Overall Green alert Tropical Cyclone for CHOI-WAN-21
in Japan, China, Philippines,

Impact

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

Meteorological source HWRF
Exposed countries Philippines
Exposed population No people in Category 1 or higher
Maximum wind speed 90 km/h
Maximum storm surge 0.2 m (30 May 12:00 UTC)
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
HWRF Current 90 km/h 0.2 m 305 mm 0.5
HWRF Overall 130 km/h 0.7 m 1112 mm 0.5

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

Wind

130 km/h

Up to 100 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 30 May 2021 06:00 UTC
CategoryCountryPopulation 
Tropical StormPhilippines102,628 

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert Date (UTC) Max Winds (km/h) Pop in Cat. 1 or higher TS Cat. 1 Cat. 2 Cat. 3 Cat. 4 Cat. 5 Countries
GREEN 1 29 May 2021 18:00 83 - - - - - - -
GREEN 2 30 May 2021 00:00 83 -
- - - - - Palau
GREEN 3 30 May 2021 06:00 119 -
- - - - - Philippines
Download:





Impact estimation for the next 72h




Rain exposed population - AoIs

Estimations based on the bulletin of 30 May 2021 06:00 UTC
LevelCountryPopulation 
250-500 mmPhilippines28,058 
100-250 mmPhilippines336,922 
50-100 mmPhilippines1,209,101 

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 29 May 2021 18:00 333 - - - - - - -
Blue 2 30 May 2021 00:00 460 - - - - - - -
Blue 3 30 May 2021 06:00 893 360 thousand
- - - Philippines




Impact estimation for the next 72h

StormSurge

0.2 m

The maximum Storm surge height is  0.2m in Yancangcheng, China. This height is estimated for 30 May 2021 12:00 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.

