Overall Orange alert Tropical Cyclone for CEMPAKA-21
in China
19 Jul 2021 12 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 Taiwan
Exposed population No people in Category 1 or higher
Maximum wind speed 50 km/h
Maximum storm surge 0.5 m (20 Jul 06:15 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 0.5 m 130 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 50 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 12:00 UTC
CategoryCountryPopulation 
Tropical StormTaiwan51,526 

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 50 - - - - - - -
GREEN 4 19 Jul 2021 12:00 76 -
- - - - - Taiwan
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 19 Jul 2021 12:00 UTC
LevelCountryPopulation 
250-500 mmChina, Philippines3,715,461
+
China3,699,763 
Philippines15,697 
100-250 mmChina, Taiwan, Macao, Laos, Philippines, Vietnam, Cambodia22,747,461
+
China18,413,540 
Taiwan10,816 
Vietnam23,753 
Macao579,652 
Laos36,748 
Philippines3,682,948 
Cambodia01 
50-100 mmChina, Taiwan, Vietnam, Hong Kong, Laos, Philippines, Thailand, Cambodia50,487,395
+
China40,806,548 
Taiwan490,458 
Vietnam1,209,894 
Hong Kong3,084,076 
Laos528,797 
Philippines3,706,526 
Thailand614,352 
Cambodia46,741 

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 00:00 157 -
- - - - - China, Vietnam, Philippines, Laos
Blue 4 19 Jul 2021 12:00 384 26.5 million
- - - China, Taiwan, Vietnam, Hong Kong, Macao, Laos, Philippines, Thailand, Cambodia




Impact estimation for the next 72h
TOP

StormSurge

0.5 m

The maximum Storm surge height is  0.5m in Shalan, China. This height is estimated for 20 Jul 2021 06:15 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 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
20 Jul 2021 06:15 Shalan China  0.5
20 Jul 2021 06:15 Dayang China  0.5
20 Jul 2021 06:15 Dalangwan China  0.5
20 Jul 2021 06:15 Guanghai China  0.5
22 Jul 2021 11:30 San Shah China  0.4
22 Jul 2021 11:30 Gaoshan China  0.4
22 Jul 2021 11:30 Ta-ch'iu China  0.4
22 Jul 2021 11:30 Beicuo China  0.4
22 Jul 2021 11:30 Guanjing China  0.4
22 Jul 2021 11:30 Cao Yu China  0.4
22 Jul 2021 11:30 Qingfeng China  0.4
22 Jul 2021 11:30 Pingtan China  0.4
20 Jul 2021 08:15 Doushan China  0.4
20 Jul 2021 08:15 Tiantou China  0.4
20 Jul 2021 08:15 Tonggu China  0.4
20 Jul 2021 08:15 Chixi China  0.4
20 Jul 2021 06:00 Luewei China  0.4
20 Jul 2021 06:00 Shadi China  0.4
20 Jul 2021 10:30 Huangchong China  0.4
20 Jul 2021 10:30 Meige China  0.4
20 Jul 2021 10:30 Mashan China  0.4
20 Jul 2021 10:30 Mei-ko China  0.4
20 Jul 2021 10:30 Pingsha China  0.4
20 Jul 2021 10:30 Doumen China  0.4
