Overall Orange alert Tropical Cyclone for CEMPAKA-21
in China
19 Jul 2021 00 UTC
click on to select bulletin time
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 ECMWF
Exposed countries China
Exposed population No people in Category 1 or higher
Maximum wind speed 50 km/h
Maximum storm surge 0.4 m (20 Jul 02:45 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
ECMWF Current 50 km/h 0.4 m 157 mm 0.5
ECMWF Overall 72 km/h 0.8 m 923 mm 0.5

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

TOP

Wind

72 km/h

Up to 10 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 19 Jul 2021 00:00 UTC
CategoryCountryPopulation 
Tropical StormChina13,705 

See TC classification SSHS


Wind Impact Timeline

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


Alert N° 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 18 Jul 2021 00:00 43 - - - - - - -
GREEN 2 18 Jul 2021 12:00 50 - - - - - - -
GREEN 3 19 Jul 2021 00:00 65 -
- - - - - China
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 19 Jul 2021 00:00 UTC
LevelCountryPopulation 
250-500 mmChina, Philippines3,413,462
+
China3,411,547 
Philippines1,915 
100-250 mmChina, Taiwan, Hong Kong, Vietnam, Macao, Laos, Philippines, Thailand, Cambodia32,283,617
+
China22,535,001 
Taiwan1,690,865 
Vietnam3,614 
Hong Kong3,988,594 
Macao579,652 
Laos48,784 
Philippines3,436,593 
Thailand508 
Cambodia01 
50-100 mmChina, Taiwan, Vietnam, Hong Kong, Laos, Philippines, Thailand, Cambodia67,835,498
+
China54,712,216 
Taiwan1,633,919 
Vietnam1,692,049 
Hong Kong3,337,886 
Laos1,070,622 
Philippines4,688,299 
Thailand655,091 
Cambodia45,413 

Rain Impact Timeline

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


Alert N° Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 18 Jul 2021 00:00 100 -
- - - - - China, Vietnam, Philippines
Blue 2 18 Jul 2021 12:00 142 60 thousand
- - - - China, Vietnam, Laos
Blue 3 19 Jul 2021 00:00 479 35.7 million
- - - China, Taiwan, Vietnam, Hong Kong, Macao, Laos, Philippines, Thailand, Cambodia




