Overall Orange alert Tropical Cyclone for FOUR-18
in India
20 Sep 2018 18 UTC
click on to select bulletin time
  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

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

    Meteorological source GDACS
    Exposed countries India
    Exposed population No people in Category 1 or higher
    Maximum wind speed 65 km/h
    Maximum storm surge 0.3 m (20 Sep 19:00 UTC)
    Vulnerability High (India)

    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 0.3 m n.a. 1.5
    Overall 65 km/h 0.3 m n.a. 1.5

    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 14.1 million 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
        Orange 1 20 Sep 2018 12:00 65 38 million No people India
        Orange 2 20 Sep 2018 18:00 65 14.1 million No people India

        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
          ORANGE
          		 1 20 Sep 2018 12:00 Tropical storm 65 no people 17.9 million people 18.1, 86.3 India
          ORANGE
          		 2 20 Sep 2018 18:00 Tropical storm 65 no people 14.1 million people 19.2, 85.4 India
          GREEN
          		 2 21 Sep 2018 06:00 Tropical depression 56 no people no people 20.6, 82.8 India
          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
          India

          Provinces

          Region Province Country
          Orissa India
          Andhra Pradesh India
          Madhya Pradesh India

          Populated places

          Name Region Province Country City class Population
          Chatrapur Orissa India City 21000 people
          Berhampur Orissa India City -
          Ichchapuram Andhra Pradesh India City 33000 people
          Puri Orissa India City 170000 people
          Mandasa Andhra Pradesh India City 9300 people
          Bhawanipatna Orissa India City 62000 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)
          Nuagaon 200 0
          Utkela 207 0
          Nawapara 322 0

          Ports

          Name LOCODE Country
          Gopalpore India
          Puri INPUR India
          Baruva India

          Dams

          Reservoir Dam Name River Year
          Salia Salia 1980
          Budhabudiani Budhabudiani 1967
          Upper Jonk Jonk n/a
          Sikasar Local Nalla 1977
          Sondur Local Nalla 1988
          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

          0.3 m

          The maximum Storm surge height is  0.3m in Malud, India. This height is estimated for 20 Sep 2018 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 (19 locations). Calculation based on advisory number 2 of 20 Sep 2018 18:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          20 Sep 2018 19:00 Malud India  0.3
          20 Sep 2018 19:00 Panasapada India  0.2
          20 Sep 2018 16:00 Bideipur India  0.2
          20 Sep 2018 16:00 Chandipur India  0.2
          20 Sep 2018 19:00 Canjam India  0.2
          20 Sep 2018 19:00 Puri India  0.2
          20 Sep 2018 15:00 Rasalpur India  0.2
          20 Sep 2018 20:00 Paluru India  0.2
          20 Sep 2018 20:00 Chatrapur India  0.2
          20 Sep 2018 19:00 Balighai India  0.1
          20 Sep 2018 13:00 Hukitala India  0.1
          20 Sep 2018 18:00 Bijavbati India  0.1
          20 Sep 2018 20:00 Gopalpur India  0.1
          20 Sep 2018 18:00 Konarak India  0.1
          20 Sep 2018 17:00 Nuliasahi India  0.1
          20 Sep 2018 14:00 Satabhaya India  0.1
          20 Sep 2018 16:00 Sibsa Point Bangladesh  0.1
          20 Sep 2018 17:00 Nuagan India  0.1
          20 Sep 2018 20:00 Nuralrevu India  0.1