Overall Orange alert Tropical Cyclone for OCKHI-17
in India, Maldives, Sri Lanka
01 Dec 2017 06 UTC
click on to select bulletin time
  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

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

    Meteorological source GDACS
    Glide number: TC-2017-000172-IND
    Exposed countries India, Maldives, Sri Lanka
    Exposed population No people in Category 1 or higher
    Maximum wind speed 176 km/h
    Maximum storm surge 0.4 m (30 Nov 07:00 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 111 km/h 0.3 m n.a. 1.5
    Overall 176 km/h 0.4 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

      111 km/h Current Max.

      Up to 37.5 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 29 Nov 2017 18:00 102 25.3 million 2 thousand Sri Lanka, India
        Orange 2 30 Nov 2017 00:00 93 23.3 million 2 thousand India, Sri Lanka
        Green 3 30 Nov 2017 06:00 139 16.9 million 2 thousand India, Sri Lanka
        Orange 4 30 Nov 2017 12:00 130 26.7 million 270 thousand India
        Orange 5 30 Nov 2017 18:00 130 28.9 million 580 thousand India
        Orange 6 01 Dec 2017 00:00 130 86 million 40 thousand India
        Orange 7 01 Dec 2017 06:00 111 37.5 million 1 thousand India, Sri Lanka

        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 29 Nov 2017 18:00 Tropical storm 65 no people 14.1 million people 6.6, 78.8 India
          ORANGE
          		 2 30 Nov 2017 00:00 Tropical storm 74 no people 17.6 million people 7.5, 77.3 India
          GREEN
          		 3 30 Nov 2017 06:00 Tropical storm 93 no people 9.8 million people 7.8, 76.6 India
          ORANGE
          		 4 30 Nov 2017 12:00 Tropical storm 102 no people 11.5 million people 8.4, 75.6 India
          GREEN
          		 5 30 Nov 2017 18:00 Tropical storm 111 no people 60000 people 8.5, 74.7 India
          GREEN
          		 6 01 Dec 2017 00:00 Tropical storm 111 no people 70000 people 8.7, 74.2 India
          GREEN
          		 7 01 Dec 2017 06:00 Category 1 130 1200 people 58000 people 8.8, 73.5 India
          GREEN
          		 7 01 Dec 2017 18:00 Category 1 148 1200 people 60000 people 9.7, 72.1 India
          GREEN
          		 7 02 Dec 2017 06:00 Category 2 157 no people 19000 people 10.5, 70.8 India
          GREEN
          		 7 02 Dec 2017 18:00 Category 2 157 no people no people 11.8, 69.6
          GREEN
          		 7 03 Dec 2017 06:00 Category 2 167 no people no people 13.2, 69
          GREEN
          		 7 04 Dec 2017 06:00 Category 2 167 no people no people 16, 69.4
          ORANGE
          		 7 05 Dec 2017 06:00 Tropical storm 111 no people 16.5 million people 18.9, 71 India
          GREEN
          		 7 06 Dec 2017 06:00 Tropical storm 65 no people no people 21.8, 72.7 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
          Sri Lanka

          Provinces

          Region Province Country
          Lakshadweep India
          Kerala India
          Tamil Nadu India
          North Western Sri Lanka
          Western Sri Lanka
          Maharashtra India
          Southern Sri Lanka
          Gujarat India
          Daman & Diu India