Impact estimation for the next 72h
TOP

StormSurge

0.4 m

The maximum Storm surge height is  0.4m in Nanping, China. This height is estimated for 20 Jul 2021 02:45 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 19 Jul 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
20 Jul 2021 02:45 Nanping China  0.4
20 Jul 2021 02:45 Xiazha China  0.4
20 Jul 2021 02:45 Maogang China  0.4
20 Jul 2021 02:45 Macau Macau (China)  0.4
20 Jul 2021 02:45 Taipa Macau (China)  0.4
20 Jul 2021 02:45 Coloane Macau (China)  0.4
20 Jul 2021 02:45 Heung chau China  0.4
20 Jul 2021 02:45 Baijiao China  0.4
20 Jul 2021 02:45 San-tsao China  0.4
20 Jul 2021 20:30 Luewei China  0.4
20 Jul 2021 20:30 Shalan China  0.4
20 Jul 2021 20:30 Shadi China  0.4
20 Jul 2021 20:30 Dalangwan China  0.4
20 Jul 2021 14:30 Min-chung China  0.4
20 Jul 2021 14:30 Wan-ch'ing-sha China  0.4
20 Jul 2021 14:30 Qishan China  0.4
20 Jul 2021 14:30 Cheng'anwei China  0.4
20 Jul 2021 13:00 Cuihengcun China  0.4
20 Jul 2021 13:00 Ch'i-ao China  0.4
20 Jul 2021 17:15 Chixi China  0.4
20 Jul 2021 17:15 Huangchong China  0.4
20 Jul 2021 17:15 Meige China  0.4
20 Jul 2021 17:15 Mashan China  0.4
20 Jul 2021 17:15 Mei-ko China  0.4
20 Jul 2021 17:15 Pingsha China  0.4
20 Jul 2021 17:15 Doumen China  0.4
20 Jul 2021 17:15 Ching-an China  0.4
20 Jul 2021 17:15 Xiaolin China  0.4
20 Jul 2021 16:45 Huangge China  0.4
20 Jul 2021 16:45 Jiang'ouwei China  0.4
20 Jul 2021 16:45 Fumunchai China  0.4
20 Jul 2021 16:45 Fumuntschai China  0.4
20 Jul 2021 16:45 Baihao China  0.4
20 Jul 2021 16:45 Taiping China  0.4
20 Jul 2021 16:45 Sha-ching China  0.4
20 Jul 2021 16:45 Heping China  0.4
19 Jul 2021 16:15 Dayang China  0.4
19 Jul 2021 16:15 Guanghai China  0.4
20 Jul 2021 02:15 Fan Kwai Tong Hong Kong (China)  0.4
20 Jul 2021 02:15 Nantou China  0.4
19 Jul 2021 07:00 Tiantou China  0.3
19 Jul 2021 07:00 Tonggu China  0.3
20 Jul 2021 02:30 Lajiwei China  0.3
20 Jul 2021 20:30 Chen-hai China  0.3
21 Jul 2021 17:30 San Shah China  0.3
21 Jul 2021 17:30 Gaoshan China  0.3
21 Jul 2021 17:30 Ta-ch'iu China  0.3
21 Jul 2021 17:30 Beicuo China  0.3
21 Jul 2021 17:30 Guanjing China  0.3
21 Jul 2021 17:30 Cao Yu China  0.3
21 Jul 2021 17:30 Qingfeng China  0.3
21 Jul 2021 17:30 Pingtan China  0.3
20 Jul 2021 21:00 Chiu-chieh China  0.3
20 Jul 2021 21:00 Shekou China  0.3
21 Jul 2021 11:15 Beidou China  0.3
21 Jul 2021 11:15 Shen-ching China  0.3
20 Jul 2021 01:45 Tai Long Wan Hong Kong (China)  0.3
20 Jul 2021 01:45 Lau Fau Sha Hong Kong (China)  0.3
20 Jul 2021 01:15 Ngau Kwu Long Hong Kong (China)  0.3
20 Jul 2021 01:15 Castle Peak New Town Hong Kong (China)  0.3
20 Jul 2021 01:15 Tuen Mun Hong Kong (China)  0.3
