Overall Green alert Tropical Cyclone for FOUR-17
in India
08 Dec 2017 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-17 can have a low 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 74 km/h
    Maximum storm surge n.a.
    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 n.a. n.a. 1.5
    Overall 74 km/h 0.0 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 10.6 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 08 Dec 2017 18:00 65 10.6 million No people India, Bangladesh

        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 08 Dec 2017 18:00 Tropical storm 74 no people 53000 people 18.3, 86.8 India
          GREEN
          		 1 09 Dec 2017 06:00 Tropical storm 74 no people 66000 people 19.8, 87.1 India
          ORANGE
          		 1 09 Dec 2017 18:00 Tropical storm 65 no people 10.5 million people 21.2, 87.7 Bangladesh
          GREEN
          		 1 10 Dec 2017 06:00 Tropical depression 56 no people no people 22.6, 88.9 Bangladesh
          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 Population in Tropical Storm or higher strength
          India 9.4 million people
          Bangladesh 1.2 million people

          Provinces

          Region Province Country
          Orissa India
          West Bengal India
          Khulna Bangladesh

          Populated places

          Name Region Province Country City class Population
          Rajpur West Bengal India City 340000 people
          Basirhat West Bengal India City 110000 people
          Satkhira Khulna Bangladesh City 100000 people

          Critical infrastructure

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

          Ports

          Name LOCODE Country
          Paradip INPRT India
          Haldia INHAL India
          Port Canning India
          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

          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.