Overall Green alert Tropical Cyclone for NEIL-19
in Tonga
09 Feb 2019 18 UTC
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  • GDACS JTWC
Impact Single TC
  • GFS
  • HWRF
  • ECMWF
Impact based on all weather systems in the area

Impact

    Tropical Cyclone NEIL-19 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries Tonga
    Exposed population No people in Category 1 or higher
    Maximum wind speed 65 km/h
    Maximum storm surge 0.2 m (09 Feb 19:00 UTC)
    Vulnerability Medium (Tonga)

    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 65 km/h 0.2 m n.a. 0.5
    Overall 65 km/h 0.2 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

      65 km/h Current Max.

      Up to 110000 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 09 Feb 2019 18:00 65 110 thousand No people Tonga

        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 09 Feb 2019 18:00 Tropical storm 65 no people 5200 people -20.9, -174.9
          GREEN
          		 1 10 Feb 2019 06:00 Tropical storm 65 no people no people -24.5, -173.6
          GREEN
          		 1 10 Feb 2019 18:00 Tropical storm 65 no people no people -28.8, -171.6
          GREEN
          		 1 11 Feb 2019 06:00 Tropical depression 56 no people no people -33.8, -169.5
          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
          Tonga

          Provinces

          Region Province Country
          Tonga Tonga

          Populated places

          Name Region Province Country City class Population
          Nuku'alofa Tonga Capital 24000 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)
          Fua'amotu International TBU 38 Civ. Paved Yes 8700
          Eua Kaufana EUA unknown 0
          Haapai HPA 12 Civ. Unpaved Yes 3900
          Vavau International VAV 72 Civ. Unpaved Yes 5500

          Ports

          Name LOCODE Country
          Nuku'alofa TOTBU Tonga
          Eua Island Tonga
          Pangai TOPAN Tonga
          Ata Island Tonga
          Neiafu TONEI Tonga
          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

          0.2 m

          The maximum Storm surge height is  0.2m in Ohonua, Tonga. This height is estimated for 09 Feb 2019 19:00 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 (11 locations). Calculation based on advisory number 1 of 09 Feb 2019 18:00:00 UTC. (Simulation using 6 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          09 Feb 2019 19:00 Ohonua Tonga  0.2
          09 Feb 2019 20:00 Kolonga Tonga  0.2
          09 Feb 2019 20:00 Niutoua Tonga  0.2
          09 Feb 2019 20:00 Fuaamotu Tonga  0.1
          09 Feb 2019 20:00 Mua Tonga  0.1
          09 Feb 2019 20:00 Fatumu Tonga  0.1
          09 Feb 2019 20:00 Nukunuku Tonga  0.1
          09 Feb 2019 20:00 Houma Tonga  0.1
          09 Feb 2019 20:00 Pea Tonga  0.1
          09 Feb 2019 20:00 Nuku'alofa Tonga  0.1
          09 Feb 2019 20:00 Foui Tonga  0.1