Overall Red alert Tropical Cyclone for CHANTHU-21
in China, Philippines
08 Sep 2021 12 UTC
click on to select bulletin time
  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone CHANTHU-21 can have a high humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Glide number: TC-2021-000140-PHL
    Exposed countries China, Philippines
    Exposed population 5 million in Category 1 or higher
    Maximum wind speed 287 km/h
    Maximum storm surge 0.7 m (12 Sep 12:00 UTC)
    Vulnerability Medium (China)
    Landfall between
    12 Sep 2021 12:00 - 13 Sep 2021 12:00
    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 167 km/h 0.7 m n.a. 1.5
    Overall 287 km/h 0.7 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

      167 km/h Current Max.

      Up to 3.6 million people in Category 1 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 06 Sep 2021 06:00 176 1.2 million No people Japan, China
        Green 2 06 Sep 2021 12:00 176 670 thousand No people Japan, China
        Orange 3 06 Sep 2021 18:00 194 8.7 million 1.7 million China
        Orange 4 07 Sep 2021 00:00 194 12.2 million 3.5 million China
        Orange 5 07 Sep 2021 06:00 213 27.9 million 5.9 million China
        Orange 6 07 Sep 2021 12:00 241 32.3 million 50 thousand China
        Orange 7 07 Sep 2021 18:00 241 58 million 1.4 million China
        Orange 8 08 Sep 2021 00:00 176 44.1 million 1.9 million China
        Orange 9 08 Sep 2021 06:00 241 54.4 million 3.3 million Philippines, China
        Orange 10 08 Sep 2021 12:00 167 64.8 million 3.6 million Philippines, 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 06 Sep 2021 06:00 Tropical depression 46 no people no people 14, 138.3
          GREEN
          		 2 06 Sep 2021 12:00 Tropical depression 56 no people no people 14.7, 138.1
          GREEN
          		 3 06 Sep 2021 18:00 Tropical storm 83 no people no people 15.3, 137.4
          GREEN
          		 4 07 Sep 2021 00:00 Tropical storm 93 no people no people 15.6, 136.6
          GREEN
          		 5 07 Sep 2021 06:00 Category 1 120 no people no people 16.1, 135.7
          GREEN
          		 6 07 Sep 2021 12:00 Category 1 130 no people no people 16.3, 134.6
          GREEN
          		 7 07 Sep 2021 18:00 Category 4 231 no people no people 16.3, 133.5
          GREEN
          		 8 08 Sep 2021 00:00 Category 4 222 no people no people 16, 132.3
          GREEN
          		 9 08 Sep 2021 06:00 Category 5 259 no people no people 15.6, 131.3
          GREEN
          		 10 08 Sep 2021 12:00 Category 4 250 no people no people 15.5, 130.3
          GREEN
          		 10 09 Sep 2021 00:00 Category 4 231 no people no people 15.6, 128.2
          GREEN
          		 10 09 Sep 2021 12:00 Category 4 222 no people <1000 people 16.3, 126.3
          GREEN
          		 10 10 Sep 2021 00:00 Category 4 231 no people 2.3 million people 17.5, 124.2
          GREEN
          		 10 10 Sep 2021 12:00 Category 4 241 8900 people 7.7 million people 18.8, 122.5
          GREEN
          		 10 11 Sep 2021 12:00 Category 4 222 no people 41.1 million people 21, 119.9
          ORANGE
          		 10 12 Sep 2021 12:00 Category 2 167 3.6 million people 60.5 million people 23.2, 118.2
          GREEN
          		 10 13 Sep 2021 12:00 Tropical storm 111 no people no people 25.5, 116.8 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
          Philippines
          China

          Provinces

          Region Province Country
          Cagayan Valley Philippines
          Fujian China

