Overall Green alert Tropical Cyclone for ELLA-17
in Wallis and Futuna
11 May 2017 00 UTC
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  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone ELLA-17 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries Wallis and Futuna
    Exposed population No people in Category 1 or higher
    Maximum wind speed 139 km/h
    Maximum storm surge 0.2 m (11 May 16:00 UTC)
    Vulnerability -- (Wallis & Futuna)

    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 111 km/h 0.2 m n.a. 0.5
    Overall 139 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

      111 km/h Current Max.

      Up to 41000 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 May 2017 00:00 74 90 thousand No people Wallis and Futuna, Fiji
        Green 2 09 May 2017 12:00 93 110 thousand No people Fiji
        Green 3 10 May 2017 00:00 93 150 thousand No people Wallis and Futuna, Fiji
        Green 4 10 May 2017 12:00 93 140 thousand No people Wallis and Futuna, Fiji
        Green 5 11 May 2017 00:00 111 40 thousand No people Wallis and Futuna, Fiji

        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 May 2017 00:00 Tropical storm 65 no people no people -15.3, -172.9
          GREEN
          		 2 09 May 2017 12:00 Tropical storm 83 no people no people -14.9, -173.2
          GREEN
          		 3 10 May 2017 00:00 Tropical storm 83 no people 1300 people -14.8, -174.4
          GREEN
          		 4 10 May 2017 12:00 Tropical storm 93 no people 16000 people -14.3, -176.4 Wallis and Futuna
          GREEN
          		 5 11 May 2017 00:00 Tropical storm 102 no people 16000 people -14.3, -176.8 Wallis and Futuna
          GREEN
          		 5 11 May 2017 12:00 Tropical storm 111 no people 2600 people -14.6, -177.6 Wallis and Futuna
          GREEN
          		 5 12 May 2017 00:00 Tropical storm 111 no people 5300 people -14.9, -178.5 Fiji
          GREEN
          		 5 12 May 2017 12:00 Tropical storm 102 no people 23000 people -15.2, -179.4 Fiji
          GREEN
          		 5 13 May 2017 00:00 Tropical storm 83 no people 24000 people -15.3, -179.9 Fiji
          GREEN
          		 5 14 May 2017 00:00 Tropical depression 56 no people no people -15, 178.3
          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
          Wallis & Futuna
          Fiji

          Provinces

          Region Province Country
          Wallis & Futuna Wallis and Futuna
          Fiji Fiji

          Populated places

          Name Region Province Country City class Population
          Mata-Utu Wallis and Futuna Capital 970000 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)
          Wallis Island WLS 24 Civ. Paved Yes 6500

          Ports

          Name LOCODE Country
          Mata Utu Wallis and Futuna
          Ile Futuna Wallis and Futuna
          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.

          ...

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          StormSurge

          0.2 m

          The maximum Storm surge height is  0.2m in Mua, Wallis and Futuna. This height is estimated for 11 May 2017 16:00 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 (3 locations). Calculation based on advisory number 5 of 11 May 2017 00:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          11 May 2017 16:00 Mua Wallis and Futuna  0.2
          11 May 2017 18:00 Alo Wallis and Futuna  0.2
          11 May 2017 17:00 Leava Wallis and Futuna  0.1