Overall Green alert Tropical Cyclone for THREE-20
in Australia
08 Dec 2020 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 THREE-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries Australia
    Exposed population No people in Category 1 or higher
    Maximum wind speed 83 km/h
    Maximum storm surge 1.1 m (11 Dec 11:00 UTC)
    Vulnerability Low (Australia)
    Landfall between
    10 Dec 2020 18:00 - 11 Dec 2020 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 93 km/h 1.1 m n.a. 0.5
    Overall 83 km/h 1.1 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

      93 km/h Current Max.

      Up to 66000 people in Tropical Storm 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 08 Dec 2020 18:00 93 70 thousand No people 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 08 Dec 2020 18:00 Tropical storm 83 no people no people -11, 108.5
          GREEN
          		 1 09 Dec 2020 06:00 Tropical storm 93 no people no people -11.7, 109.8
          GREEN
          		 1 09 Dec 2020 18:00 Tropical storm 83 no people no people -13, 111.2
          GREEN
          		 1 10 Dec 2020 06:00 Tropical storm 83 no people no people -14.5, 112.7
          GREEN
          		 1 10 Dec 2020 18:00 Tropical storm 74 no people 62000 people -16.6, 115.1
          GREEN
          		 1 11 Dec 2020 18:00 Tropical storm 65 no people 47000 people -22, 121 Australia
          GREEN
          		 1 12 Dec 2020 18:00 Tropical depression 56 no people no people -27.1, 125.4 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
          South Australia Australia

          Populated places

          Name Region Province Country City class Population
          Dampier Western Australia Australia City -
          Karratha Western Australia Australia City 11000 people
          Port Hedland Western Australia Australia City 14000 people
          Wedgefield Western Australia Australia City -
          South Hedland Western Australia Australia City -
          Mount Goldsworthy Western Australia Australia City -
          Wittenoom Gorge Western Australia Australia City -
          Tom Price Western Australia Australia City -
          Newman Western Australia Australia City -

          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)
          Karratha KTA 9 Civ. Paved Yes 6000
          Roebourne RBU unknown 0
          Port Hedland PHE 10 Civ. Paved Yes 8200
          Coolawanyah COY unknown 0
          Pardoo PRD unknown 0
          Mt. Goldsworthy GLY unknown 0
          Tom Price TPR unknown 0
          Wallal WLA unknown 0
          Shay Gap SGP unknown 0
          Wittenoom Gorge WIT unknown 0
          Muccan MUQ unknown 0
          Marble Bar MBB unknown 0
          Shaw River SWB unknown 0
          Mandora MQA unknown 0
          Paraburdoo PBO 429 Civ. Paved Yes 6900
          Warrawagine WRW unknown 0
          Nullagine NLL unknown 0
          Roy Hill RHL unknown 0
          Woodie Woodie WWI unknown 0
          Newman ZNE 525 Civ. Paved Yes 6700
          Nifty NIF 295 0
          Telfer TEF 295 Civ. Paved Yes 6500
          Wiluna WUN 501 Civ. Unpaved Yes 5900
          Jundee 561 Priv. Paved Yes 6800
          Bronzewing 500 Priv. Paved Yes 5900
          Windarra WND unknown 0
          Laverton LVO 465 Civ. Paved Yes 5900
          Warburton 456 Civ. Unpaved Yes 3000

          Ports

          Name LOCODE Country
          Cossack Pioneer AUCOP Coral Sea Islands
          Varanus Island AUVAR Coral Sea Islands
          Wandoo Marine Terminal Coral Sea Islands
          Cape Preston AUCPN Coral Sea Islands
          Dampier AUDAM Coral Sea Islands
          Withnell Bay Coral Sea Islands
          Point Samson AUPSM Coral Sea Islands
          Roebourne AURBU Coral Sea Islands
          Port Walcott AUPWL Coral Sea Islands
          Port Hedland AUPHE Coral Sea Islands
          Lagrange Coral Sea Islands

          Dams

          Reservoir Dam Name River Year
          Poongkaliyarra Harding Harding 1985
          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

