Overall Orange alert Tropical Cyclone for CEMPAKA-21
in China
21 Jul 2021 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 CEMPAKA-21 can have a medium humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Glide number: TC-2021-000094-CHN
    Exposed countries China
    Exposed population 2.2 million in Category 1 or higher
    Maximum wind speed 139 km/h
    Maximum storm surge n.a.
    Vulnerability Medium (China)
    Landfall between
    23 Jul 2021 06:00 - 24 Jul 2021 06:00
    in 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 65 km/h n.a. n.a. 1.5
    Overall 139 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 36.9 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 2 18 Jul 2021 18:00 102 12.4 million No people China
        Green 3 19 Jul 2021 00:00 111 7.1 million No people China
        Green 4 19 Jul 2021 06:00 120 14.2 million Few people China
        Orange 5 19 Jul 2021 12:00 120 12.4 million 300 thousand China
        Orange 6 19 Jul 2021 18:00 120 22.5 million 850 thousand China
        Orange 7 20 Jul 2021 00:00 120 78.5 million 860 thousand China
        Orange 8 20 Jul 2021 06:00 130 52.4 million 1.4 million China
        Orange 9 20 Jul 2021 12:00 139 53.8 million 1.8 million China
        Green 10 20 Jul 2021 18:00 102 28.6 million 2.2 million China
        Orange 11 21 Jul 2021 00:00 65 44.6 million 2.2 million China
        Orange 12 21 Jul 2021 06:00 65 36.9 million 2.2 million 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
          		 2 18 Jul 2021 18:00 Tropical storm 65 no people no people 20.8, 113.2
          GREEN
          		 3 19 Jul 2021 00:00 Tropical storm 83 no people 210000 people 20.9, 113.1
          GREEN
          		 4 19 Jul 2021 06:00 Tropical storm 93 no people 1.9 million people 21, 113
          GREEN
          		 5 19 Jul 2021 12:00 Tropical storm 102 <1000 people 1.7 million people 21.2, 112.7
          GREEN
          		 6 19 Jul 2021 18:00 Category 1 120 <1000 people 1.8 million people 21.2, 112.5
          ORANGE
          		 7 20 Jul 2021 00:00 Category 1 120 870000 people 13.4 million people 21.3, 112.4
          ORANGE
          		 8 20 Jul 2021 06:00 Category 1 130 1.4 million people 16.2 million people 21.4, 112.3
          ORANGE
          		 9 20 Jul 2021 12:00 Category 1 139 1.8 million people 21.5 million people 21.7, 112 China
          GREEN
          		 10 20 Jul 2021 18:00 Tropical storm 102 no people 11.6 million people 21.7, 111.4 China
          GREEN
          		 11 21 Jul 2021 00:00 Tropical storm 65 no people 9.3 million people 21.9, 110.9 China
          GREEN
          		 12 21 Jul 2021 06:00 Tropical depression 46 no people no people 22.1, 110.9 China
          GREEN
          		 12 21 Jul 2021 18:00 Tropical depression 46 no people no people 22.3, 110.1 China
          GREEN
          		 12 22 Jul 2021 06:00 Tropical depression 46 no people no people 22.1, 109.1 China
          GREEN
          		 12 22 Jul 2021 18:00 Tropical depression 56 no people 3.5 million people 21.5, 108.5 China
          ORANGE
          		 12 23 Jul 2021 06:00 Tropical storm 65 no people 13.7 million people 20.7, 108.3
          GREEN
          		 12 24 Jul 2021 06:00 Tropical storm 65 no people 9.7 million people 19.1, 109.6 China
          GREEN
          		 12 25 Jul 2021 06:00 Tropical depression 37 no people no people 19.4, 112.5
          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
          Guangdong China
          Guangxi China
          Hainan China
          Macau China
          Quang Ninh Viet Nam
          Lang Son Viet Nam
          Hai Phong Viet Nam

          Populated places

          Name Region Province Country City class Population
          Gaozhou Guangdong China City 160000 people
          Maoming Guangdong China City 470000 people
          Meilu Guangdong China City 100000 people
          Huangpo Guangdong China City -
          Chuncheng Guangdong China City 150000 people
          Jiangcheng Guangdong China City -
          Encheng Guangdong China City 110000 people
          Xinxing Guangdong China City -
          Cangcheng Guangdong China City -
          Sihe Guangdong China City -
          Lianzhou Guangxi China City 71000 people
          Zhaoqing Guangdong China City 360000 people
          Taicheng Guangdong China City 140000 people
          Beihai Guangxi China City 290000 people
          Mingcheng Guangdong China City -
          Sanbu Guangdong China City 140000 people
          Xincheng Guangdong China City -
          Jiangmen Guangdong China City 530000 people
          Haikou Hainan China City 610000 people
          Xiaolan Guangdong China City 180000 people
          Zhongshan Guangdong China City 340000 people
          Sanxiang Guangdong China City -
          Dingcheng Hainan China City -
          Macau Macau SAR Macau (China) Major city -
          Lingao Hainan China City 65000 people
          Wencheng Hainan China City -
          Jinjiang Hainan China City -
          Jiaji Hainan China City -
          Wancheng Hainan China City -
          Cam Pha Quang Ninh Vietnam City 130000 people
          Duntou Hainan China City -
          Baocheng Hainan China City -
          Lingcheng Hainan China City -
          Sanya Hainan China City 140000 people
          Yacheng Hainan China City -
          Yulin Hainan China City -
          Huangliu Hainan 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)
          Beihai BHY 25 0
          Haikou 26 Civ. Paved Yes 11800
          Meilan HAK 23 0
          Zhuhai ZUH 6 0
          Shanzhou SZO unknown 0
          Macau MFM 6 Civ. Paved Yes 11000
          Jtalaishi 121 0
          Lingshui 25 0
          Foluo Northeast 165 0
          Sanya-Yaxian 15 0
          Sanya (Fenghuang) SYX 28 Civ. Paved Yes 11100

          Ports

          Name LOCODE Country
          Shuidong CNSDG China
          Yangjiang CNYJI China
          Bei Hai CNBHY China
          Wei Chou Island China
          Jiangmen CNJMN China
          Haikou CNHAK China
          Hsu Wen China
          Fangcheng Gang China
          Lin Kao China
          Fangcheng CNFAN China
          Van Hoa Vietnam
          Cam Pha Vietnam
          Paso China
          Basuo CNBAS China
          Hongai VNHON Vietnam
          Cua Lo China
          Sanya CNSYX China
          Yu Lin Chiang China
          Cape Bastion China

          Dams

          Reservoir Dam Name River Year
          Gaozhou Dajing He 1959
          Fucao Qianpai He 1997
          Huangsha Yanghua Jiang 1960
          Renshui Luoguang Shui 1975
          Jinjiang Tan He 1972
          Donghu Nalong He 1961
          Dalongdong Dalongdong He 1959
          Hexi Rong Jiang 1958
          Fushan Huachang 1974
          Jiatan Haizai 1961
          Songtao Nandu Jiang 1970
          Niululing Wanquan 1979
          Shilu Shilu 1973
          Xiaomei Duzuong 1975
          Daguanba Changhua Jiang 1995
          Tuoxin Ganen He 1978
          Changmao Wanglou 1960
          Banling Shanya 1969
          Baogu Hingyuan 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.