Overall Orange alert Tropical Cyclone for CEMPAKA-21
in China
18 Jul 2021 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 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
    19 Jul 2021 18:00 - 20 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 102 km/h n.a. n.a. 0.5
    Overall 139 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

      102 km/h Current Max.

      Up to 12.4 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

        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
          		 2 19 Jul 2021 06:00 Tropical storm 74 no people 220000 people 21, 112.8
          GREEN
          		 2 19 Jul 2021 18:00 Tropical storm 93 no people 480000 people 21.3, 112.4
          GREEN
          		 2 20 Jul 2021 06:00 Tropical storm 102 no people 2 million people 21.5, 112 China
          GREEN
          		 2 20 Jul 2021 18:00 Tropical storm 83 no people 4 million people 21.8, 111.4 China
          GREEN
          		 2 21 Jul 2021 18:00 Tropical storm 65 no people 2.9 million people 21.8, 110.6 China
          GREEN
          		 2 22 Jul 2021 18:00 Tropical depression 56 no people 6.6 million people 21.4, 110.1 China
          GREEN
          		 2 23 Jul 2021 18:00 Tropical storm 65 no people no people 20.5, 111
          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
          Hainan China

          Populated places

          Name Region Province Country City class Population
          Jiangcheng Guangdong China City -
          Maoming Guangdong China City 470000 people
          Gaozhou Guangdong China City 160000 people
          Huangpo Guangdong China City -
          Zhanjiang Guangdong China City 640000 people
          Dongli Guangdong China City 110000 people
          Chikan Guangdong China City -
          Haikou Hainan China City 610000 people
          Leicheng 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)
          Zhanjiang ZHA 75 0
          Meilan HAK 23 0
          Haikou 26 Civ. Paved Yes 11800
          Suixi 32 0

          Ports

          Name LOCODE Country
          Yangjiang CNYJI China
          Zhanjiang CNZHA China
          Lei Shou China
          Haikou CNHAK China

          Dams

          Reservoir Dam Name River Year
          Huangsha Yanghua Jiang 1960
          Renshui Luoguang Shui 1975
          Hexi Rong Jiang 1958
          Hedi Jiuzhou Jiang 1961
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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.