          1.1 m

          The maximum Storm surge height is  1.1m in Condon, Australia. This height is estimated for 11 Dec 2020 11:00 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 (186 locations). Calculation based on advisory number 1 of 08 Dec 2020 18:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          11 Dec 2020 11:00 Condon Australia  1.1
          11 Dec 2020 13:00 Derby Australia  0.9
          11 Dec 2020 21:00 Thangoo Australia  0.9
          11 Dec 2020 21:00 Broome Australia  0.7
          11 Dec 2020 14:00 Waterbank Australia  0.6
          11 Dec 2020 02:00 East Lewis I Australia  0.6
          11 Dec 2020 14:00 Kennedys Cottage Australia  0.6
          11 Dec 2020 09:00 Pender Australia  0.6
          09 Dec 2020 20:00 Sungaitulak Indonesia  0.5
          09 Dec 2020 20:00 Siduk Indonesia  0.5
          09 Dec 2020 20:00 Soengaitoelak Indonesia  0.5
          09 Dec 2020 20:00 Telukawah Indonesia  0.5
          10 Dec 2020 22:00 Wickham Australia  0.5
          10 Dec 2020 22:00 Point Samson Australia  0.5
          10 Dec 2020 22:00 Cossack Australia  0.5
          08 Dec 2020 20:00 Semarang Indonesia  0.5
          08 Dec 2020 20:00 Wedung Indonesia  0.5
          08 Dec 2020 20:00 Bugel Indonesia  0.5
          08 Dec 2020 20:00 Karangroto Indonesia  0.4
          09 Dec 2020 20:00 Pelang Indonesia  0.4
          09 Dec 2020 20:00 Pagarantimun Indonesia  0.4
          09 Dec 2020 20:00 Pesaguan Indonesia  0.4
          09 Dec 2020 20:00 Sungaitapah Indonesia  0.4
          09 Dec 2020 20:00 Sukadana Indonesia  0.4
          11 Dec 2020 01:00 Ah Chong I Australia  0.4
          09 Dec 2020 04:00 Setiroek Indonesia  0.4
          08 Dec 2020 20:00 Kedungmalang Indonesia  0.4
          09 Dec 2020 04:00 Pagatan Indonesia  0.4
          09 Dec 2020 03:00 Sabui Indonesia  0.4
          09 Dec 2020 20:00 Pulaukutjing Indonesia  0.3
          08 Dec 2020 20:00 Mangkang-Kulan Indonesia  0.3
          09 Dec 2020 03:00 Koealasapo Indonesia  0.3
          08 Dec 2020 20:00 Kendal Indonesia  0.3
          09 Dec 2020 22:00 Klampis Indonesia  0.3
          09 Dec 2020 05:00 Bapuju Indonesia  0.3
          09 Dec 2020 05:00 Bahaur Indonesia  0.3
          09 Dec 2020 20:00 Satai Indonesia  0.3
          09 Dec 2020 20:00 Ketapang Indonesia  0.3
          09 Dec 2020 03:00 Loentji Indonesia  0.3
          11 Dec 2020 10:00 Kollan I Australia  0.3
          09 Dec 2020 05:00 Kualalupak Indonesia  0.3
          09 Dec 2020 05:00 Aluhaluh Indonesia  0.3
          09 Dec 2020 05:00 Pagetan Indonesia  0.3
          09 Dec 2020 05:00 Tambakkarangan Indonesia  0.3
          09 Dec 2020 05:00 Bawahalajung Indonesia  0.3
          08 Dec 2020 21:00 Jepara Indonesia  0.3
          08 Dec 2020 21:00 Karanggondang Indonesia  0.3
          10 Dec 2020 04:00 Kandangan Indonesia  0.3
          09 Dec 2020 03:00 Mutua Indonesia  0.3
          09 Dec 2020 03:00 Tandjoengselaka Indonesia  0.3
          09 Dec 2020 05:00 Tabanio Indonesia  0.3
          10 Dec 2020 04:00 Batakam Indonesia  0.3
          08 Dec 2020 21:00 Sidja Indonesia  0.3
          09 Dec 2020 21:00 Sidaju Indonesia  0.3
          09 Dec 2020 21:00 Aermata Indonesia  0.3
          08 Dec 2020 20:00 Pemalang Indonesia  0.2
          08 Dec 2020 20:00 Petaroekan Indonesia  0.2
          08 Dec 2020 20:00 Sigedang Indonesia  0.2
