Overall Green alert Tropical Cyclone for MANGGA-20
in Australia, Cocos (Keeling) Islands
21 May 2020 12 UTC
click on to select bulletin time
  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone MANGGA-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries Australia, Cocos (Keeling) Islands
    Exposed population No people in Category 1 or higher
    Maximum wind speed 74 km/h
    Maximum storm surge n.a.
    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
    Current 93 km/h n.a. n.a. 0.5
    Overall 74 km/h 0.0 m n.a. 0.5

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

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    Wind

      93 km/h Current Max.

      Up to 2.3 million 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 2 21 May 2020 06:00 102 2.3 million No people Australia
        Green 3 21 May 2020 12:00 93 2.3 million No people Cocos (Keeling) Islands, 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
          		 2 21 May 2020 06:00 Tropical storm 65 no people no people -9.1, 92.2
          GREEN
          		 3 21 May 2020 12:00 Tropical storm 65 no people no people -9.3, 92.5
          GREEN
          		 3 22 May 2020 00:00 Tropical storm 74 no people <1000 people -11, 93.5 Cocos (Keeling) Islands
          GREEN
          		 3 22 May 2020 12:00 Tropical storm 83 no people <1000 people -13.2, 95.2 Cocos (Keeling) Islands
          GREEN
          		 3 23 May 2020 00:00 Tropical storm 93 no people no people -15.8, 97.9
          GREEN
          		 3 23 May 2020 12:00 Tropical storm 93 no people 56000 people -19.1, 102 Australia
          GREEN
          		 3 24 May 2020 12:00 Tropical storm 74 no people 2.3 million people -26.5, 112 Australia
          GREEN
          		 3 25 May 2020 12:00 Tropical storm 65 no people no people -32.8, 119.7 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
          Cocos Is.
          Australia

          Provinces

          Region Province Country
          Cocos Is. Cocos (Keeling) Islands
          Western Australia Australia