Storm Surge Exposed population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 30 May 2021 06:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
30 May 2021 12:00 Yancangcheng China  0.2
30 May 2021 12:00 Hsing-chuang China  0.2
30 May 2021 12:00 Haitou China  0.2
30 May 2021 12:00 Shiqiao China  0.2
30 May 2021 12:00 Hsia-k'ou China  0.2
30 May 2021 12:00 Jiuliqi China  0.2
30 May 2021 12:00 Che-wang China  0.2
30 May 2021 12:00 Xugou China  0.2
30 May 2021 12:00 Dongxi Liandao China  0.2
30 May 2021 07:45 Lingmen China  0.2
30 May 2021 07:45 Aohuan China  0.2
30 May 2021 07:45 Dalu China  0.2
30 May 2021 07:45 Guan'ao China  0.2
30 May 2021 07:45 Shih-t'ang China  0.2
30 May 2021 07:45 Songmen China  0.2
30 May 2021 09:30 Yingluo China  0.2
30 May 2021 09:30 Caotan China  0.2
30 May 2021 09:30 Longtousha China  0.2
30 May 2021 09:30 Yingzai China  0.2
30 May 2021 12:00 Fenshui China  0.2
30 May 2021 12:00 Andongwei China  0.2
30 May 2021 12:00 Lanshantou China  0.2
30 May 2021 08:30 Xinyanggang China  0.2
30 May 2021 07:45 Dongtaihezha China  0.2
30 May 2021 12:00 Sansha China  0.2
30 May 2021 12:00 Huang-ch'i China  0.2
30 May 2021 12:00 Shacheng China  0.2
30 May 2021 10:15 Atimonan Philippines  0.2
30 May 2021 10:15 Pag-aguasan Philippines  0.2
30 May 2021 10:15 Concepcion Philippines  0.2
30 May 2021 10:15 Alabat Philippines  0.2
30 May 2021 10:15 Mascarina Philippines  0.2
30 May 2021 10:15 Apad Philippines  0.2
30 May 2021 10:15 Gumaca Philippines  0.2
30 May 2021 10:15 Argosino Philippines  0.2
30 May 2021 08:30 T'ang-sheng-chiang China  0.2
30 May 2021 08:30 Dongxiaohai China  0.2
30 May 2021 12:00 Taolekow China  0.2
30 May 2021 10:15 Perez Philippines  0.2
30 May 2021 10:15 Cavilla Philippines  0.2
30 May 2021 12:00 Hsia-ho-ch'eng China  0.2
30 May 2021 12:00 Xiahecheng China  0.2
30 May 2021 12:00 Zhangjialou China  0.2
30 May 2021 12:00 Liujiazhai China  0.2
30 May 2021 12:00 Shijiusuo China  0.2
30 May 2021 12:00 Hongshiya China  0.2
30 May 2021 12:00 Lingshanwei China  0.2
30 May 2021 12:00 Houwan China  0.2
30 May 2021 12:00 Yantaiqian China  0.2
30 May 2021 12:00 Xianlang China  0.2
30 May 2021 12:00 Beizhuang China  0.2
30 May 2021 12:00 Ch'ing-tao China  0.2
30 May 2021 12:00 Sifang China  0.2
30 May 2021 12:00 Qingdao China  0.2
30 May 2021 12:00 Fushansuo China  0.2
30 May 2021 12:00 Xiaguan China  0.2
30 May 2021 12:00 Pucheng China  0.2
30 May 2021 09:15 Guihing Philippines  0.2
30 May 2021 09:15 Haley Philippines  0.2
30 May 2021 09:15 Digos Philippines  0.2
30 May 2021 09:15 Malang Philippines  0.2
30 May 2021 09:15 Bulacan Philippines  0.2
30 May 2021 09:15 Kulagsing Philippines  0.2
30 May 2021 09:15 Santa Moria Philippines  0.2
30 May 2021 09:15 Kumasi Philippines  0.2
30 May 2021 09:15 Tubalan Philippines  0.2
30 May 2021 09:15 Lacaron Philippines  0.2
30 May 2021 10:00 Mauban Philippines  0.2
30 May 2021 10:00 San Jose Philippines  0.2
30 May 2021 10:00 Calamias Philippines  0.2