          Populated places

          Name Region Province Country City class Population
          Alleppey Kerala India City -
          Mattancheri Kerala India City -
          Quilon Kerala India City -
          Kottayam Kerala India City 59000 people
          Trivandrum Kerala India City -
          Tenkasi Tamil Nadu India City 63000 people
          Kallidaikurichchi Tamil Nadu India City 25000 people
          Nagercoil Tamil Nadu India City 210000 people
          Tiruneveli Tamil Nadu India City -
          Mel Palaiyam Tamil Nadu India City -
          Palayankottai Tamil Nadu India City -
          Srivaikuntam Tamil Nadu India City 16000 people
          Tiruchchendur Tamil Nadu India City 30000 people
          Negombo Western Sri Lanka City 140000 people
          Colombo Western Sri Lanka Capital 610000 people
          Wattala Western Sri Lanka City 30000 people
          Ragama Western Sri Lanka City 27000 people
          Moratuwa Western Sri Lanka City 180000 people
          Kotte Western Sri Lanka City 120000 people
          Gampaha Western Sri Lanka City 9300 people
          Panadura Western Sri Lanka City -
          Wadduwa Western Sri Lanka City -
          Kalutara Western Sri Lanka City 38000 people
          Valsad Gujarat India City 70000 people
          Navsari Gujarat India City 130000 people
          Mahuva Gujarat India City 73000 people
          Surat Gujarat India City 2 million people
          Bharuch Gujarat India City 150000 people
          Bhavnagar Gujarat India City 510000 people
          Vadodara Gujarat India City 1.4 million people
          Khambhat Gujarat India City 81000 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)
          Agatti AGX 4 Civ. Paved No 3900
          Thiruvananthapuram International TRV 5 Civ. Paved Yes 11100
          Colombo Bandaranayake International CMB 9 Civ. Paved Yes 10900
          Colombo Ratmalana RML 7 Civ. Paved Yes 6000
          Katukurunda 3 0
          Daman NMB 10 0
          Diu DIU 14 0
          Surat STV 15 0
          Bhavnagar BHU 10 Civ. Paved Yes 6300

          Ports

          Name LOCODE Country
          Minicoy India
          Kalpeni Island India
          Kavaratti Island India
          Amini Island India
          Alleppey INALF India
          Needakara INNEE India
          Quilon INQUI India
          Trivandrum India
          Nemam India
          Kilachel India
          Nagercoil India
          Cape Comorin INCCN India
          Tiruchendir India
          Negombo Sri Lanka
          Colombo LKCMB Sri Lanka
          Moratuwa Sri Lanka
          Kalutara Sri Lanka
          Ambalangoda Sri Lanka
          Daman INDAM India
          Diu INDIU India
          Pipavav Bandar India
          Hazira India
          Surat INSTV India
          Baruch India
          Bhavnagar INBHU India
          Cambay INCAM India

          Dams

          Reservoir Dam Name River Year
          Kallada Kallada n/a
          Shetrunji Shetrunji 1965
          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