20 Jul 2021 01:30 Ham Tin Hong Kong (China)  0.3
20 Jul 2021 01:45 Wanshan China  0.3
19 Jul 2021 15:45 Doushan China  0.3
20 Jul 2021 01:15 Yuen Long Hong Kong (China)  0.2
20 Jul 2021 01:15 Sz Pak Hong Kong (China)  0.2
20 Jul 2021 01:00 Yuen Long Hong Kong (China)  0.2
20 Jul 2021 01:00 Tai Po Hong Kong (China)  0.2
20 Jul 2021 01:00 Tai Po Industrial Estate Hong Kong (China)  0.2
20 Jul 2021 01:00 Fung Yuen Hong Kong (China)  0.2
20 Jul 2021 01:00 Dabu Hong Kong (China)  0.2
20 Jul 2021 01:00 Sha Tau Kok China  0.2
20 Jul 2021 01:00 Cheung Kang Hong Kong (China)  0.2
20 Jul 2021 01:00 Imtin China  0.2
20 Jul 2021 01:00 Cheung Wo Hong Kong (China)  0.2
20 Jul 2021 01:00 Pak Sha Au Hong Kong (China)  0.2
20 Jul 2021 01:00 Long Ke Hong Kong (China)  0.2
20 Jul 2021 01:00 Khitschhung China  0.2
20 Jul 2021 00:45 Cheung Sha Wan Hong Kong (China)  0.2
20 Jul 2021 00:45 Tsz Wa Chan Hong Kong (China)  0.2
20 Jul 2021 00:45 Yau Ma Po Hong Kong (China)  0.2
20 Jul 2021 00:45 Sai Kung Hong Kong (China)  0.2
21 Jul 2021 17:45 Houtian China  0.2
19 Jul 2021 09:15 Dapeng China  0.2
19 Jul 2021 09:15 Taipang China  0.2
19 Jul 2021 09:15 Shagang China  0.2
19 Jul 2021 09:15 Aotou China  0.2
19 Jul 2021 09:15 Luzui China  0.2
19 Jul 2021 09:30 Hsia-yung China  0.2
19 Jul 2021 09:45 Renshan China  0.2
19 Jul 2021 09:45 Jen-shan China  0.2
19 Jul 2021 09:45 Fanhe China  0.2
19 Jul 2021 09:45 Pinghai China  0.2
19 Jul 2021 08:15 Nam Wan Hong Kong (China)  0.2
19 Jul 2021 08:15 Hoi Pa Hong Kong (China)  0.2
19 Jul 2021 08:15 Lo Tik Wan Hong Kong (China)  0.2
19 Jul 2021 08:15 Tsuen Wan Hong Kong (China)  0.2
19 Jul 2021 08:15 Lo So Shing Hong Kong (China)  0.2
19 Jul 2021 08:15 Ha Kwai Chung Hong Kong (China)  0.2
19 Jul 2021 08:15 Pok Fu Lam Hong Kong (China)  0.2
19 Jul 2021 08:15 Wa Fu Estate Hong Kong (China)  0.2
19 Jul 2021 08:15 Kennedy Town Hong Kong (China)  0.2
19 Jul 2021 08:15 Aberdeen Hong Kong (China)  0.2
19 Jul 2021 08:15 Won Hang Hong Kong (China)  0.2
19 Jul 2021 08:15 Tain Sha Tsui Hong Kong (China)  0.2
19 Jul 2021 08:15 Central Hong Kong (China)  0.2
19 Jul 2021 08:15 Kowloon Hong Kong (China)  0.2
19 Jul 2021 08:15 Wan Chai Hong Kong (China)  0.2
19 Jul 2021 08:15 Chung Hom Kok Hong Kong (China)  0.2
19 Jul 2021 08:15 North Point Hong Kong (China)  0.2
19 Jul 2021 08:15 Chek Chue Hong Kong (China)  0.2
19 Jul 2021 08:15 Crocodile Hill Hong Kong (China)  0.2
19 Jul 2021 09:00 Houmen China  0.2
19 Jul 2021 21:30 Caotan China  0.2
19 Jul 2021 09:45 Jiesheng China  0.2
19 Jul 2021 09:45 Tianqian China  0.2
19 Jul 2021 09:45 Zhelang China  0.2
19 Jul 2021 09:15 Gangkou China  0.2
19 Jul 2021 08:15 Tai Tam Hong Kong (China)  0.2
19 Jul 2021 08:15 Stanley Hong Kong (China)  0.2