          08 Dec 2020 21:00 Pekalongan Indonesia  0.2
          08 Dec 2020 22:00 Karangsari Indonesia  0.2
          09 Dec 2020 03:00 Segintong Indonesia  0.2
          08 Dec 2020 22:00 Lasem Indonesia  0.2
          08 Dec 2020 19:00 Tandjungkiras Indonesia  0.2
          08 Dec 2020 22:00 Kalipang Indonesia  0.2
          10 Dec 2020 06:00 Ardjasa Indonesia  0.2
          08 Dec 2020 23:00 Taju Indonesia  0.2
          08 Dec 2020 23:00 Bulumanis Indonesia  0.2
          08 Dec 2020 22:00 Remen Indonesia  0.2
          08 Dec 2020 23:00 Losan Indonesia  0.2
          08 Dec 2020 23:00 Bulakamba Indonesia  0.2
          08 Dec 2020 23:00 Klampok Indonesia  0.2
          08 Dec 2020 22:00 Padangan-wetan Indonesia  0.2
          08 Dec 2020 21:00 Brondong Indonesia  0.2
          10 Dec 2020 05:00 Songai Indonesia  0.2
          10 Dec 2020 20:00 Mardie Australia  0.2
          08 Dec 2020 22:00 Tegal Indonesia  0.2
          08 Dec 2020 22:00 Djenu Indonesia  0.2
          09 Dec 2020 21:00 Ketapang Indonesia  0.2
          09 Dec 2020 21:00 Sokabana Indonesia  0.2
          08 Dec 2020 19:00 Nasik Indonesia  0.2
          08 Dec 2020 19:00 Tandjungpandan Indonesia  0.2
          08 Dec 2020 19:00 Sidjuk Indonesia  0.2
          08 Dec 2020 22:00 Plosokere Indonesia  0.2
          08 Dec 2020 22:00 Tuban Indonesia  0.2
          10 Dec 2020 05:00 Katupat Indonesia  0.2
          10 Dec 2020 05:00 Djoengkat Indonesia  0.2
          10 Dec 2020 05:00 Brakas Indonesia  0.2
          08 Dec 2020 19:00 Suakgual Indonesia  0.2
          08 Dec 2020 19:00 Petaling Indonesia  0.2
          08 Dec 2020 21:00 Sapulu Indonesia  0.2
          10 Dec 2020 05:00 Kajuwaru Indonesia  0.2
          09 Dec 2020 21:00 Ambunten-timu Indonesia  0.2
          09 Dec 2020 22:00 Belukares Indonesia  0.2
          09 Dec 2020 22:00 Puteran Indonesia  0.2
          09 Dec 2020 22:00 Lombang Indonesia  0.2
          10 Dec 2020 05:00 Sokaramme Indonesia  0.2
          10 Dec 2020 05:00 Grajam Indonesia  0.2
          10 Dec 2020 05:00 Sonok Indonesia  0.2
          10 Dec 2020 05:00 Gajam Indonesia  0.2
          10 Dec 2020 05:00 Goa-daja Indonesia  0.2
          10 Dec 2020 08:00 Makasar Indonesia  0.2
          10 Dec 2020 08:00 Tamalaba Indonesia  0.2
          10 Dec 2020 09:00 Bisali Indonesia  0.2
          10 Dec 2020 00:00 Tambak Indonesia  0.1
          08 Dec 2020 23:00 Sangkapura Indonesia  0.1
          09 Dec 2020 22:00 Batuputihkenek Indonesia  0.1
          11 Dec 2020 20:00 Sanindara Indonesia  0.1
          08 Dec 2020 19:00 Tandjungbinga Indonesia  0.1
          09 Dec 2020 02:00 Boenati Indonesia  0.1
          09 Dec 2020 02:00 Pagatan Indonesia  0.1
          10 Dec 2020 04:00 Tambajangan Indonesia  0.1
          09 Dec 2020 02:00 Semisir Indonesia  0.1
          09 Dec 2020 02:00 Salinau Indonesia  0.1
          10 Dec 2020 09:00 Tapianbalai Indonesia  0.1
          09 Dec 2020 02:00 Semaras Indonesia  0.1
          10 Dec 2020 09:00 Okaoka Indonesia  0.1
          08 Dec 2020 23:00 Karangampel Indonesia  0.1
          10 Dec 2020 08:00 Sanrabone Indonesia  0.1
          10 Dec 2020 09:00 Tiempae Indonesia  0.1
          11 Dec 2020 19:00 Nightcliff Australia  0.1
          11 Dec 2020 19:00 Leanyer Australia  0.1
          10 Dec 2020 08:00 Gailesong Indonesia  0.1