          0.4 m

          The maximum Storm surge height is  0.4m in Kattumavadi, India. This height is estimated for 30 Nov 2017 07:00 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 (152 locations). Calculation based on advisory number 7 of 01 Dec 2017 06:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          30 Nov 2017 07:00 Kattumavadi India  0.4
          30 Nov 2017 04:00 Panalkkulam India  0.4
          30 Nov 2017 04:00 Tondi India  0.4
          30 Nov 2017 02:00 Manamelkudi India  0.4
          30 Nov 2017 02:00 Ammapatam India  0.4
          30 Nov 2017 05:00 Kottaippattanam India  0.4
          29 Nov 2017 22:00 Kilakarai India  0.3
          29 Nov 2017 22:00 Muttupettai India  0.3
          30 Nov 2017 04:00 Irumeni India  0.3
          05 Dec 2017 06:00 Delvada India  0.3
          05 Dec 2017 06:00 Nawabandar India  0.3
          05 Dec 2017 06:00 Dharabandar India  0.3
          05 Dec 2017 06:00 Rohisa India  0.3
          05 Dec 2017 06:00 Jafarabad India  0.3
          05 Dec 2017 06:00 Mahuva India  0.3
          05 Dec 2017 06:00 Kathiwadar Bandar India  0.3
          30 Nov 2017 04:00 Rameswaram India  0.3
          05 Dec 2017 06:00 Kotra Nes India  0.2
          05 Dec 2017 06:00 Dangarvadi India  0.2
          30 Nov 2017 04:00 Pamban India  0.2
          05 Dec 2017 06:00 Kotada India  0.2
          05 Dec 2017 06:00 Dongri India  0.2
          05 Dec 2017 06:00 Malad India  0.2
          05 Dec 2017 06:00 Agashi India  0.2
          05 Dec 2017 06:00 Agar Panchaitan India  0.2
          05 Dec 2017 06:00 Lodhwa India  0.2
          05 Dec 2017 06:00 Veraval India  0.2
          05 Dec 2017 06:00 Somnath India  0.2
          05 Dec 2017 06:00 Mumbai India  0.2
          05 Dec 2017 06:00 Asumumbay India  0.2
          05 Dec 2017 06:00 Vasai India  0.2
          05 Dec 2017 06:00 Tarapur India  0.2
          05 Dec 2017 06:00 Palghar India  0.2
          05 Dec 2017 06:00 Mahim India  0.2
          05 Dec 2017 06:00 Nalasopara India  0.2
          05 Dec 2017 06:00 Trombay India  0.2
          05 Dec 2017 06:00 Kodinar India  0.2
          05 Dec 2017 06:00 Damka India  0.2
          05 Dec 2017 06:00 Maroli India  0.2
          30 Nov 2017 03:00 Agastiswaram India  0.2
          30 Nov 2017 03:00 Cape Comorin India  0.2
          30 Nov 2017 03:00 Erukkandurai India  0.2
          05 Dec 2017 05:00 Srivardhan India  0.2
          05 Dec 2017 03:00 Bankot India  0.2
          05 Dec 2017 03:00 Kelshi India  0.2
          05 Dec 2017 06:00 Murud India  0.2
          05 Dec 2017 06:00 Alibag India  0.2
          05 Dec 2017 06:00 Revadanda India  0.2
          05 Dec 2017 06:00 Sutrapada India  0.2
          05 Dec 2017 06:00 Uran India  0.2
          05 Dec 2017 06:00 Ghogha India  0.2
          05 Dec 2017 06:00 Dahej India  0.2
          05 Dec 2017 06:00 Shirgaon India  0.2
          05 Dec 2017 06:00 Bordi India  0.2
          05 Dec 2017 06:00 Olpad India  0.2
          05 Dec 2017 06:00 Boisar India  0.2
          05 Dec 2017 06:00 Umbargam India  0.2
          05 Dec 2017 06:00 Gholvad India  0.2
          05 Dec 2017 06:00 Surat India  0.2
          05 Dec 2017 06:00 Jalalpur India  0.2
          05 Dec 2017 06:00 Mahuver India  0.2
          05 Dec 2017 06:00 Asarsa India  0.2
          05 Dec 2017 06:00 Harinagar India  0.2
          05 Dec 2017 06:00 Bhagva India  0.2
          05 Dec 2017 06:00 Tankari India  0.2
          05 Dec 2017 06:00 Muler India  0.2
          05 Dec 2017 06:00 Malyan India  0.2
          05 Dec 2017 06:00 Daman India  0.2
          05 Dec 2017 06:00 Udvada India  0.2
          05 Dec 2017 06:00 Wadgam India  0.2
          30 Nov 2017 00:00 Kayalpatnam India  0.2
          30 Nov 2017 07:00 Sikkal India  0.2
          05 Dec 2017 06:00 Mandve India  0.2