          Populated places

          Name Region Province Country City class Population
          Chihu Fujian China City -
          Fotan Fujian China City -
          Huxi Fujian China City -
          Chengguanzhen Fujian China City -
          Duxun Fujian China City -
          Suian Fujian China City -
          Shiliu Fujian China City -
          Zhangzhou Fujian China City 590000 people
          Shancheng Fujian China City -
          Yanshi Fujian China City -
          Longyan Fujian China City 120000 people
          Zhixi Fujian China City -
          Lianfeng Fujian 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)
          17 0
          Liangcheng 381 0

          Ports

          Name LOCODE Country
          Calayan Philippines
          Zhangzhou China

          Dams

          Reservoir Dam Name River Year
          Yangmei Dengfan He 1977
          Zumalin Xugouxi 1976
          Huanggang Hongfangxi 1974
          Guanyang Huangtan He 1991
          Wananxi Wananxi 1995
          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

          0.7 m

          The maximum Storm surge height is  0.7m in Gongkou, China. This height is estimated for 12 Sep 2021 12:00 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 (165 locations). Calculation based on advisory number 10 of 08 Sep 2021 12:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          12 Sep 2021 12:00 Gongkou China  0.7
          12 Sep 2021 12:00 Dongshan China  0.7
          12 Sep 2021 12:00 Sidu China  0.7
          12 Sep 2021 12:00 Ssu-tu China  0.7
          12 Sep 2021 12:00 Gangkou China  0.6
          12 Sep 2021 12:00 Guleitou China  0.6
          12 Sep 2021 12:00 Chendai China  0.6
          12 Sep 2021 12:00 Hsi-pu China  0.6
          12 Sep 2021 12:00 Liu'ao China  0.6
          12 Sep 2021 12:00 Chihu China  0.5
          12 Sep 2021 12:00 Xucuo China  0.5
          12 Sep 2021 12:00 Gulangyu China  0.5
          12 Sep 2021 12:00 Daomei China  0.5
          12 Sep 2021 12:00 Songyu China  0.5
          12 Sep 2021 12:00 Fugong China  0.5
          12 Sep 2021 12:00 Gangwei China  0.5
          12 Sep 2021 12:00 Xiamen China  0.5
          12 Sep 2021 12:00 Shentu China  0.5
          12 Sep 2021 12:00 Huqiu China  0.5
          12 Sep 2021 12:00 Wutian China  0.5
          12 Sep 2021 12:00 Chen-hai China  0.5
          12 Sep 2021 12:00 Zhenhai China  0.5
          12 Sep 2021 12:00 Fotan China  0.5
          12 Sep 2021 12:00 Dianqian China  0.4
          12 Sep 2021 12:00 Hsia-mei China  0.4
          12 Sep 2021 12:00 Yakou China  0.4
          12 Sep 2021 12:00 Hecuo China  0.4
          10 Sep 2021 20:00 Kaniwalan Philippines  0.4
          10 Sep 2021 20:00 Nagsidel Philippines  0.4
          12 Sep 2021 12:00 An-ting Taiwan  0.4
          12 Sep 2021 12:00 Jiangtou China  0.4
          12 Sep 2021 12:00 Chin-men Taiwan  0.4
          12 Sep 2021 12:00 Aotou China  0.4
          12 Sep 2021 12:00 Yongning China  0.4
          12 Sep 2021 12:00 Shih-shih China  0.4
          12 Sep 2021 12:00 Yang-chai Taiwan  0.4
          12 Sep 2021 12:00 Liuwudian China  0.4