30 May 2021 10:15 Cabag Philippines  0.2
30 May 2021 08:30 Huangshagang China  0.2
30 May 2021 10:00 Lopez Philippines  0.2
30 May 2021 10:00 Talingting Philippines  0.2
30 May 2021 10:00 Calauag Philippines  0.2
30 May 2021 12:00 Shazikou China  0.2
30 May 2021 12:00 Wanggezhuang China  0.2
30 May 2021 12:00 Aoshanwei China  0.2
30 May 2021 10:15 Apad Lutao Philippines  0.2
30 May 2021 10:15 Capuluan Philippines  0.2
30 May 2021 10:15 Amontay Philippines  0.2
30 May 2021 10:15 Calaguikhik Philippines  0.2
30 May 2021 10:00 Pagbilao Philippines  0.2
30 May 2021 09:45 Qiganshi China  0.2
30 May 2021 09:45 Ju-shan-k'ou China  0.2
30 May 2021 09:45 Hai-yang-so China  0.2
30 May 2021 09:45 Nanhong China  0.2
30 May 2021 09:45 Baishatan China  0.2
30 May 2021 08:30 Shuangyangzha China  0.2
30 May 2021 09:15 Yong'an China  0.2
30 May 2021 09:15 Shankou China  0.2
30 May 2021 12:00 Yanweigang China  0.2
30 May 2021 12:00 Jiangjing China  0.2
30 May 2021 12:00 Haikou China  0.2
30 May 2021 12:00 Longtian China  0.2
30 May 2021 12:00 Gangtou China  0.2
30 May 2021 12:00 San Shah China  0.2
30 May 2021 12:00 Gaoshan China  0.2
30 May 2021 06:00 Dangjin Republic of Korea  0.1
30 May 2021 06:00 Chunghung-ni Republic of Korea  0.1
30 May 2021 06:00 Kooni Republic of Korea  0.1
30 May 2021 06:00 Ahyon-ni Republic of Korea  0.1
30 May 2021 06:00 Anjung-ni Republic of Korea  0.1
30 May 2021 08:45 Beimu China  0.1
30 May 2021 12:00 Wangcun China  0.1
30 May 2021 12:00 Wali China  0.1
30 May 2021 11:15 Xingcun China  0.1
30 May 2021 11:15 Ta-shan China  0.1
30 May 2021 11:15 Dashan China  0.1
30 May 2021 11:30 Fengcheng China  0.1
30 May 2021 06:00 Yuwotou China  0.1
30 May 2021 06:00 Lianhuashan China  0.1
30 May 2021 06:00 Huangge China  0.1
30 May 2021 06:00 Lianshan China  0.1
30 May 2021 06:00 Miaotou China  0.1
30 May 2021 06:00 Dashatou China  0.1
30 May 2021 06:00 Ruishengtou China  0.1
30 May 2021 06:00 Jiang'ouwei China  0.1
30 May 2021 06:00 Chang-p'eng China  0.1
30 May 2021 06:00 Machong China  0.1
30 May 2021 06:00 Fumunchai China  0.1
30 May 2021 06:00 Fumuntschai China  0.1
30 May 2021 06:00 Baihao China  0.1
30 May 2021 06:00 Taiping China  0.1
30 May 2021 10:15 Caluekan Philippines  0.1
30 May 2021 10:00 Langnuankou China  0.1
30 May 2021 10:00 Xiaoguan China  0.1
30 May 2021 10:00 Xilangnuan China  0.1
30 May 2021 06:00 Hasambong Republic of Korea  0.1
30 May 2021 06:00 Dagang China  0.1
30 May 2021 06:00 Huangpu China  0.1
30 May 2021 06:00 Shating China  0.1
30 May 2021 08:30 Ch'ien-tung-hsu China  0.1
30 May 2021 08:30 Qiandong China  0.1
30 May 2021 08:30 Jingzhou China  0.1
30 May 2021 08:30 Huanglong China  0.1
30 May 2021 08:30 Huanggang China  0.1
30 May 2021 08:30 Raoping China  0.1
30 May 2021 08:30 Zhelin China  0.1
30 May 2021 08:30 Shenao China  0.1
30 May 2021 06:00 Beiqigen China  0.1
30 May 2021 06:00 Beilungang China  0.1
30 May 2021 06:00 Sanshan China  0.1
30 May 2021 06:00 Ch'ai-ch'iao China  0.1
30 May 2021 06:00 Guoju China  0.1