          Populated places

          Name Region Province Country City class Population
          West Island Cocos (Keeling) Islands Capital <1000 people
          Geraldton Western Australia Australia City 27000 people
          Perth Western Australia Australia Major city 1.4 million people
          Rockingham Western Australia Australia City -
          Medina Western Australia Australia City -
          Warnbro Western Australia Australia City -
          Armadale Western Australia Australia City -
          Peelhurst Western Australia Australia City -
          Singleton Western Australia Australia City -
          Byford Western Australia Australia City -
          Falcon Western Australia Australia City -
          Mandurah Western Australia Australia City 73000 people
          Northam Western Australia Australia City 5800 people
          Pinjarra Western Australia Australia City -
          York Western Australia Australia City -
          Dwellingup Western Australia Australia City -
          Waroona Western Australia Australia City -
          Harvey Western Australia Australia City -
          Bunbury Western Australia Australia City 26000 people
          Beverly Western Australia Australia City -
          Eaton Western Australia Australia City -
          Busselton Western Australia Australia City 10000 people
          Capel Western Australia Australia City -
          Brookton Western Australia Australia City -
          Collie Western Australia Australia City 6300 people
          Pingelly Western Australia Australia City -
          Augusta Western Australia Australia City -
          Narrogin Western Australia Australia City -
          Bridgetown Western Australia Australia City -
          Corrigin Western Australia Australia City -
          Manjimup Western Australia Australia City -
          Wagin Western Australia Australia City -
          Kojonup Western Australia Australia City -
          Katanning Western Australia Australia City -
          Mount Barker Western Australia Australia City -
          Kalgoorlie Western Australia Australia City -
          Albany Western Australia Australia City 24000 people
          Norseman 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)
          Cocos Is CCK 3 Civ. Paved Yes 7900
          Carnarvon CVQ 4 Civ. Paved Yes 5500
          Useless Loop USL unknown 0
          Shark Bay MJK 34 Priv. Paved No 5500
          Gascoyne Junction GSC unknown 0
          Kalbarri KAX unknown 0
          Geraldton GET 37 Civ. Paved Yes 6400
          Mullewa MXU unknown 0
          Dongara DOX unknown 0
          Eneabba ENB unknown 0
          Yalgoo YLG unknown 0
          Jurien Bay JUR unknown 0
          Morawa MWB 270 Civ. Unpaved Yes 3000
          Big Bell BBE unknown 0
          Cue CUY 442 Civ. Unpaved No 6400
          Meekatharra MKR 522 Civ. Paved Yes 7100
          Mount Magnet MMG 411 Civ. Unpaved Yes 5000
          Gingin 73 Civ. Paved No 5900
          Rottnest Island RTS 4 Civ. Paved Yes 4200
          Pearce 45 Civ. Paved Yes 8000
          Fremantle Heliport JFM unknown 0
          Sandstone NDS unknown 0
          Perth International PER 20 Civ. Paved Yes 11200
          Perth Jandakot JAD 30 Civ. Paved Yes 4500
          Yeelirrie KYF unknown 0
          Murray Field 17 0
          Cunderdin 213 Civ. Paved Yes 6000
          Bunbury BUY 16 Civ. Paved Yes 3300
          Margaret River 105 Civ. Paved Yes 3600
          Busselton 17 Civ. Paved Yes 5900
          Leinster LER 495 Civ. Unpaved Yes 5900
          Collie CIE unknown 0
          Narrogin NRG unknown 0
          Manjimup MJP 286 Civ. Paved Yes 4000
          Southern Cross SQC 354 Civ. Unpaved Yes 3000
          Leonora LNO 370 Civ. Unpaved Yes 5200
          Katanning KNI 284 0
          Murrin Murrin 466 Priv. Paved Yes 6500
          Kalgoorlie KGI 360 Civ. Paved Yes 6500
          Albany ALH 71 Civ. Paved Yes 5900
          Kambalda KDB unknown 0
          Norseman NSM 263 Civ. Unpaved Yes 3000
          Esperance EPR 143 Civ. Paved Yes 4900

          Ports

          Name LOCODE Country
          Maud Landing Coral Sea Islands
          Cape Cuvier Coral Sea Islands
          Carnarvon AUCVQ Coral Sea Islands
          Denham Coral Sea Islands
          Useless Loop AUUSL Coral Sea Islands
          Hamelin Pool Coral Sea Islands
          Bluff Point Coral Sea Islands
          Port Gregory Coral Sea Islands
          Geraldton AUGET Coral Sea Islands
          Dongarra Coral Sea Islands
          Rottnest Island AURTS Coral Sea Islands
          Fremantle AUFRE Coral Sea Islands
          Kwinana AUKWI Coral Sea Islands
          Cape Naturaliste Coral Sea Islands
          Bunbury AUBUY Coral Sea Islands
          Busselton AUBUS Coral Sea Islands
          Augusta Coral Sea Islands
          Cape Leeuwin AUCLN Coral Sea Islands
          Denmark Coral Sea Islands
          Albany AUALH Coral Sea Islands
          Mary Ann Haven Coral Sea Islands
          Esperance AUEPR Coral Sea Islands
          Cape Pasley Coral Sea Islands
          Rocky Point Coral Sea Islands

          Dams

          Reservoir Dam Name River Year
          Victoria Reservoir New Victoria Munday Brook 1991
          Mundaring Weir Helena 1959
          Wungong Reservoir Wungong Wungong Brook 1979
          Canning Reservoir Canning Canning 1940
          Serpentine Reservoir Serpentine Serpentine 1961
          Banksiadale South Dandalup South Dandalup 1974
          Navarino Waroona Drakes Brook 1966
          Brockman Logue Brook Logue Brook 1963
          Stirling Reservoir Stirling Harvey 1948
          Worsley Pipehead 1983
          Wellington Reservoir Wellington Collie 1960
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          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.

          ...

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          StormSurge

          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.