Overall Green alert Tropical Cyclone for SONCA-17
in Viet Nam, Laos, Thailand
21 Jul 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 SONCA-17 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries Viet Nam, Laos, Thailand
    Exposed population No people in Category 1 or higher
    Maximum wind speed 102 km/h
    Maximum storm surge n.a.
    Vulnerability High (Vietnam)

    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 n.a. n.a. 1.5
    Overall 102 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

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    Wind

      74 km/h Current Max.

      Up to 34.9 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
        Green 1 21 Jul 2017 00:00 102 No people No people
        Orange 2 21 Jul 2017 06:00 74 34.9 million No people China, Viet Nam

        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 21 Jul 2017 00:00 Tropical depression 56 no people no people 17.1, 114.8
          GREEN
          		 2 21 Jul 2017 06:00 Tropical depression 56 no people no people 17.8, 113.7
          GREEN
          		 2 21 Jul 2017 18:00 Tropical storm 74 no people 810000 people 18.3, 112.5 China
          GREEN
          		 2 22 Jul 2017 06:00 Tropical storm 93 no people 5 million people 18.7, 111.3 China
          GREEN
          		 2 22 Jul 2017 18:00 Tropical storm 83 no people 6 million people 19.1, 110 China
          ORANGE
          		 2 23 Jul 2017 06:00 Tropical storm 74 no people 23.2 million people 19.6, 108.8 Viet Nam
          ORANGE
          		 2 24 Jul 2017 06:00 Tropical storm 65 no people 28.4 million people 20.7, 106.4 Viet Nam
          GREEN
          		 2 25 Jul 2017 06:00 Tropical depression 37 no people no people 22.2, 104.3 Viet Nam
          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
          China
          Vietnam

          Provinces

          Region Province Country
          Hainan China
          Quang Ninh Viet Nam
          Hai Phong Viet Nam
          Lang Son Viet Nam
          Thai Binh Viet Nam
          Nam Ha Viet Nam
          Ha Bac Viet Nam
          Hai Hung Viet Nam
          Ninh Binh Viet Nam
          Thanh Hoa Viet Nam
          Ha Tay Viet Nam
          Hoa Binh Viet Nam
          Ha Noi Viet Nam
          Bac Thai Viet Nam
          Vinh Phu Viet Nam
          Tuyen Quang Viet Nam
          Son La Viet Nam
          Yen Bai Viet Nam
          Ha Giang Viet Nam
          Yunnan China
          Lao Cai Viet Nam

          Populated places

          Name Region Province Country City class Population
          Wancheng Hainan China City -
          Wencheng Hainan China City -
          Jiaji Hainan China City -
          Lingcheng Hainan China City -
          Dingcheng Hainan China City -
          Baocheng Hainan China City -
          Jinjiang Hainan China City -
          Lingao Hainan China City 65000 people
          Duntou Hainan China City -
          Cam Pha Quang Ninh Vietnam City 130000 people
          Hai Phòng Hai Duong Vietnam Major city 590000 people
          Thuy U Hai Duong Vietnam City -
          Thái Bình Thai Binh Vietnam City 53000 people
          Thuan Nghiep Thai Binh Vietnam City -
          Nam Dinh Nam Dimh Vietnam City 190000 people
          Hai Duong Hai Duong Vietnam City 57000 people
          Ninh Bình Ninh Binh Vietnam City 36000 people
          Phu Lý Ha Namh Vietnam City 32000 people
          Hà Noi Ha Noi Vietnam Capital 1.4 million people
          Thái Nguyên Bac Thai Vietnam City 130000 people
          Hòa Bình Hoa Binh Vietnam City 110000 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)
          Lingshui 25 0
          Jtalaishi 121 0
          Foluo Northeast 165 0
          Hai Phong Cat Bi HPH 30480 Civ. Paved No 7800
          Hai Phong Kien An 4 0
          Kep 12 0
          Ha Noi Gia Lam VGL 17 Mil. Paved No 6700
          Hanoi / Bac Mai 5 0
          Noibai HAN 11 Civ. Paved Yes 10400
          Hoa Lac 43 0
          39 0

          Ports

          Name LOCODE Country
          Hsu Wen China
          Lin Kao China
          Cua Lo China
          Paso China
          Basuo CNBAS China
          Cam Pha Vietnam
          Hongai VNHON Vietnam
          Haiphong VNHPH Vietnam
          Las Tres Marias Island Vietnam
          Hanoi VNHAN Vietnam

          Dams

          Reservoir Dam Name River Year
          Niululing Wanquan 1979
          Xiaomei Duzuong 1975
          Jiatan Haizai 1961
          Banling Shanya 1969
          Fushan Huachang 1974
          Songtao Nandu Jiang 1970
          Baogu Hingyuan 1979
          Changmao Wanglou 1960
          Shilu Shilu 1973
          Daguanba Changhua Jiang 1995
          Tuoxin Ganen He 1978
          Hoa Binh Da 1994
          Thac Ba Chay 1971
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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

          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.