          12 Sep 2021 12:00 Chin-men Tao Taiwan  0.4
          12 Sep 2021 12:00 Zhangban China  0.4
          12 Sep 2021 12:00 Dongyuan China  0.4
          12 Sep 2021 12:00 Hsiang-chih China  0.4
          12 Sep 2021 12:00 Xindian China  0.4
          12 Sep 2021 12:00 Haicang China  0.4
          12 Sep 2021 12:00 Chencheng China  0.3
          12 Sep 2021 12:00 Ch'ing-hsu Taiwan  0.3
          12 Sep 2021 12:00 Shihu China  0.3
          12 Sep 2021 12:00 Lianhe China  0.3
          12 Sep 2021 12:00 Weitou China  0.3
          12 Sep 2021 12:00 Qian'an China  0.3
          12 Sep 2021 12:00 Chongwu China  0.3
          12 Sep 2021 12:00 Jiuzhen China  0.3
          12 Sep 2021 12:00 Shijing China  0.3
          12 Sep 2021 12:00 Chin-ching China  0.3
          12 Sep 2021 12:00 Wangchuan China  0.3
          12 Sep 2021 12:00 Dawu China  0.3
          12 Sep 2021 12:00 Hushi China  0.3
          12 Sep 2021 12:00 Fengwei China  0.3
          12 Sep 2021 12:00 Hsiao-tso China  0.3
          12 Sep 2021 12:00 Tung-shih China  0.3
          12 Sep 2021 12:00 Zhongmen China  0.3
          12 Sep 2021 12:00 P'u-hsi China  0.3
          12 Sep 2021 12:00 Hanjiang China  0.3
          12 Sep 2021 12:00 Chiang-k'ou China  0.3
          10 Sep 2021 18:00 San Dionisio Philippines  0.3
          12 Sep 2021 12:00 P'u-hsi-ch'eng China  0.3
          12 Sep 2021 12:00 Chengguanzhen China  0.3
          12 Sep 2021 12:00 Daitou China  0.3
          12 Sep 2021 12:00 Gaoshan China  0.3
          12 Sep 2021 12:00 Meizhou China  0.3
          12 Sep 2021 12:00 Huanggang China  0.2
          12 Sep 2021 12:00 Tangbian China  0.2
          12 Sep 2021 12:00 Pinghai China  0.2
          12 Sep 2021 12:00 Dongsha China  0.2
          12 Sep 2021 12:00 Lingchuan China  0.2
          12 Sep 2021 12:00 Fengting China  0.2
          12 Sep 2021 12:00 Baisheng China  0.2
          10 Sep 2021 20:00 Rarasi Philippines  0.2
          12 Sep 2021 12:00 Shicheng China  0.2
          12 Sep 2021 12:00 Beicuo China  0.2
          12 Sep 2021 12:00 Nanri China  0.2
          12 Sep 2021 12:00 San Shah China  0.2
          12 Sep 2021 12:00 Chiang-t'ien China  0.2
          12 Sep 2021 12:00 Fuye China  0.2
          12 Sep 2021 12:00 Tung-tai China  0.2
          12 Sep 2021 12:00 Guanban China  0.2
          12 Sep 2021 12:00 Huanglong China  0.2
          12 Sep 2021 12:00 Haikou China  0.2
          12 Sep 2021 12:00 Longtian China  0.2
          12 Sep 2021 12:00 Gangtou China  0.2
          10 Sep 2021 19:00 Dadao Philippines  0.2
          12 Sep 2021 12:00 Zhelin China  0.2
          12 Sep 2021 07:00 Chung-p'ing Taiwan  0.2
          12 Sep 2021 12:00 Wuhang China  0.2
          12 Sep 2021 12:00 Songcheng China  0.2
          12 Sep 2021 12:00 Sansha China  0.2
          10 Sep 2021 12:00 Casambalangan Philippines  0.2
          10 Sep 2021 12:00 San Vincente Philippines  0.2
          12 Sep 2021 12:00 Guhuai China  0.2
          12 Sep 2021 12:00 Langqi China  0.2
          12 Sep 2021 12:00 Tantou China  0.2
          12 Sep 2021 12:00 Chang-chiang China  0.2