30 May 2021 06:00 Chung-tse China  0.1
30 May 2021 06:00 Chiao-t'ou China  0.1
30 May 2021 12:00 Beicuo China  0.1
30 May 2021 12:00 Guanjing China  0.1
30 May 2021 12:00 Cao Yu China  0.1
30 May 2021 12:00 Qingfeng China  0.1
30 May 2021 12:00 Pingtan China  0.1
30 May 2021 12:00 Houtian China  0.1
30 May 2021 09:00 Dinghai China  0.1
30 May 2021 09:00 Ganlan China  0.1
30 May 2021 09:00 Dongsha China  0.1
30 May 2021 09:00 Gaoting China  0.1
30 May 2021 09:00 Nanfeng China  0.1
30 May 2021 09:00 Luomen China  0.1
30 May 2021 09:00 Changtu China  0.1
30 May 2021 09:00 Ta-chan China  0.1
30 May 2021 12:00 Chin-chia-k'ou China  0.1
30 May 2021 12:00 Guantou China  0.1
30 May 2021 12:00 Langqi China  0.1
30 May 2021 12:00 Changmen China  0.1
30 May 2021 12:00 Tantou China  0.1
30 May 2021 12:00 Fengwo China  0.1
30 May 2021 12:00 Yunlong China  0.1
30 May 2021 12:00 Tung-tai China  0.1
30 May 2021 12:00 Chin-feng China  0.1
30 May 2021 12:00 Baisheng China  0.1
30 May 2021 12:00 Guanban China  0.1
30 May 2021 10:15 Wuleidao China  0.1
30 May 2021 10:15 Zeku China  0.1
30 May 2021 11:45 Ts'ang-k'ou China  0.1
30 May 2021 11:45 Hsien-chia-chai China  0.1
30 May 2021 10:45 Sinsong Republic of Korea  0.1
30 May 2021 10:45 Chungjang Republic of Korea  0.1
30 May 2021 10:45 Tongmokp Republic of Korea  0.1
30 May 2021 10:45 Mongmal Republic of Korea  0.1
30 May 2021 10:45 Songch'on Republic of Korea  0.1
30 May 2021 10:45 Haksong-ni Republic of Korea  0.1
30 May 2021 10:45 Taechon-ni Republic of Korea  0.1
30 May 2021 06:00 Cholge Republic of Korea  0.1
30 May 2021 06:00 Chop'o Republic of Korea  0.1
30 May 2021 06:00 Goseong Republic of Korea  0.1
30 May 2021 06:00 Chamgae Republic of Korea  0.1
30 May 2021 06:00 Irun Republic of Korea  0.1
30 May 2021 11:45 Liuduo China  0.1
30 May 2021 11:45 Ta-yu-chien China  0.1
30 May 2021 10:15 Gaocun China  0.1
30 May 2021 07:30 Liulishe China  0.1
30 May 2021 07:30 Liu-tsao China  0.1
30 May 2021 07:30 Hsiao-yang-k'ou China  0.1
30 May 2021 07:30 Huangang China  0.1
30 May 2021 12:00 Guhuai China  0.1
30 May 2021 12:00 Chiang-t'ien China  0.1
30 May 2021 12:00 Chang-chiang China  0.1
30 May 2021 12:00 Wuhang China  0.1
30 May 2021 07:45 Chin-ch'ing China  0.1
30 May 2021 12:00 Gangwei China  0.1
30 May 2021 12:00 Songyu China  0.1
30 May 2021 12:00 Xucuo China  0.1
30 May 2021 12:00 Gulangyu China  0.1
30 May 2021 12:00 Xiamen China  0.1
30 May 2021 12:00 Chen-hai China  0.1
30 May 2021 12:00 Daomei China  0.1
30 May 2021 12:00 Dianqian China  0.1
30 May 2021 12:00 Jiangtou China  0.1
30 May 2021 12:00 Zhenhai China  0.1
30 May 2021 12:00 Hecuo China  0.1
30 May 2021 12:00 Aotou China  0.1
30 May 2021 12:00 An-ting Taiwan  0.1
30 May 2021 10:15 Kadena Japan  0.1
30 May 2021 10:15 Atsuta Japan  0.1
30 May 2021 10:15 Ishikawa Japan  0.1
30 May 2021 10:15 Henna Japan  0.1
30 May 2021 10:15 Kin Japan  0.1
30 May 2021 10:15 Ichi Japan  0.1
30 May 2021 10:15 Teima Japan  0.1
30 May 2021 10:15 Jinghaiwei China  0.1
