Overall Green alert Tropical Cyclone for SEBASTIEN-19
in Portugal, Ireland, United Kingdom,
20 Nov 2019 09 UTC
click on to select bulletin time
  • GDACS NOAA
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone SEBASTIEN-19 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 130 km/h
    Maximum storm surge 0.1 m (21 Nov 01:00 UTC)
    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 102 km/h 0.1 m n.a. 0.5
    Overall 130 km/h 0.1 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

      102 km/h Current Max.

      Up to no 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 19 Nov 2019 15:00 83 No people No people
        Green 2 19 Nov 2019 21:00 102 No people No people
        Green 3 20 Nov 2019 03:00 102 No people No people
        Green 4 20 Nov 2019 09:00 102 No people No people

        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 19 Nov 2019 15:00 Tropical storm 74 no people no people 20.1, -58.7
          GREEN
          		 2 19 Nov 2019 21:00 Tropical storm 74 no people no people 20.6, -59.7
          GREEN
          		 3 20 Nov 2019 03:00 Tropical storm 74 no people no people 20.7, -60.6
          GREEN
          		 4 20 Nov 2019 09:00 Tropical storm 83 no people no people 21, -61
          GREEN
          		 4 20 Nov 2019 18:00 Tropical storm 83 no people no people 21.7, -61.5
          GREEN
          		 4 21 Nov 2019 06:00 Tropical storm 93 no people no people 23.2, -60.8
          GREEN
          		 4 21 Nov 2019 18:00 Tropical storm 102 no people no people 25.3, -58.6
          GREEN
          		 4 22 Nov 2019 06:00 Tropical storm 102 no people no people 28.7, -54.4
          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

          0.1 m

          The maximum Storm surge height is  0.1m in Spanish Town, British Virgin Islands. This height is estimated for 21 Nov 2019 01:00 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 (25 locations). Calculation based on advisory number 4 of 20 Nov 2019 09:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          21 Nov 2019 01:00 Spanish Town British Virgin Islands  0.1
          21 Nov 2019 01:00 The Settlement British Virgin Islands  0.1
          21 Nov 2019 00:00 Annaberg Virgin Islands  0.1
          21 Nov 2019 00:00 Bordeaux Virgin Islands  0.1
          21 Nov 2019 00:00 Hermitage Virgin Islands  0.1
          21 Nov 2019 00:00 East End Virgin Islands  0.1
          20 Nov 2019 03:00 Codrington Antigua and Barbuda  0.1
          21 Nov 2019 00:00 Adelphi Virgin Islands  0.1
          21 Nov 2019 00:00 Neltjeberg Virgin Islands  0.1
          21 Nov 2019 00:00 Cabritaberg Virgin Islands  0.1
          21 Nov 2019 00:00 Barrett Virgin Islands  0.1
          21 Nov 2019 00:00 Charlotte Amalie Virgin Islands  0.1
          21 Nov 2019 00:00 Enighed Virgin Islands  0.1
          21 Nov 2019 00:00 Bellevue Virgin Islands  0.1
          21 Nov 2019 00:00 Mandal Virgin Islands  0.1
          21 Nov 2019 00:00 Bolongo Virgin Islands  0.1
          21 Nov 2019 00:00 Donoe Virgin Islands  0.1
          21 Nov 2019 00:00 Benner Virgin Islands  0.1
          21 Nov 2019 00:00 Contant Virgin Islands  0.1
          21 Nov 2019 00:00 Adrian Virgin Islands  0.1
          21 Nov 2019 00:00 Fish Bay Virgin Islands  0.1
          21 Nov 2019 00:00 Belle Vue British Virgin Islands  0.1
          21 Nov 2019 00:00 Calabash Boom Virgin Islands  0.1
          21 Nov 2019 00:00 Road Town British Virgin Islands  0.1
          21 Nov 2019 00:00 Pacham Town British Virgin Islands  0.1