          10 Dec 2020 09:00 Karamak Indonesia  0.1
          10 Dec 2020 09:00 Manda Indonesia  0.1
          10 Dec 2020 09:00 Mandalle Indonesia  0.1
          10 Dec 2020 09:00 Padaelo Indonesia  0.1
          10 Dec 2020 09:00 Sampungbinangu Indonesia  0.1
          08 Dec 2020 19:00 Balubuk Indonesia  0.1
          08 Dec 2020 23:00 Indramaju Indonesia  0.1
          09 Dec 2020 22:00 Padang Indonesia  0.1
          09 Dec 2020 03:00 Sawarangan Indonesia  0.1
          08 Dec 2020 19:00 Tipar Indonesia  0.1
          10 Dec 2020 04:00 Soemoerboengkar Indonesia  0.1
          10 Dec 2020 05:00 Batoemadeg Indonesia  0.1
          10 Dec 2020 05:00 Manggis Indonesia  0.1
          10 Dec 2020 05:00 Batoemoenggoel Indonesia  0.1
          10 Dec 2020 05:00 Tenganan Indonesia  0.1
          10 Dec 2020 05:00 Tanglad Indonesia  0.1
          10 Dec 2020 05:00 Amlapura Indonesia  0.1
          10 Dec 2020 05:00 Labuhanpon Indonesia  0.1
          10 Dec 2020 05:00 Banjuwedang Indonesia  0.1
          09 Dec 2020 12:00 Tempilang Indonesia  0.1
          09 Dec 2020 12:00 Keludin Indonesia  0.1
          09 Dec 2020 11:00 Radjik Indonesia  0.1
          09 Dec 2020 10:00 Batubetumpang Indonesia  0.1
          09 Dec 2020 22:00 Banraas Indonesia  0.1
          10 Dec 2020 05:00 Bandjargondol Indonesia  0.1
          10 Dec 2020 05:00 Gerokgak Indonesia  0.1
          10 Dec 2020 05:00 Bubunan Indonesia  0.1
          10 Dec 2020 05:00 Banjar Indonesia  0.1
          10 Dec 2020 05:00 Temoekoes Indonesia  0.1
          10 Dec 2020 05:00 Pandji Indonesia  0.1
          10 Dec 2020 05:00 Singaradja Indonesia  0.1
          10 Dec 2020 05:00 Soekasade Indonesia  0.1
          10 Dec 2020 05:00 Buleleng Indonesia  0.1
          10 Dec 2020 05:00 Boengkoelan Indonesia  0.1
          10 Dec 2020 05:00 Kubutambahan Indonesia  0.1
          10 Dec 2020 05:00 Djoelah Indonesia  0.1
          10 Dec 2020 05:00 Gretek Indonesia  0.1
          10 Dec 2020 05:00 Lembongan Indonesia  0.1
          10 Dec 2020 05:00 Tojapakeh Indonesia  0.1
          10 Dec 2020 05:00 Tianjar Indonesia  0.1
          10 Dec 2020 05:00 Kubu Indonesia  0.1
          10 Dec 2020 05:00 Tjulik Indonesia  0.1
          10 Dec 2020 05:00 Karangasem Indonesia  0.1
          10 Dec 2020 05:00 Mangsit Indonesia  0.1
          10 Dec 2020 05:00 Lembar Indonesia  0.1
          10 Dec 2020 05:00 Tandjoengkarang Indonesia  0.1
          10 Dec 2020 05:00 Geroeng Indonesia  0.1
          10 Dec 2020 05:00 Pamenang Indonesia  0.1
          10 Dec 2020 05:00 Tandjung Indonesia  0.1
          10 Dec 2020 05:00 Soeroengdjoekoeng Indonesia  0.1
          10 Dec 2020 05:00 Salangan Indonesia  0.1
          10 Dec 2020 06:00 Desa Anjar Indonesia  0.1
          10 Dec 2020 06:00 Bayan Indonesia  0.1
          10 Dec 2020 06:00 Lepeloang Indonesia  0.1
          10 Dec 2020 06:00 Sembelie Indonesia  0.1
          10 Dec 2020 06:00 Soengian Indonesia  0.1
          10 Dec 2020 06:00 Pernang Indonesia  0.1
          10 Dec 2020 06:00 Utan Indonesia  0.1
          10 Dec 2020 10:00 Tjadia Indonesia  0.1
          10 Dec 2020 10:00 Kanaoengan Indonesia  0.1
          10 Dec 2020 10:00 Bontobonto Indonesia  0.1
          11 Dec 2020 20:00 Agatebi Indonesia  0.1
          11 Dec 2020 20:00 Sakaoeni Indonesia  0.1
          11 Dec 2020 21:00 Sajengga Indonesia  0.1