30 May 2021 10:15 Huangshan China  0.1
30 May 2021 10:45 Yuanyaocun China  0.1
30 May 2021 10:45 Weihai China  0.1
30 May 2021 10:45 Zaobu China  0.1
30 May 2021 11:00 Jen-ho-chi China  0.1
30 May 2021 09:30 Laoshantun China  0.1
30 May 2021 09:30 Ning-ching-so China  0.1
30 May 2021 11:15 Xizhuang China  0.1
30 May 2021 06:00 Chonghyon-dong Republic of Korea  0.1
30 May 2021 06:00 Masan-ni Republic of Korea  0.1
30 May 2021 10:30 Pangas Philippines  0.1
30 May 2021 06:00 Wonha-ri Republic of Korea  0.1
30 May 2021 11:30 Ting-hai China  0.1
30 May 2021 06:00 Namyang Republic of Korea  0.1
30 May 2021 08:30 Kankan Malaysia  0.1
30 May 2021 08:30 Kampong Muhong Malaysia  0.1
30 May 2021 08:30 Kampong Kalong Darat Malaysia  0.1
30 May 2021 08:30 Kumbatang Malaysia  0.1
30 May 2021 08:30 Langkon Malaysia  0.1
30 May 2021 08:30 Kampong Radus Malaysia  0.1
30 May 2021 08:30 Tandek Malaysia  0.1
30 May 2021 08:30 Taritapan Malaysia  0.1
30 May 2021 08:30 Kpg Mempakad Malaysia  0.1
30 May 2021 10:00 Izumicho Japan  0.1
30 May 2021 10:00 Osaka Japan  0.1
30 May 2021 11:45 Qiandao China  0.1
30 May 2021 11:45 Ch'ih-shan-chi China  0.1
30 May 2021 11:45 Shidao China  0.1
30 May 2021 11:45 Dazhuang China  0.1
30 May 2021 11:00 Fuke Japan  0.1
30 May 2021 11:00 Tannowa Japan  0.1
30 May 2021 11:00 Bode Japan  0.1
30 May 2021 11:00 Tarui Japan  0.1
30 May 2021 11:00 Yoshimi Japan  0.1
30 May 2021 11:00 Izumi-Sano Japan  0.1
30 May 2021 11:00 Kishiwada Japan  0.1
30 May 2021 11:00 Shimomatsu Japan  0.1
30 May 2021 09:30 Chien-chen China  0.1
30 May 2021 09:30 Ch'ang-sha China  0.1
30 May 2021 09:30 Nankan China  0.1
30 May 2021 09:30 Beikan China  0.1
30 May 2021 07:00 Barceloneta Philippines  0.1
30 May 2021 07:00 Mandao Philippines  0.1
30 May 2021 07:00 Fundado Philippines  0.1
30 May 2021 07:00 Karigsa Philippines  0.1
30 May 2021 07:00 Calabanga Philippines  0.1
30 May 2021 06:00 Incheon Republic of Korea  0.1
30 May 2021 09:45 Jiurongcheng China  0.1
30 May 2021 09:45 Xiaogangnantou China  0.1
30 May 2021 09:45 Dashijiapo China  0.1
30 May 2021 09:45 Wolongcun China  0.1
30 May 2021 06:15 Magtang Philippines  0.1
30 May 2021 06:15 Lamon Philippines  0.1
30 May 2021 06:15 Union Philippines  0.1
30 May 2021 06:15 Tinambac Philippines  0.1
30 May 2021 06:15 Gongonan Philippines  0.1
30 May 2021 06:15 Mapid Philippines  0.1
30 May 2021 09:30 Chongam Republic of Korea  0.1
30 May 2021 09:30 Changsin Republic of Korea  0.1
30 May 2021 09:30 Tsuruho Republic of Korea  0.1
30 May 2021 09:30 Kikkan-ri Republic of Korea  0.1
30 May 2021 11:45 Aech'an-ni Republic of Korea  0.1
30 May 2021 09:00 Changho Republic of Korea  0.1
30 May 2021 09:00 Chonmak Republic of Korea  0.1
30 May 2021 06:30 Linao Philippines  0.1
30 May 2021 06:30 Bisagu Philippines  0.1
30 May 2021 06:30 Aparri Philippines  0.1
30 May 2021 06:30 Alilinu Philippines  0.1
30 May 2021 06:30 Punta Philippines  0.1
30 May 2021 06:30 Balza Philippines  0.1
30 May 2021 06:30 Buguey Philippines  0.1
