Overall Green alert Tropical Cyclone for ROKE-17
in China
22 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 ROKE-17 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries China
    Exposed population No people in Category 1 or higher
    Maximum wind speed 83 km/h
    Maximum storm surge n.a.
    Vulnerability Medium (China)

    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 83 km/h n.a. n.a. 0.5
    Overall 83 km/h 0.0 m n.a. 0.5

    Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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    Wind

      83 km/h Current Max.

      Up to 34.2 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
        Green 1 21 Jul 2017 18:00 56 No people No people
        Green 2 22 Jul 2017 00:00 56 No people No people
        Green 3 22 Jul 2017 06:00 83 34.2 million No people China

        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 18:00 Tropical depression 46 no people no people 19.6, 122.2
          GREEN
          		 2 22 Jul 2017 00:00 Tropical depression 46 no people no people 20.7, 120.8
          GREEN
          		 3 22 Jul 2017 06:00 Tropical storm 65 no people 7 million people 21.3, 118.6 China
          GREEN
          		 3 22 Jul 2017 18:00 Tropical storm 83 no people 34.2 million people 22.2, 116.8 China
          GREEN
          		 3 23 Jul 2017 06:00 Tropical depression 56 no people no people 23.4, 114.4 China
          GREEN
          		 3 23 Jul 2017 18:00 Tropical depression 37 no people no people 24.5, 112 China
          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

          Provinces

          Region Province Country
          Guangdong China
          Hong Kong China

          Populated places

          Name Region Province Country City class Population
          Houzhai Guangdong China City -
          Haimen Guangdong China City 120000 people
          Chaoyang Guangdong China City -
          Shantou Guangdong China Major city 1.3 million people
          Shalong Guangdong China City -
          Chenghai Guangdong China City 150000 people
          Huilai Guangdong China City -
          Anbu Guangdong China City 160000 people
          Jiazi Guangdong China City 130000 people
          Jieshi Guangdong China City 140000 people
          Liusha Guangdong China City 120000 people
          Jieyang Guangdong China City -
          Ni Kou Guangdong China City -
          Hongyang Guangdong China City -
          Mianhu Guangdong China City -
          Lufeng Guangdong China City -
          Hepo Guangdong China City 130000 people
          Shanwei Guangdong China City 160000 people
          Haifeng Guangdong China City -
          Pinghai Guangdong China City -
          Zijin Guangdong China City -
          Pingshan Guangdong China City 110000 people
          Lantang Guangdong China City -
          Danshui Guangdong China City 130000 people
          Huizhou Guangdong China City 290000 people
          Heyuan Guangdong China City 540000 people
          Bo-luo Guangdong China City -
          Longmen Guangdong China City -
          Shilong Guangdong China City 110000 people
          Dongguan Guangdong China City 390000 people
          Zengcheng Guangdong China City -
          Fengcheng Guangdong China City -
          Liangkou Guangdong China City -

          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)
          Shantou Northeast SWA 3 0
          Huiyang 18 0
          Xiangshui Hsu 44 0

          Ports

          Name LOCODE Country
          Lufeng Terminal China
          Shantou CNSWA China
          Shanwei CNSWE China
          Spec / lde 888 China
          Huizhou China
          Yantian CNYTN China

          Dams

          Reservoir Dam Name River Year
          Wusongling Bwiling He 1958
          Shiliutan Longjiang He 1959
          Tangkeng Lian Jiang 1960
          Longtan Long Jiang 1960
          Xinxihe Trib. Rong Jiang 1958
          Longjing Trib. Rong Jiang n/a
          Longjing Trib. Rong Jiang 1960
          Hengjiang Liantian He 1971
          Nangao Lu He 1985
          Baipenzhu Xizhi Jiang 1987
          Qiji Trib. Dong Jiang n/a
          Huangshandong Mapi He 1961
          Xinfengjiang Xinfeng Jiang 1960
          Shuidongpi Gongzhuang He 1985
          Xiangang Trib. Dong Jiang n/a
          Songmushan Trib. Dong Jiang n/a
          Lianhe Lipo Shui 1964
          Tiantangshan Zeng Jiang 1992
          Guangzhou Pump Storage Chenledong 1993
          Liuxihe Liuxi He 1958
          Huanglongdai Fenxi Shui 1979
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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.