Overall Orange alert Tropical Cyclone for OCKHI-17
in India, Maldives, Sri Lanka
04 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 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 1.6 m (06 Dec 06:00 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 74 km/h 1.6 m n.a. 1.5
    Overall 176 km/h 1.6 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

      74 km/h Current Max.

      Up to 32.2 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
        Orange 8 01 Dec 2017 12:00 65 38.8 million No people India, Maldives, Sri Lanka
        Orange 9 01 Dec 2017 18:00 102 71.7 million No people India, Maldives, Sri Lanka
        Green 10 02 Dec 2017 00:00 176 26.2 million No people India, Maldives, Sri Lanka
        Orange 11 02 Dec 2017 06:00 93 36 million No people India, Maldives, Sri Lanka
        Orange 12 02 Dec 2017 12:00 139 57.3 million No people India, Maldives, Sri Lanka
        Orange 13 02 Dec 2017 18:00 139 106.1 million No people India, Maldives, Sri Lanka
        Orange 14 03 Dec 2017 00:00 102 85.1 million No people India, Maldives, Sri Lanka
        Orange 15 03 Dec 2017 06:00 65 40.8 million No people India, Maldives, Sri Lanka
        Orange 16 03 Dec 2017 12:00 74 54.6 million No people India, Maldives, Sri Lanka
        Orange 17 03 Dec 2017 18:00 65 44.4 million No people India, Maldives, Sri Lanka
        Green 18 04 Dec 2017 00:00 130 21.8 million No people India, Maldives, Sri Lanka
        Green 19 04 Dec 2017 06:00 130 27.2 million No people India, Maldives, Sri Lanka
        Green 20 04 Dec 2017 12:00 120 29.7 million No people India, Maldives, Sri Lanka
        Orange 21 04 Dec 2017 18:00 74 32.2 million No people India, Maldives, 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
          		 8 01 Dec 2017 12:00 Category 1 130 no people 77000 people 8.9, 72.6 India
          GREEN
          		 9 01 Dec 2017 18:00 Category 1 148 no people 56000 people 9.2, 72 India
          GREEN
          		 10 02 Dec 2017 00:00 Category 2 157 no people 51000 people 9.4, 71.5 India
          GREEN
          		 11 02 Dec 2017 06:00 Category 2 157 no people 32000 people 9.9, 71 India
          GREEN
          		 12 02 Dec 2017 12:00 Category 2 176 no people 19000 people 10.6, 70.4 India
          GREEN
          		 13 02 Dec 2017 18:00 Category 3 185 no people no people 11.3, 69.8
          GREEN
          		 14 03 Dec 2017 00:00 Category 2 176 no people no people 11.7, 69.3
          GREEN
          		 15 03 Dec 2017 06:00 Category 1 148 no people no people 12, 68.8
          GREEN
          		 16 03 Dec 2017 12:00 Category 1 139 no people no people 12.8, 68.7
          GREEN
          		 17 03 Dec 2017 18:00 Category 1 139 no people no people 13.6, 68.6
          GREEN
          		 18 04 Dec 2017 00:00 Category 1 130 no people no people 14.2, 68.7
          GREEN
          		 19 04 Dec 2017 06:00 Category 1 130 no people no people 14.8, 68.7
          GREEN
          		 20 04 Dec 2017 12:00 Category 1 120 no people no people 15.4, 68.9
          GREEN
          		 21 04 Dec 2017 18:00 Tropical storm 111 no people no people 16.5, 69.6
          GREEN
          		 21 05 Dec 2017 06:00 Tropical storm 93 no people 690000 people 18, 70.5 India
          ORANGE
          		 21 05 Dec 2017 18:00 Tropical storm 74 no people 11.2 million people 19.7, 71.4 India
          GREEN
          		 21 06 Dec 2017 06:00 Tropical depression 46 no people no people 22.3, 72 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
          Maldives
          Sri Lanka

          Provinces

          Region Province Country
          Maharashtra India
          Gujarat India
          Lakshadweep India
          Kerala India
          Tamil Nadu India
          Haa Aliff Maldives
          North Western Sri Lanka
          Western Sri Lanka
          Southern Sri Lanka

          Populated places

          Name Region Province Country City class Population
          Mahuva Gujarat India City 73000 people
          Kundla Gujarat India City 76000 people
          Amreli Gujarat India City 99000 people
          Bhavnagar Gujarat India City 510000 people
          Botad Gujarat India City 100000 people
          Khambhat Gujarat India City 81000 people
          Surendranagar Gujarat India City 180000 people
          Dholka Gujarat India City 55000 people
          Mattancheri Kerala India City -
          Alleppey Kerala India City -
          Kottayam Kerala India City 59000 people
          Quilon Kerala India City -
          Tenkasi Tamil Nadu India City 63000 people
          Trivandrum Kerala India City -
          Kallidaikurichchi Tamil Nadu India City 25000 people
          Tiruneveli Tamil Nadu India City -
          Mel Palaiyam Tamil Nadu India City -
          Palayankottai Tamil Nadu India City -
          Nagercoil Tamil Nadu India City 210000 people
          Srivaikuntam Tamil Nadu India City 16000 people
          Tiruchchendur Tamil Nadu India City 30000 people
          Negombo Western Sri Lanka City 140000 people
          Ragama Western Sri Lanka City 27000 people
          Colombo Western Sri Lanka Capital 610000 people
          Gampaha Western Sri Lanka City 9300 people
          Wattala Western Sri Lanka City 30000 people
          Kotte Western Sri Lanka City 120000 people
          Moratuwa Western Sri Lanka City 180000 people
          Panadura Western Sri Lanka City -
          Wadduwa Western Sri Lanka City -
          Kalutara Western Sri Lanka City 38000 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)
          Diu DIU 14 0
          Surat STV 15 0
          Bhavnagar BHU 10 Civ. Paved Yes 6300
          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