          12 Sep 2021 12:00 Yunlong China  0.2
          12 Sep 2021 12:00 Chin-feng China  0.2
          12 Sep 2021 12:00 Fengwo China  0.2
          12 Sep 2021 12:00 Mabi China  0.2
          12 Sep 2021 11:00 Feng-kuei-li Taiwan  0.2
          12 Sep 2021 11:00 Ma-kung Taiwan  0.2
          12 Sep 2021 12:00 Wuqu China  0.2
          10 Sep 2021 17:00 Minabul Philippines  0.2
          12 Sep 2021 12:00 Qingfeng China  0.2
          12 Sep 2021 12:00 Ting-hai China  0.2
          12 Sep 2021 12:00 Ta-ch'iu China  0.2
          12 Sep 2021 12:00 Cao Yu China  0.2
          12 Sep 2021 12:00 Xiahu China  0.2
          10 Sep 2021 21:00 Banua Philippines  0.1
          12 Sep 2021 12:00 Guanjing China  0.1
          12 Sep 2021 12:00 Pingtan China  0.1
          12 Sep 2021 12:00 Houtian China  0.1
          12 Sep 2021 12:00 Luxia China  0.1
          12 Sep 2021 09:00 An-ping Taiwan  0.1
          12 Sep 2021 12:00 Huang-ch'i China  0.1
          12 Sep 2021 12:00 Houzhai China  0.1
          12 Sep 2021 12:00 Anhai China  0.1
          12 Sep 2021 12:00 Tung-ch'ung China  0.1
          12 Sep 2021 12:00 I-shan China  0.1
          12 Sep 2021 12:00 Gexiang China  0.1
          12 Sep 2021 12:00 Gongqiancun China  0.1
          12 Sep 2021 11:00 Nanao China  0.1
          12 Sep 2021 12:00 Chelim China  0.1
          12 Sep 2021 12:00 Hua-hsu Taiwan  0.1
          12 Sep 2021 12:00 Ch'ang-t'an-wo Taiwan  0.1
          12 Sep 2021 12:00 Wai-an Taiwan  0.1
          12 Sep 2021 07:00 Chiang-chun-ao Taiwan  0.1
          12 Sep 2021 12:00 Ch'ang-an Taiwan  0.1
          12 Sep 2021 12:00 P'eng-hu-erh-ts'un Taiwan  0.1
          12 Sep 2021 12:00 Da'ao China  0.1
          12 Sep 2021 12:00 Sha-fan-chieh China  0.1
          12 Sep 2021 12:00 Jinxiang China  0.1
          12 Sep 2021 12:00 Beilong China  0.1
          12 Sep 2021 12:00 Chien-chiang China  0.1
          12 Sep 2021 12:00 Xiaguan China  0.1
          12 Sep 2021 07:00 Ch'eng-ch'ien Taiwan  0.1
          12 Sep 2021 12:00 Lung-men Taiwan  0.1
          12 Sep 2021 12:00 Hanjiang China  0.1
          12 Sep 2021 12:00 Changchun China  0.1
          12 Sep 2021 12:00 Yacheng China  0.1
          12 Sep 2021 12:00 Yung-lung Taiwan  0.1
          12 Sep 2021 12:00 Xinan China  0.1
          10 Sep 2021 16:00 Cadagatan Philippines  0.1
          10 Sep 2021 17:00 Sorongan Philippines  0.1
          12 Sep 2021 11:00 Shenao China  0.1
          12 Sep 2021 08:00 Raoping China  0.1
          12 Sep 2021 12:00 Chu-kao-wan Taiwan  0.1
          12 Sep 2021 07:00 Chu-mu-shui Taiwan  0.1
          12 Sep 2021 12:00 Chi-pei Taiwan  0.1
          12 Sep 2021 12:00 Xiabu China  0.1
          12 Sep 2021 12:00 Zhuangyuanqiao China  0.1
          12 Sep 2021 12:00 Longwan China  0.1
          12 Sep 2021 12:00 Siqianjie China  0.1
          12 Sep 2021 12:00 Xiaodoumen China  0.1
          12 Sep 2021 12:00 Jiangtan China  0.1
          10 Sep 2021 12:00 Buguey Philippines  0.1
          10 Sep 2021 12:00 Gonzaga Philippines  0.1
          12 Sep 2021 12:00 Chung-ho Taiwan  0.1
          12 Sep 2021 12:00 Dituan China  0.1