20 Jul 2021 09:45 Ching-an China  0.4
20 Jul 2021 09:45 Xiaolin China  0.4
20 Jul 2021 16:15 Beidou China  0.4
20 Jul 2021 16:15 Chen-hai China  0.4
20 Jul 2021 16:15 Shen-ching China  0.4
22 Jul 2021 02:30 Yingluo China  0.4
22 Jul 2021 02:30 Caotan China  0.4
22 Jul 2021 02:30 Longtousha China  0.4
22 Jul 2021 02:30 Yingzai China  0.4
22 Jul 2021 01:45 Yong'an China  0.3
22 Jul 2021 01:45 Shankou China  0.3
20 Jul 2021 11:00 Cuihengcun China  0.3
20 Jul 2021 11:00 Min-chung China  0.3
20 Jul 2021 11:00 Wan-ch'ing-sha China  0.3
20 Jul 2021 11:00 Qishan China  0.3
20 Jul 2021 11:00 Cheng'anwei China  0.3
20 Jul 2021 11:00 Ch'i-ao China  0.3
20 Jul 2021 12:00 Xiazha China  0.3
20 Jul 2021 08:45 Huangge China  0.3
20 Jul 2021 08:45 Jiang'ouwei China  0.3
20 Jul 2021 08:45 Fumunchai China  0.3
20 Jul 2021 08:45 Fumuntschai China  0.3
20 Jul 2021 08:45 Baihao China  0.3
20 Jul 2021 08:45 Taiping China  0.3
20 Jul 2021 08:45 Sha-ching China  0.3
20 Jul 2021 08:45 Heping China  0.3
22 Jul 2021 02:15 Bailong China  0.3
22 Jul 2021 02:15 Beimu China  0.3
19 Jul 2021 12:00 Nanping China  0.3
19 Jul 2021 12:00 Maogang China  0.3
19 Jul 2021 12:00 Macau Macau (China)  0.3
19 Jul 2021 12:00 Taipa Macau (China)  0.3
19 Jul 2021 12:00 Coloane Macau (China)  0.3
19 Jul 2021 12:00 Heung chau China  0.3
20 Jul 2021 04:00 Baijiao China  0.3
20 Jul 2021 04:00 San-tsao China  0.3
20 Jul 2021 05:00 Fan Kwai Tong Hong Kong (China)  0.3
20 Jul 2021 05:00 Nantou China  0.3
22 Jul 2021 12:00 Houtian China  0.3
20 Jul 2021 04:30 Chiu-chieh China  0.3
20 Jul 2021 04:30 Shekou China  0.3
20 Jul 2021 04:30 Lau Fau Sha Hong Kong (China)  0.3
20 Jul 2021 04:30 Ngau Kwu Long Hong Kong (China)  0.3
20 Jul 2021 04:30 Castle Peak New Town Hong Kong (China)  0.3
20 Jul 2021 04:30 Tuen Mun Hong Kong (China)  0.3
20 Jul 2021 04:15 Tai Long Wan Hong Kong (China)  0.2
20 Jul 2021 04:15 Ham Tin Hong Kong (China)  0.2
20 Jul 2021 04:30 Yuen Long Hong Kong (China)  0.2
20 Jul 2021 04:30 Sz Pak Hong Kong (China)  0.2
20 Jul 2021 04:15 Lajiwei China  0.2
19 Jul 2021 12:00 Wanshan China  0.2
22 Jul 2021 00:30 Hsi-ch'ang-hsu China  0.2
22 Jul 2021 00:30 Hsi-ch'ang China  0.2
22 Jul 2021 00:30 Shagang China  0.2
22 Jul 2021 00:30 Beihai China  0.2
22 Jul 2021 00:30 Dangjiang China  0.2
22 Jul 2021 00:30 Gaode China  0.2
22 Jul 2021 00:30 Guchengling China  0.2
22 Jul 2021 00:30 Qianjiang China  0.2
20 Jul 2021 16:00 Dagou China  0.2
20 Jul 2021 16:00 Hsin-chou China  0.2
20 Jul 2021 16:00 Jiangcheng China  0.2
20 Jul 2021 16:00 Baipu China  0.2
20 Jul 2021 13:00 Yuen Long Hong Kong (China)  0.2