19 Jul 2021 08:15 San Wan Ho Shau Hong Kong (China)  0.2
19 Jul 2021 08:15 Yau Tong Hong Kong (China)  0.2
19 Jul 2021 08:15 Rennie's Mill Hong Kong (China)  0.2
19 Jul 2021 08:15 A Kung Ngam Hong Kong (China)  0.2
19 Jul 2021 08:15 Chai Wan Hong Kong (China)  0.2
19 Jul 2021 08:15 Sau Mau Ping Hong Kong (China)  0.2
19 Jul 2021 08:15 Hok Tsui Wan Hong Kong (China)  0.2
19 Jul 2021 08:15 Chik Sha Hong Kong (China)  0.2
19 Jul 2021 08:15 Hang Hau Hong Kong (China)  0.2
19 Jul 2021 08:15 Tei Tong Tsui Hong Kong (China)  0.2
19 Jul 2021 08:15 Tai Wan Tau Hong Kong (China)  0.2
19 Jul 2021 22:15 Yingluo China  0.2
19 Jul 2021 22:15 Longtousha China  0.2
19 Jul 2021 09:15 Magong China  0.2
19 Jul 2021 09:45 Jizhongtuo China  0.1
19 Jul 2021 23:30 Bailong China  0.1
19 Jul 2021 23:30 Beimu China  0.1
19 Jul 2021 23:30 Yong'an China  0.1
19 Jul 2021 23:30 Shankou China  0.1
19 Jul 2021 09:45 Shanwei China  0.1
20 Jul 2021 00:00 Yingzai China  0.1
21 Jul 2021 01:00 Paipu China  0.1
21 Jul 2021 01:00 Baimajing China  0.1
21 Jul 2021 01:00 Hsin-ying China  0.1
21 Jul 2021 01:00 Eman China  0.1
21 Jul 2021 01:00 Taan China  0.1
21 Jul 2021 01:00 Hsin-chou China  0.1
21 Jul 2021 14:15 Dagou China  0.1
21 Jul 2021 14:15 Hsin-chou China  0.1
19 Jul 2021 20:15 Ch'i-shui China  0.1
19 Jul 2021 08:45 Dongjian China  0.1
19 Jul 2021 08:45 Badongxu China  0.1
19 Jul 2021 08:45 Houhu China  0.1
19 Jul 2021 08:45 Bengtang China  0.1
19 Jul 2021 08:45 Houhai China  0.1
19 Jul 2021 08:45 Baisha China  0.1
19 Jul 2021 08:45 Shaoyao China  0.1
19 Jul 2021 08:45 Xingyou China  0.1
19 Jul 2021 08:45 Huangwu China  0.1
19 Jul 2021 08:45 Nayan China  0.1
19 Jul 2021 08:45 Doulongcun China  0.1
19 Jul 2021 03:15 Diancheng China  0.1
19 Jul 2021 03:15 Rudong China  0.1
21 Jul 2021 01:00 Guangcun China  0.1
21 Jul 2021 01:00 Xinxing China  0.1
19 Jul 2021 22:30 Beihai China  0.1
19 Jul 2021 22:30 Gaode China  0.1
19 Jul 2021 22:30 Guchengling China  0.1
21 Jul 2021 14:00 Jiangcheng China  0.1
21 Jul 2021 14:00 Baipu China  0.1
19 Jul 2021 09:45 Jieshi China  0.1
19 Jul 2021 21:00 Haikang China  0.1
19 Jul 2021 02:45 Pinggang China  0.1
19 Jul 2021 06:45 Guanchang China  0.1
19 Jul 2021 06:45 Dongli China  0.1
19 Jul 2021 06:45 Tung-li China  0.1
19 Jul 2021 06:45 Jinhe China  0.1
19 Jul 2021 06:45 Wai-lo China  0.1
19 Jul 2021 20:30 Guanjing China  0.1
19 Jul 2021 20:30 Hsi-ch'ang-hsu China  0.1
19 Jul 2021 20:30 Hsi-ch'ang China  0.1
19 Jul 2021 20:30 Shagang China  0.1
19 Jul 2021 20:30 Dangjiang China  0.1
19 Jul 2021 22:30 Bailong China  0.1
19 Jul 2021 22:30 Jiangshan China  0.1
19 Jul 2021 22:30 Baishawan China  0.1
19 Jul 2021 22:30 Fangcheng China  0.1