30 May 2021 06:00 Chawol-li Republic of Korea  0.1
30 May 2021 06:00 Jindo Republic of Korea  0.1
30 May 2021 06:00 Aenang-ni Republic of Korea  0.1
30 May 2021 06:00 Changdong Republic of Korea  0.1
30 May 2021 06:00 Anjong Republic of Korea  0.1
30 May 2021 08:30 Tigaon Philippines  0.1
30 May 2021 08:30 Sagnay Philippines  0.1
30 May 2021 08:30 Adiagnao Philippines  0.1
30 May 2021 06:30 Sha-fan-chieh China  0.1
30 May 2021 06:30 Jinxiang China  0.1
30 May 2021 08:30 Fan Kwai Tong Hong Kong (China)  0.1
30 May 2021 08:30 Tai Long Wan Hong Kong (China)  0.1
30 May 2021 08:30 Shekou China  0.1
30 May 2021 08:30 Lau Fau Sha Hong Kong (China)  0.1
30 May 2021 08:30 Ngau Kwu Long Hong Kong (China)  0.1
30 May 2021 08:30 Castle Peak New Town Hong Kong (China)  0.1
30 May 2021 08:30 Tuen Mun Hong Kong (China)  0.1
30 May 2021 08:30 Ham Tin Hong Kong (China)  0.1
30 May 2021 08:30 Yuen Long Hong Kong (China)  0.1
30 May 2021 08:30 Sz Pak Hong Kong (China)  0.1
30 May 2021 08:30 Nam Wan Hong Kong (China)  0.1
30 May 2021 08:30 Hoi Pa Hong Kong (China)  0.1
30 May 2021 08:30 Lo Tik Wan Hong Kong (China)  0.1
30 May 2021 11:30 Oejongsan Republic of Korea  0.1
30 May 2021 09:45 Janghang Republic of Korea  0.1
30 May 2021 09:45 Okhu Republic of Korea  0.1
30 May 2021 09:45 Gunsan Republic of Korea  0.1
30 May 2021 07:30 Chelim China  0.1
30 May 2021 11:15 Cheng'anwei China  0.1
30 May 2021 11:15 Sha-ching China  0.1
30 May 2021 11:15 Heping China  0.1
30 May 2021 11:15 Nantou China  0.1
30 May 2021 11:30 Cwangcheon Republic of Korea  0.1
30 May 2021 11:30 Dongmun Republic of Korea  0.1
30 May 2021 10:15 Tung-ch'ung China  0.1
30 May 2021 10:15 Xinan China  0.1
30 May 2021 10:15 Xiahu China  0.1
30 May 2021 10:15 Da'ao China  0.1
30 May 2021 10:15 Changchun China  0.1
30 May 2021 10:15 Luxia China  0.1
30 May 2021 12:00 Daxu China  0.1
30 May 2021 12:00 Danmen China  0.1
30 May 2021 08:00 Shirasuka Japan  0.1
30 May 2021 08:00 Arai Japan  0.1
30 May 2021 08:00 Murakushi Japan  0.1
30 May 2021 08:00 Maisaka Japan  0.1
30 May 2021 08:00 Takatsuka Japan  0.1
30 May 2021 06:45 Houzhai China  0.1
30 May 2021 06:45 Nanao China  0.1
30 May 2021 12:00 Wuqu China  0.1
30 May 2021 12:00 Yacheng China  0.1
30 May 2021 06:15 Santa Maria Philippines  0.1
30 May 2021 06:15 Zamboanga Philippines  0.1
30 May 2021 06:15 Boalan Philippines  0.1
30 May 2021 06:15 Culianan Philippines  0.1
30 May 2021 06:15 Masinloc Philippines  0.1
30 May 2021 06:15 Manicahan Philippines  0.1
30 May 2021 06:15 Bolong Philippines  0.1
30 May 2021 06:15 Curuan Philippines  0.1
30 May 2021 10:15 Kobe Japan  0.1
30 May 2021 10:00 Binauangan Philippines  0.1
30 May 2021 10:00 Mactang Philippines  0.1
30 May 2021 06:30 Apis Philippines  0.1
30 May 2021 06:30 San Jose Philippines  0.1
30 May 2021 06:30 Bobon Philippines  0.1
30 May 2021 06:30 Catarman Philippines  0.1
30 May 2021 06:30 Capayan Philippines  0.1
30 May 2021 06:30 Maquinalo Philippines  0.1
30 May 2021 10:00 Izumi Japan  0.1