          05 Dec 2017 06:00 Chorwad India  0.2
          05 Dec 2017 06:00 Mira Bhayandar India  0.2
          05 Dec 2017 06:00 Kambhat India  0.2
          05 Dec 2017 06:00 Kavi India  0.2
          05 Dec 2017 06:00 Sarod India  0.2
          05 Dec 2017 06:00 Navghar India  0.2
          04 Dec 2017 20:00 Guhagar India  0.2
          04 Dec 2017 20:00 Anjanwel India  0.2
          30 Nov 2017 07:00 Thoothukkudi India  0.2
          30 Nov 2017 07:00 Melmandai India  0.2
          30 Nov 2017 07:00 Vembar India  0.2
          04 Dec 2017 14:00 Adiura India  0.2
          05 Dec 2017 06:00 Shil India  0.2
          05 Dec 2017 06:00 Mangrol India  0.2
          05 Dec 2017 06:00 Ratia India  0.2
          05 Dec 2017 06:00 Lamba India  0.2
          05 Dec 2017 06:00 Miyani India  0.2
          30 Nov 2017 06:00 Kayts Sri Lanka  0.2
          30 Nov 2017 03:00 Vijayapati India  0.2
          04 Dec 2017 08:00 Marmagao India  0.2
          04 Dec 2017 08:00 Vasco Da Gama India  0.2
          04 Dec 2017 14:00 Devgarh India  0.2
          04 Dec 2017 14:00 Pural India  0.2
          04 Dec 2017 19:00 Jaigarh India  0.2
          04 Dec 2017 18:00 Mirya India  0.2
          04 Dec 2017 18:00 Ratnagiri India  0.2
          05 Dec 2017 06:00 Gorser India  0.2
          05 Dec 2017 06:00 Adodar India  0.2
          05 Dec 2017 06:00 Porbandar India  0.2
          30 Nov 2017 12:00 Quilon India  0.2
          30 Nov 2017 13:00 Vilinjam India  0.1
          30 Nov 2017 13:00 Thiruvananthapuram India  0.1
          04 Dec 2017 14:00 Achra India  0.1
          04 Dec 2017 20:00 Boria India  0.1
          04 Dec 2017 18:00 Purangad India  0.1
          04 Dec 2017 18:00 Purnagad India  0.1
          05 Dec 2017 06:00 Diva India  0.1
          30 Nov 2017 06:00 Delft Centre Sri Lanka  0.1
          30 Nov 2017 07:00 Kurichchikadu Sri Lanka  0.1
          30 Nov 2017 08:00 Kadiapattanam India  0.1
          04 Dec 2017 11:00 Anjuna India  0.1
          04 Dec 2017 08:00 Agacaim India  0.1
          04 Dec 2017 11:00 Vengurla India  0.1
          04 Dec 2017 11:00 Terekhol India  0.1
          04 Dec 2017 11:00 Chopdem India  0.1
          04 Dec 2017 14:00 Vijayadurg India  0.1
          30 Nov 2017 00:00 Tiruchendur India  0.1
          01 Dec 2017 05:00 Alleppey India  0.1
          01 Dec 2017 05:00 Turavur India  0.1
          30 Nov 2017 12:00 Puvar India  0.1
          30 Nov 2017 12:00 Anjengo India  0.1
          04 Dec 2017 03:00 Belekeri India  0.1
          04 Dec 2017 03:00 Ankola India  0.1
          01 Dec 2017 04:00 Ambalapulai India  0.1
          30 Nov 2017 03:00 Periathullay India  0.1
          30 Nov 2017 12:00 Varkkallai India  0.1
          04 Dec 2017 03:00 Sadashivgarh India  0.1
          04 Dec 2017 03:00 Gokarn India  0.1
          04 Dec 2017 08:00 Madgaon India  0.1
          04 Dec 2017 03:00 Majali India  0.1
          04 Dec 2017 08:00 Advota India  0.1
          04 Dec 2017 08:00 Chaudi India  0.1
          04 Dec 2017 14:00 Malvan India  0.1
          01 Dec 2017 10:00 Mattancheri India  0.1
          01 Dec 2017 04:00 Kayankulam India  0.1
          30 Nov 2017 00:00 Kulasekharapatnam India  0.1
          30 Nov 2017 10:00 Kolachel India  0.1
          30 Nov 2017 10:00 Taingapatam India  0.1
          04 Dec 2017 03:00 Manki India  0.1
          04 Dec 2017 03:00 Mavalli India  0.1
          04 Dec 2017 02:00 Shirali India  0.1
          04 Dec 2017 03:00 Kumta India  0.1
          04 Dec 2017 03:00 Honavar India  0.1
          04 Dec 2017 03:00 Karwar India  0.1
          04 Dec 2017 11:00 Panaji India  0.1
          30 Nov 2017 07:00 Tirumullaivasal India  0.1
          30 Nov 2017 07:00 Kaveripattanam India  0.1
          04 Dec 2017 02:00 Bhatkal India  0.1
          05 Dec 2017 06:00 Bhogat India  0.1