Overall Green Tropical Cyclone for TWENTYEIGHT-26
in New Caledonia
24 Mar 2026 00 UTC
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  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone TWENTYEIGHT-26 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries New Caledonia
    Exposed population No people in Category 1 or higher
    Maximum wind speed 83 km/h
    Maximum storm surge n.a.
    Vulnerability Medium (New Caledonia)

    GDACS Score

    GDACS score for Tropical Cyclones is 0.5 (GREEN Level), 1.5 (ORANGE Level), 2.5 (RED Level)
    For more info on GDACS core click here.
      Wind Storm surge Rainfall GDACS score
    Current 83 km/h n.a. n.a. 0.5
    Overall 83 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

      83 km/h Current Max.

      Up to 15000 people in Tropical Storm strength or higher (see SSHS)

      Impact Timeline

        Level N° Date (UTC) Max Winds (km/h) Population in
        Tropical Storm or higher        		 Population in
        Cat 1. or higher        		 Countries
        Green 1 23 Mar 2026 00:00 83 280 thousand No people New Caledonia, Norfolk Island
        Green 2 23 Mar 2026 12:00 93 30 thousand No people New Caledonia
        Green 3 24 Mar 2026 00:00 83 10 thousand No people New Caledonia

        Bulletin Timeline

          Level 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 23 Mar 2026 00:00 Tropical storm 65 no people 37000 people -17.2, 162.5
          GREEN
          		 2 23 Mar 2026 12:00 Tropical storm 83 no people 28000 people -20.1, 162.9
          GREEN
          		 3 24 Mar 2026 00:00 Tropical storm 83 no people no people -23.6, 163.8
          GREEN
          		 3 24 Mar 2026 12:00 Tropical storm 83 no people no people -28, 164
          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 Population in Tropical Storm or higher strength
          New Caledonia 12000 people

          Provinces

          Region Province Country Population in Tropical Storm or higher strength
          New Caledonia New Caledonia 12000 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)
          Koumac KOC 13 Civ. Paved No 3600
          Poum PUV unknown 0
          Belep BMY unknown 0

          Ports

          Name LOCODE Country
          Babouillat New Caledonia
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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.