          Ports

          Name LOCODE Country
          Muldwarka India
          Diu INDIU India
          Pipavav Bandar India
          Hazira India
          Bhavnagar INBHU India
          Amini Island India
          Cambay INCAM India
          Kavaratti Island India
          Kalpeni Island India
          Minicoy 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

          Dams

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

          1.6 m

          The maximum Storm surge height is  1.6m in Wadgam, India. This height is estimated for 06 Dec 2017 06:00 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 (158 locations). Calculation based on advisory number 21 of 04 Dec 2017 18:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          06 Dec 2017 06:00 Wadgam India  1.6
          06 Dec 2017 06:00 Kambhat India  1.5
          06 Dec 2017 06:00 Kavi India  1.5
          06 Dec 2017 06:00 Sarod India  1.5
          06 Dec 2017 06:00 Asarsa India  1.5
          06 Dec 2017 06:00 Tankari India  1.5
          06 Dec 2017 06:00 Muler India  1.4
          06 Dec 2017 03:00 Ghogha India  1.2
          06 Dec 2017 03:00 Dahej India  1.2
          06 Dec 2017 04:00 Harinagar India  1.2
          06 Dec 2017 03:00 Olpad India  1.1
          06 Dec 2017 00:00 Mahuva India  1.1
          06 Dec 2017 03:00 Surat India  1.0
          06 Dec 2017 03:00 Bhagva India  1.0
          06 Dec 2017 02:00 Damka India  1.0
          06 Dec 2017 02:00 Mahuver India  1.0
          06 Dec 2017 02:00 Jalalpur India  1.0
          06 Dec 2017 00:00 Kotada India  0.9
          05 Dec 2017 23:00 Kathiwadar Bandar India  0.8
          06 Dec 2017 01:00 Udvada India  0.7
          06 Dec 2017 01:00 Daman India  0.7
          05 Dec 2017 22:00 Jafarabad India  0.6
          06 Dec 2017 01:00 Maroli India  0.6
          06 Dec 2017 00:00 Gholvad India  0.6
          06 Dec 2017 00:00 Bordi India  0.6
          06 Dec 2017 00:00 Umbargam India  0.6
          05 Dec 2017 23:00 Tarapur India  0.5
          05 Dec 2017 21:00 Palghar India  0.5
          05 Dec 2017 21:00 Mahim India  0.5
          06 Dec 2017 00:00 Malyan India  0.5
          05 Dec 2017 20:00 Agashi India  0.5
          05 Dec 2017 21:00 Diva India  0.5
          05 Dec 2017 22:00 Rohisa India  0.5
          05 Dec 2017 20:00 Vasai India  0.5
          05 Dec 2017 19:00 Mumbai India  0.5
          05 Dec 2017 20:00 Nalasopara India  0.5
          05 Dec 2017 19:00 Trombay India  0.5
          05 Dec 2017 19:00 Asumumbay India  0.5
          05 Dec 2017 21:00 Dharabandar India  0.5
          05 Dec 2017 20:00 Dongri India  0.5
          05 Dec 2017 21:00 Mira Bhayandar India  0.5
          05 Dec 2017 22:00 Shirgaon India  0.5
          05 Dec 2017 22:00 Boisar India  0.5
          05 Dec 2017 21:00 Navghar India  0.5
          05 Dec 2017 21:00 Uran India  0.4
          05 Dec 2017 20:00 Malad India  0.4
          05 Dec 2017 20:00 Delvada India  0.4
          05 Dec 2017 20:00 Nawabandar India  0.4
          05 Dec 2017 20:00 Mandve 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 Kattumavadi India  0.4
          30 Nov 2017 07:00 Kottaippattanam India  0.4
          30 Nov 2017 02:00 Manamelkudi India  0.4
          30 Nov 2017 06:00 Ammapatam India  0.3
          05 Dec 2017 19:00 Alibag India  0.3
          05 Dec 2017 17:00 Revadanda India  0.3
          05 Dec 2017 17:00 Murud India  0.3
          05 Dec 2017 16:00 Agar Panchaitan India  0.3
          05 Dec 2017 15:00 Srivardhan India  0.3
          29 Nov 2017 22:00 Kilakarai India  0.3
          29 Nov 2017 22:00 Muttupettai India  0.3
          05 Dec 2017 15:00 Bankot India  0.3
          05 Dec 2017 15:00 Kelshi India  0.3
          05 Dec 2017 17:00 Kotra Nes India  0.3
          05 Dec 2017 17:00 Dangarvadi India  0.3
          30 Nov 2017 04:00 Irumeni India  0.3
