04 Apr 2021 15:00 Korlo Indonesia  0.2
          06 Apr 2021 20:00 Manda Indonesia  0.2
          05 Apr 2021 00:00 Tiempae Indonesia  0.2
          05 Apr 2021 06:00 Mandalle Indonesia  0.2
          07 Apr 2021 06:00 Sanrabone Indonesia  0.2
          05 Apr 2021 06:00 Padaelo Indonesia  0.2
          05 Apr 2021 00:00 Sanindara Indonesia  0.2
          04 Apr 2021 21:00 Ulua Indonesia  0.1
          04 Apr 2021 18:00 Baa Indonesia  0.1
          04 Apr 2021 18:00 Oenggae Indonesia  0.1
          04 Apr 2021 14:00 Oetefoe-besar Indonesia  0.1
          04 Apr 2021 14:00 Akle Indonesia  0.1
          05 Apr 2021 09:00 Ege Indonesia  0.1
          05 Apr 2021 09:00 Kotahawoe Indonesia  0.1
          07 Apr 2021 03:00 Leanyer Australia  0.1
          04 Apr 2021 21:00 Minjilang Australia  0.1
          04 Apr 2021 23:00 Sawarangan Indonesia  0.1
          04 Apr 2021 14:00 Besdale Indonesia  0.1
          05 Apr 2021 00:00 Lakara Indonesia  0.1
          05 Apr 2021 00:00 Toroboeloe Indonesia  0.1
          07 Apr 2021 06:00 Gailesong Indonesia  0.1
          07 Apr 2021 06:00 Karamak Indonesia  0.1
          05 Apr 2021 00:00 Agatebi Indonesia  0.1
          04 Apr 2021 15:00 Oetefoe-ketjil Indonesia  0.1
          05 Apr 2021 08:00 Baah Indonesia  0.1
          05 Apr 2021 10:00 Boedae Indonesia  0.1
          05 Apr 2021 00:00 Kasiputih Indonesia  0.1
          05 Apr 2021 00:00 Sajengga Indonesia  0.1
          05 Apr 2021 00:00 Laora Indonesia  0.1
          05 Apr 2021 00:00 Wansabari Indonesia  0.1
          06 Apr 2021 20:00 Djepuh Indonesia  0.1
          04 Apr 2021 20:00 Toedameda Indonesia  0.1
          04 Apr 2021 20:00 Batutuah Indonesia  0.1
          04 Apr 2021 15:00 Silain Indonesia  0.1
          04 Apr 2021 18:00 Oeboeah Indonesia  0.1
          04 Apr 2021 15:00 Oisina Indonesia  0.1
          04 Apr 2021 15:00 Tablolong Indonesia  0.1
          04 Apr 2021 18:00 Hansisi Indonesia  0.1
          04 Apr 2021 18:00 Tenau Indonesia  0.1
          04 Apr 2021 18:00 Namosain Indonesia  0.1
          04 Apr 2021 18:00 Kupang Indonesia  0.1
          05 Apr 2021 08:00 Below Indonesia  0.1
          05 Apr 2021 07:00 Mboe Eain Indonesia  0.1
          04 Apr 2021 20:00 Nembrala Indonesia  0.1
          04 Apr 2021 20:00 Nemperola Indonesia  0.1
          04 Apr 2021 20:00 Abuan Indonesia  0.1
          05 Apr 2021 11:00 Langadai Indonesia  0.1
          05 Apr 2021 11:00 Sansang Indonesia  0.1
          05 Apr 2021 11:00 Senaking Indonesia  0.1
          05 Apr 2021 11:00 Sungaianjar Indonesia  0.1
          05 Apr 2021 11:00 Merapo Indonesia  0.1
          07 Apr 2021 00:00 Sagu Indonesia  0.1
          05 Apr 2021 06:00 Bisali Indonesia  0.1
          05 Apr 2021 06:00 Laboso Indonesia  0.1
          06 Apr 2021 19:00 Lakadea Indonesia  0.1
          06 Apr 2021 19:00 Tongkuno Indonesia  0.1
          04 Apr 2021 15:00 Butuinan Indonesia  0.1
          04 Apr 2021 19:00 Poeloedae Indonesia  0.1
          04 Apr 2021 19:00 Soelamoe Indonesia  0.1
          05 Apr 2021 09:00 Kota Boddo Indonesia  0.1
          05 Apr 2021 09:00 Wawarei Indonesia  0.1
          05 Apr 2021 09:00 Seba Indonesia  0.1
          04 Apr 2021 19:00 Menloda Indonesia  0.1
          04 Apr 2021 19:00 Saisum Indonesia  0.1
          07 Apr 2021 00:00 Sungaipadang Indonesia  0.1
          06 Apr 2021 23:00 Padang Indonesia  0.1
          06 Apr 2021 23:00 Manggar Indonesia  0.1
          06 Apr 2021 23:00 Lipatkadjang Indonesia  0.1
          05 Apr 2021 00:00 Tanam Indonesia  0.1
          05 Apr 2021 00:00 Kamboeriami Indonesia  0.1
          05 Apr 2021 00:00 Kinara Indonesia  0.1
          05 Apr 2021 00:00 Aoem Indonesia  0.1
          05 Apr 2021 00:00 Moegoetira Indonesia  0.1
          05 Apr 2021 00:00 Sakaoeni Indonesia  0.1
          04 Apr 2021 19:00 Husdale Indonesia  0.1
          04 Apr 2021 19:00 Pitai Indonesia  0.1
          04 Apr 2021 19:00 Manikin Indonesia  0.1
          04 Apr 2021 19:00 Pariti Indonesia  0.1
          04 Apr 2021 19:00 Naimoeti Indonesia  0.1
          04 Apr 2021 21:00 Batuoge Indonesia  0.1