19 Jul 2021 22:30 Gongche China  0.1
19 Jul 2021 22:30 Ch'i-sha China  0.1
19 Jul 2021 14:00 Dianbai China  0.1
19 Jul 2021 14:00 Danchang China  0.1
19 Jul 2021 14:00 Magang China  0.1
19 Jul 2021 20:45 Qianjiang China  0.1
19 Jul 2021 23:15 Mong Cai Vietnam  0.1
19 Jul 2021 23:15 Jiangpingxu China  0.1
19 Jul 2021 23:15 Jiangping China  0.1
19 Jul 2021 23:15 Wanwei China  0.1
19 Jul 2021 19:00 Liu-sha-ying China  0.1
19 Jul 2021 02:45 Lengzilin China  0.1
19 Jul 2021 20:15 Longmen China  0.1
19 Jul 2021 20:15 Dafanpo China  0.1
19 Jul 2021 20:15 Hsi-niu-chiao China  0.1
19 Jul 2021 20:15 Pingshan China  0.1
19 Jul 2021 19:15 Shuiwei China  0.1
19 Jul 2021 21:45 Qiaotou China  0.1
19 Jul 2021 03:00 Shangyang China  0.1
19 Jul 2021 03:00 Santouzui China  0.1
19 Jul 2021 03:00 Hsi-t'ou China  0.1
19 Jul 2021 09:15 Hudong China  0.1
19 Jul 2021 19:15 Liusha China  0.1
19 Jul 2021 19:15 Mai-ch'en-hsu China  0.1
19 Jul 2021 14:00 Shuidong China  0.1
19 Jul 2021 14:00 Ch'i-ching China  0.1
19 Jul 2021 22:30 Maichen China  0.1
19 Jul 2021 04:45 Chengcun China  0.1
19 Jul 2021 13:45 Huangpo China  0.1
19 Jul 2021 13:45 Chiu-wu-ch'uan China  0.1
19 Jul 2021 13:45 Hai-lu China  0.1
20 Jul 2021 22:45 Gancheng China  0.1
20 Jul 2021 22:45 Banqiao China  0.1
20 Jul 2021 22:45 Longyou China  0.1
20 Jul 2021 22:45 Lingtou China  0.1
19 Jul 2021 10:30 Dongshan China  0.1
19 Jul 2021 10:30 Zhanjiang China  0.1
19 Jul 2021 10:30 Ma-hsieh China  0.1
21 Jul 2021 00:00 Gia Luan Vietnam  0.1
21 Jul 2021 00:00 Dong Vang Vietnam  0.1
21 Jul 2021 00:00 Hon Gay Vietnam  0.1
21 Jul 2021 00:00 Lang Bang Vietnam  0.1
21 Jul 2021 00:00 Ha Tou Vietnam  0.1
20 Jul 2021 23:00 Basuo China  0.1
19 Jul 2021 13:45 Meilu China  0.1
19 Jul 2021 12:30 Xianmai China  0.1
19 Jul 2021 12:30 Longshe China  0.1
19 Jul 2021 09:45 Da Nang Vietnam  0.1
19 Jul 2021 09:45 Xom Da Me Vietnam  0.1
19 Jul 2021 09:45 Mui Da Nang Vietnam  0.1
19 Jul 2021 09:45 Hoi An Vietnam  0.1
19 Jul 2021 03:15 Potou China  0.1
19 Jul 2021 19:00 Bili China  0.1
19 Jul 2021 19:00 Chien-chiang China  0.1
19 Jul 2021 19:00 Ting-hai China  0.1
19 Jul 2021 19:00 Anhai China  0.1
19 Jul 2021 19:00 Tung-ch'ung China  0.1
19 Jul 2021 20:30 Guhuai China  0.1
19 Jul 2021 20:30 Chiang-t'ien China  0.1
19 Jul 2021 20:30 Chang-chiang China  0.1
20 Jul 2021 23:00 Duntou China  0.1
19 Jul 2021 22:15 Vinh Thuc Vietnam  0.1
19 Jul 2021 11:45 Huiwen China  0.1
19 Jul 2021 11:45 Chen Lan China  0.1
19 Jul 2021 11:45 Qinglan China  0.1
19 Jul 2021 19:15 Xiahu China  0.1
19 Jul 2021 19:15 Da'ao China  0.1
19 Jul 2021 19:15 Changchun China  0.1
19 Jul 2021 19:15 Luxia China  0.1
19 Jul 2021 17:15 Changqingwei China  0.1
19 Jul 2021 17:15 Shenquan China  0.1