Overall Green alert Tropical Cyclone for HELENE-18
in Portugal, Ireland, United Kingdom
07 Sep 2018 21 UTC
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  • GDACS NOAA
Impact Single TC
  • GFS
  • HWRF
  • ECMWF
Impact based on all weather systems in the area

Impact

    Tropical Cyclone HELENE-18 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries Portugal, Ireland, United Kingdom
    Exposed population No people in Category 1 or higher
    Maximum wind speed 185 km/h
    Maximum storm surge
    Vulnerability Low (Portugal)

    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 130 km/h 0.0 m n.a. 0.5
    Overall 185 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

      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 07 Sep 2018 15:00 111 200 thousand No people Cape Verde
        Green 2 07 Sep 2018 21:00 130 350 thousand No people Cape Verde

        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 07 Sep 2018 15:00 Tropical depression 56 no people no people 13.1, -17.8
          GREEN
          		 2 07 Sep 2018 21:00 Tropical depression 56 no people no people 13.2, -18.6
          GREEN
          		 2 08 Sep 2018 06:00 Tropical storm 65 no people no people 13.5, -19.9
          GREEN
          		 2 08 Sep 2018 18:00 Tropical storm 83 no people 350000 people 13.9, -21.9 Cape Verde
          GREEN
          		 2 09 Sep 2018 06:00 Tropical storm 102 no people 320000 people 14.4, -24.5 Cape Verde
          GREEN
          		 2 09 Sep 2018 18:00 Tropical storm 111 no people no people 14.9, -27.5
          GREEN
          		 2 10 Sep 2018 18:00 Category 1 130 no people no people 16.5, -33.5
          GREEN
          		 2 11 Sep 2018 18:00 Category 1 120 no people no people 18, -38.5
          GREEN
          		 2 12 Sep 2018 18:00 Tropical storm 111 no people no people 20.5, -42
          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

          Critical infrastructure

          Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

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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 m

          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 (0 locations). Calculation based on advisory number 2 of 07 Sep 2018 21:00:00 UTC. (Simulation using 6 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)