20 Jul 2021 13:00 Tai Po Hong Kong (China)  0.2
20 Jul 2021 13:00 Tai Po Industrial Estate Hong Kong (China)  0.2
20 Jul 2021 13:00 Fung Yuen Hong Kong (China)  0.2
20 Jul 2021 13:00 Dabu Hong Kong (China)  0.2
20 Jul 2021 13:00 Sha Tau Kok China  0.2
20 Jul 2021 13:00 Cheung Kang Hong Kong (China)  0.2
20 Jul 2021 13:00 Imtin China  0.2
20 Jul 2021 13:00 Cheung Wo Hong Kong (China)  0.2
20 Jul 2021 13:00 Pak Sha Au Hong Kong (China)  0.2
20 Jul 2021 13:00 Long Ke Hong Kong (China)  0.2
20 Jul 2021 13:00 Khitschhung China  0.2
20 Jul 2021 13:00 Cheung Sha Wan Hong Kong (China)  0.2
20 Jul 2021 13:00 Tsz Wa Chan Hong Kong (China)  0.2
20 Jul 2021 13:00 Yau Ma Po Hong Kong (China)  0.2
20 Jul 2021 13:00 Sai Kung Hong Kong (China)  0.2
19 Jul 2021 15:00 Dapeng China  0.2
19 Jul 2021 15:00 Taipang China  0.2
19 Jul 2021 15:00 Shagang China  0.2
19 Jul 2021 15:00 Aotou China  0.2
19 Jul 2021 15:00 Luzui China  0.2
20 Jul 2021 15:45 Pinggang China  0.2
21 Jul 2021 01:00 Paipu China  0.2
21 Jul 2021 01:00 Baimajing China  0.2
21 Jul 2021 01:00 Hsin-ying China  0.2
21 Jul 2021 01:00 Eman China  0.2
21 Jul 2021 01:00 Taan China  0.2
21 Jul 2021 01:00 Hsin-chou China  0.2
19 Jul 2021 12:00 Nam Wan Hong Kong (China)  0.2
19 Jul 2021 12:00 Hoi Pa Hong Kong (China)  0.2
19 Jul 2021 12:00 Lo Tik Wan Hong Kong (China)  0.2
19 Jul 2021 12:00 Tsuen Wan Hong Kong (China)  0.2
19 Jul 2021 12:00 Lo So Shing Hong Kong (China)  0.2
19 Jul 2021 12:00 Ha Kwai Chung Hong Kong (China)  0.2
19 Jul 2021 12:00 Pok Fu Lam Hong Kong (China)  0.2
19 Jul 2021 12:00 Wa Fu Estate Hong Kong (China)  0.2
19 Jul 2021 12:00 Kennedy Town Hong Kong (China)  0.2
19 Jul 2021 12:00 Aberdeen Hong Kong (China)  0.2
19 Jul 2021 12:00 Won Hang Hong Kong (China)  0.2
19 Jul 2021 12:00 Tain Sha Tsui Hong Kong (China)  0.2
19 Jul 2021 12:00 Central Hong Kong (China)  0.2
19 Jul 2021 12:00 Kowloon Hong Kong (China)  0.2
19 Jul 2021 12:00 Wan Chai Hong Kong (China)  0.2
19 Jul 2021 12:00 Chung Hom Kok Hong Kong (China)  0.2
19 Jul 2021 12:00 North Point Hong Kong (China)  0.2
19 Jul 2021 12:00 Chek Chue Hong Kong (China)  0.2
19 Jul 2021 12:00 Crocodile Hill Hong Kong (China)  0.2
19 Jul 2021 22:45 Mong Cai Vietnam  0.2
19 Jul 2021 22:45 Jiangpingxu China  0.2
19 Jul 2021 22:45 Jiangping China  0.2
19 Jul 2021 22:45 Wanwei China  0.2
21 Jul 2021 22:30 Ch'i-shui China  0.2
21 Jul 2021 22:30 Haikang China  0.2
19 Jul 2021 23:00 Bailong China  0.2
19 Jul 2021 23:00 Jiangshan China  0.2
19 Jul 2021 19:15 Hsia-yung China  0.1
19 Jul 2021 19:15 Renshan China  0.1
19 Jul 2021 19:15 Jen-shan China  0.1
19 Jul 2021 19:15 Fanhe China  0.1