          30 Nov 2017 04:00 Rameswaram India  0.3
          05 Dec 2017 15:00 Guhagar India  0.3
          05 Dec 2017 15:00 Anjanwel India  0.3
          05 Dec 2017 15:00 Lodhwa India  0.3
          05 Dec 2017 15:00 Sutrapada India  0.3
          30 Nov 2017 04:00 Pamban India  0.2
          05 Dec 2017 15:00 Boria India  0.2
          05 Dec 2017 15:00 Jaigarh 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 15:00 Mirya India  0.2
          05 Dec 2017 15:00 Ratnagiri India  0.2
          05 Dec 2017 15:00 Kodinar India  0.2
          05 Dec 2017 15:00 Purnagad India  0.2
          05 Dec 2017 14:00 Adiura India  0.2
          30 Nov 2017 00:00 Kayalpatnam India  0.2
          30 Nov 2017 07:00 Sikkal India  0.2
          05 Dec 2017 13:00 Devgarh India  0.2
          05 Dec 2017 15:00 Purangad India  0.2
          05 Dec 2017 15:00 Somnath India  0.2
          02 Dec 2017 19:00 Quilandi India  0.2
          05 Dec 2017 13:00 Pural India  0.2
          05 Dec 2017 15:00 Chorwad India  0.2
          05 Dec 2017 15:00 Veraval India  0.2
          02 Dec 2017 19:00 Talakkolattur India  0.2
          02 Dec 2017 19:00 Kozhikode India  0.2
          02 Dec 2017 19:00 Beypore 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
          05 Dec 2017 13:00 Achra India  0.2
          02 Dec 2017 19:00 Chaliyam India  0.2
          30 Nov 2017 06:00 Kayts Sri Lanka  0.2
          30 Nov 2017 03:00 Vijayapati India  0.2
          05 Dec 2017 13:00 Anjuna India  0.2
          05 Dec 2017 03:00 Marmagao India  0.2
          05 Dec 2017 03:00 Vasco Da Gama India  0.2
          05 Dec 2017 13:00 Vengurla India  0.2
          05 Dec 2017 13:00 Terekhol India  0.2
          05 Dec 2017 13:00 Chopdem India  0.2
          05 Dec 2017 14:00 Vijayadurg India  0.2
          05 Dec 2017 15:00 Shil India  0.2
          05 Dec 2017 15:00 Mangrol India  0.2
          30 Nov 2017 06:00 Kurichchikadu Sri Lanka  0.1
          30 Nov 2017 13:00 Vilinjam India  0.1
          30 Nov 2017 13:00 Thiruvananthapuram India  0.1
          30 Nov 2017 13:00 Anjengo India  0.1
          05 Dec 2017 03:00 Belekeri India  0.1
          05 Dec 2017 03:00 Ankola India  0.1
          05 Dec 2017 03:00 Majali India  0.1
          05 Dec 2017 03:00 Agacaim India  0.1
          05 Dec 2017 13:00 Madgaon India  0.1
          05 Dec 2017 03:00 Advota India  0.1
          05 Dec 2017 03:00 Chaudi India  0.1
          30 Nov 2017 13:00 Quilon India  0.1
          30 Nov 2017 06:00 Delft Centre Sri Lanka  0.1
          30 Nov 2017 08:00 Kadiapattanam India  0.1
          05 Dec 2017 13:00 Malvan India  0.1
          05 Dec 2017 18:00 Gorser India  0.1
          06 Dec 2017 06:00 Ratia 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
          05 Dec 2017 03:00 Kumta India  0.1
          05 Dec 2017 13:00 Panaji India  0.1
          06 Dec 2017 06:00 Adodar India  0.1
          01 Dec 2017 04:00 Ambalapulai India  0.1
          30 Nov 2017 03:00 Periathullay India  0.1
          05 Dec 2017 03:00 Manki India  0.1
          05 Dec 2017 03:00 Mavalli India  0.1
          05 Dec 2017 03:00 Shirali India  0.1
          05 Dec 2017 03:00 Karwar India  0.1
          05 Dec 2017 03:00 Gokarn India  0.1
          02 Dec 2017 19:00 Tirurangadi India  0.1
          01 Dec 2017 11:00 Mattancheri India  0.1
          01 Dec 2017 04:00 Kayankulam India  0.1
          05 Dec 2017 03:00 Bhatkal India  0.1
          06 Dec 2017 06:00 Porbandar India  0.1
          06 Dec 2017 03:00 Sika 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
          30 Nov 2017 13:00 Varkkallai India  0.1
          05 Dec 2017 03:00 Honavar India  0.1
          05 Dec 2017 03:00 Sadashivgarh India  0.1
          30 Nov 2017 07:00 Tirumullaivasal India  0.1
          30 Nov 2017 07:00 Kaveripattanam India  0.1
          02 Dec 2017 01:00 Payyoli India  0.1
          05 Dec 2017 03:00 Bainduru India  0.1