Overall Green alert Tropical Cyclone for EIGHTEEN-21
in Australia
01 Feb 2021 06 UTC
click on to select bulletin time
  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone EIGHTEEN-21 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 65 km/h
    Maximum storm surge 0.7 m (02 Feb 21:00 UTC)
    Vulnerability Low (Australia)
    Landfall between
    31 Jan 2021 12:00 - 31 Jan 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 93 km/h 0.7 m n.a. 0.5
    Overall 65 km/h 0.7 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 11000 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 31 Jan 2021 12:00 93 Few people No people Australia
        Green 2 31 Jan 2021 18:00 93 Few people No people Australia
        Green 3 01 Feb 2021 00:00 93 4 thousand No people Australia
        Green 4 01 Feb 2021 06:00 93 10 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 31 Jan 2021 12:00 Tropical depression 56 no people no people -21.4, 121.1
          GREEN
          		 2 31 Jan 2021 18:00 Tropical depression 56 no people no people -21.3, 119.8 Australia
          GREEN
          		 3 01 Feb 2021 00:00 Tropical depression 56 no people no people -20.6, 119 Australia
          GREEN
          		 4 01 Feb 2021 06:00 Tropical depression 56 no people no people -20.6, 119 Australia
          GREEN
          		 4 01 Feb 2021 18:00 Tropical depression 56 no people no people -21, 116.9 Australia
          GREEN
          		 4 02 Feb 2021 06:00 Tropical depression 56 no people 4000 people -21.6, 115.2 Australia
          GREEN
          		 4 02 Feb 2021 18:00 Tropical storm 65 no people 4200 people -22.1, 114.2 Australia
          GREEN
          		 4 03 Feb 2021 06:00 Tropical storm 74 no people <1000 people -22.4, 113
          GREEN
          		 4 04 Feb 2021 06:00 Tropical storm 83 no people no people -22.2, 111.3
          GREEN
          		 4 05 Feb 2021 06:00 Tropical storm 93 no people 6400 people -23.6, 110.7
          GREEN
          		 4 06 Feb 2021 06:00 Tropical storm 93 no people no people -25.3, 111.2
          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
          Exmouth 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)
          Onslow ONS 7 Civ. Unpaved Yes 4400
          Learmonth LEA 6 Mil. Paved Yes 9900
          Exmouth Gulf EXM unknown 0
          Carnarvon CVQ 4 Civ. Paved Yes 5500
          Shark Bay MJK 34 Priv. Paved No 5500
          Useless Loop USL unknown 0

          Ports

          Name LOCODE Country
          Onslow Coral Sea Islands
          Griffin Venture AUGRV Coral Sea Islands
          Port Exmouth Coral Sea Islands
          Exmouth AUPEX Coral Sea Islands
          Learmonth Coral Sea Islands
          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
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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

          0.7 m

          The maximum Storm surge height is  0.7m in Learmonth, Australia. This height is estimated for 02 Feb 2021 21:00 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 (31 locations). Calculation based on advisory number 4 of 01 Feb 2021 06:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          02 Feb 2021 21:00 Learmonth Australia  0.7
          04 Feb 2021 07:00 Mardie Australia  0.5
          03 Feb 2021 12:00 Wickham Australia  0.5
          03 Feb 2021 12:00 Point Samson Australia  0.5
          03 Feb 2021 12:00 Cossack Australia  0.5
          02 Feb 2021 12:00 Glenroy Australia  0.4
          03 Feb 2021 13:00 East Lewis I Australia  0.4
          02 Feb 2021 22:00 Exmouth Australia  0.3
          02 Feb 2021 21:00 Condon Australia  0.3
          05 Feb 2021 06:00 Denham Australia  0.3
          03 Feb 2021 02:00 Derby Australia  0.3
          05 Feb 2021 06:00 Useless Loop Australia  0.3
          05 Feb 2021 06:00 Dirk Hartog Australia  0.3
          04 Feb 2021 06:00 Ah Chong I Australia  0.2
          03 Feb 2021 08:00 Thangoo Australia  0.2
          03 Feb 2021 08:00 Broome Australia  0.2
          05 Feb 2021 06:00 Carrarang Australia  0.2
          05 Feb 2021 06:00 Tamala Australia  0.2
          05 Feb 2021 06:00 Shark Bay Australia  0.2
          03 Feb 2021 08:00 Waterbank Australia  0.2
          03 Feb 2021 08:00 Kennedys Cottage Australia  0.2
          05 Feb 2021 06:00 Carnarvon Australia  0.1
          05 Feb 2021 05:00 Quobba Australia  0.1
          02 Feb 2021 23:00 Bundera Bundera Australia  0.1
          05 Feb 2021 05:00 Cape Cuvier Australia  0.1
          05 Feb 2021 06:00 Nanga Australia  0.1
          03 Feb 2021 01:00 Ningaloo Australia  0.1
          03 Feb 2021 00:00 Pender Australia  0.1
          05 Feb 2021 00:00 Cardabia Australia  0.1
          02 Feb 2021 23:00 Kollan I Australia  0.1
          04 Feb 2021 23:00 Gnaraloo Australia  0.1