19 Jul 2021 19:15 Pinghai China  0.1
19 Jul 2021 19:00 Houmen 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
20 Jul 2021 23:30 Guangcun China  0.1
20 Jul 2021 23:30 Xinxing China  0.1
19 Jul 2021 22:00 Shuiwei China  0.1
19 Jul 2021 22:00 Liu-sha-ying China  0.1
19 Jul 2021 22:00 Liusha China  0.1
19 Jul 2021 22:00 Mai-ch'en-hsu China  0.1
19 Jul 2021 17:45 Tai Tam Hong Kong (China)  0.1
19 Jul 2021 17:45 Stanley Hong Kong (China)  0.1
19 Jul 2021 17:45 San Wan Ho Shau Hong Kong (China)  0.1
19 Jul 2021 17:45 Yau Tong Hong Kong (China)  0.1
19 Jul 2021 17:45 Rennie's Mill Hong Kong (China)  0.1
19 Jul 2021 17:45 A Kung Ngam Hong Kong (China)  0.1
19 Jul 2021 17:45 Chai Wan Hong Kong (China)  0.1
19 Jul 2021 17:45 Sau Mau Ping Hong Kong (China)  0.1
19 Jul 2021 17:45 Hok Tsui Wan Hong Kong (China)  0.1
19 Jul 2021 17:45 Chik Sha Hong Kong (China)  0.1
19 Jul 2021 17:45 Hang Hau Hong Kong (China)  0.1
19 Jul 2021 17:45 Tei Tong Tsui Hong Kong (China)  0.1
19 Jul 2021 17:45 Tai Wan Tau Hong Kong (China)  0.1
19 Jul 2021 23:15 Guanjing China  0.1
19 Jul 2021 18:45 Magong China  0.1
19 Jul 2021 22:00 Qiaotou China  0.1
19 Jul 2021 23:00 Hsi-niu-chiao China  0.1
19 Jul 2021 23:00 Pingshan China  0.1
19 Jul 2021 22:30 Maichen China  0.1
19 Jul 2021 22:15 Longmen China  0.1
19 Jul 2021 23:30 Dafanpo China  0.1
19 Jul 2021 13:45 Jiesheng China  0.1
19 Jul 2021 13:45 Tianqian China  0.1
19 Jul 2021 13:45 Zhelang China  0.1
19 Jul 2021 23:00 Cai Kien Vietnam  0.1
19 Jul 2021 23:00 Vinh Thuc Vietnam  0.1
19 Jul 2021 19:30 Jizhongtuo China  0.1
19 Jul 2021 19:15 Shanwei China  0.1
20 Jul 2021 17:45 Lengzilin China  0.1
22 Jul 2021 11:45 Feng-chiang Taiwan  0.1
22 Jul 2021 11:45 She-liao Taiwan  0.1
22 Jul 2021 11:45 Che-cheng Taiwan  0.1
22 Jul 2021 11:45 Maobitou Taiwan  0.1
22 Jul 2021 11:45 Ta-kuang Taiwan  0.1
19 Jul 2021 16:45 Santouzui China  0.1
19 Jul 2021 16:45 Hsi-t'ou China  0.1
19 Jul 2021 17:00 Jinhe China  0.1
19 Jul 2021 17:00 Wai-lo China  0.1
19 Jul 2021 18:30 Gangkou China  0.1
22 Jul 2021 11:45 Fang-shan Taiwan  0.1
22 Jul 2021 11:45 Chia-ho-ts'un Taiwan  0.1
19 Jul 2021 23:00 Cot Doai Vietnam  0.1
19 Jul 2021 17:00 Dongjian China  0.1
19 Jul 2021 17:00 Houhu China  0.1
19 Jul 2021 17:00 Houhai China  0.1
19 Jul 2021 17:00 Huangwu China  0.1
19 Jul 2021 17:00 Nayan China  0.1
19 Jul 2021 17:00 Doulongcun China  0.1
22 Jul 2021 06:15 Haikou China  0.1
22 Jul 2021 06:15 Puqian China  0.1
19 Jul 2021 23:00 Dang Noi Vietnam  0.1
19 Jul 2021 23:00 Dam Ha Vietnam  0.1
22 Jul 2021 05:30 Xiuying China  0.1
20 Jul 2021 18:00 Chengcun China  0.1
19 Jul 2021 13:45 Xingyou 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
19 Jul 2021 23:15 Dong Cay Vietnam  0.1
19 Jul 2021 17:45 Guanchang China  0.1
19 Jul 2021 17:45 Dongli China  0.1
19 Jul 2021 17:45 Tung-li China  0.1
22 Jul 2021 11:00 Liu-chiu Hsu Taiwan  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 14:00 Dianbai China  0.1
19 Jul 2021 14:00 Danchang China  0.1
22 Jul 2021 11:00 T'ien-ch'ien-ts'o Taiwan  0.1
22 Jul 2021 11:00 Shui-ti-liao Taiwan  0.1
19 Jul 2021 15:00 Dongshan China  0.1
19 Jul 2021 15:00 Zhanjiang China  0.1
19 Jul 2021 15:00 Ma-hsieh China  0.1
19 Jul 2021 15:00 Badongxu China  0.1
19 Jul 2021 15:00 Bengtang China  0.1
19 Jul 2021 15:00 Baisha China  0.1
19 Jul 2021 15:00 Shaoyao China  0.1
19 Jul 2021 12:30 Magang China  0.1
19 Jul 2021 12:30 Diancheng China  0.1
22 Jul 2021 05:45 Boshegang China  0.1
21 Jul 2021 11:30 Donghong China  0.1
21 Jul 2021 11:30 Jinghai China  0.1
21 Jul 2021 11:30 Ch'ao-yang-hsien China  0.1
21 Jul 2021 11:30 Haimen China  0.1
21 Jul 2021 11:30 Dahao China  0.1
21 Jul 2021 11:30 Aotou China  0.1
21 Jul 2021 11:30 Daitou China  0.1
19 Jul 2021 18:15 Jieshi China  0.1
19 Jul 2021 13:45 Meilu China  0.1
19 Jul 2021 19:30 Ubon Bi Vietnam  0.1
19 Jul 2021 19:30 Quang Yen Vietnam  0.1
19 Jul 2021 19:30 Hoang Chau Vietnam  0.1
19 Jul 2021 19:30 Gia Luan Vietnam  0.1
19 Jul 2021 19:30 Dong Vang Vietnam  0.1
22 Jul 2021 05:45 Haian China  0.1
19 Jul 2021 12:30 Xianmai China  0.1
19 Jul 2021 12:30 Longshe China  0.1
21 Jul 2021 11:15 Guangao China  0.1
20 Jul 2021 06:30 Da Nang Vietnam  0.1
20 Jul 2021 06:30 Xom Da Me Vietnam  0.1
20 Jul 2021 06:30 Mui Da Nang Vietnam  0.1
20 Jul 2021 06:30 Hoi An Vietnam  0.1
21 Jul 2021 10:45 Siwei China  0.1
21 Jul 2021 10:45 Huanglong China  0.1
21 Jul 2021 10:45 Houzhai China  0.1
21 Jul 2021 10:45 Zhelin China  0.1
21 Jul 2021 01:15 Nanluo China  0.1
21 Jul 2021 01:15 Haitou China  0.1
21 Jul 2021 11:15 Shantou China  0.1
19 Jul 2021 19:45 Hai Phong Vietnam  0.1
19 Jul 2021 19:45 Thuy U Vietnam  0.1
19 Jul 2021 19:45 Dai Loc Vietnam  0.1
19 Jul 2021 20:15 Haiwei China  0.1
22 Jul 2021 05:45 Longtang China  0.1
19 Jul 2021 13:15 Potou China  0.1
19 Jul 2021 15:30 Xuan Moc Vietnam  0.1
19 Jul 2021 15:30 Ba Lang Vietnam  0.1
19 Jul 2021 15:30 Hoang Xa Vietnam  0.1
21 Jul 2021 17:00 Rudong China  0.1
21 Jul 2021 10:45 Shenao China  0.1
21 Jul 2021 10:45 Nanao China  0.1
22 Jul 2021 11:00 Ta-lin-pu Taiwan  0.1
22 Jul 2021 11:00 Hou-ta-ts'o Taiwan  0.1
22 Jul 2021 11:00 I-jen Taiwan  0.1
22 Jul 2021 11:00 Tung-chiang Taiwan  0.1
22 Jul 2021 11:00 Wu-lung Taiwan  0.1
19 Jul 2021 21:15 Ban Sen Vietnam  0.1