Overall Orange alert Tropical Cyclone for CEMPAKA-21
in China
21 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 Taiwan
Exposed population No people in Category 1 or higher
Maximum wind speed 54 km/h
Maximum storm surge 0.3 m (22 Jul 15:45 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 54 km/h 0.3 m 101 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 Few people can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 21 Jul 2021 00:00 UTC
CategoryCountryPopulation 
Tropical StormTaiwan892 

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 50 - - - - - - -
GREEN 5 20 Jul 2021 00:00 76 -
- - - - - China
GREEN 6 20 Jul 2021 12:00 65 -
- - - - - China
GREEN 7 21 Jul 2021 00:00 72 -
- - - - - Taiwan
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 21 Jul 2021 00:00 UTC
LevelCountryPopulation 
250-500 mmPhilippines621,661 
100-250 mmChina, Taiwan, Vietnam, Laos, Philippines, Thailand, Cambodia13,534,546
+
China4,689,209 
Taiwan137,348 
Vietnam3,034,498 
Laos608,773 
Philippines4,894,832 
Thailand169,652 
Cambodia232 
50-100 mmChina, Taiwan, Vietnam, Laos, Philippines, Thailand, Cambodia61,813,178
+
China36,757,054 
Taiwan2,282,292 
Vietnam14,431,205 
Laos1,716,419 
Philippines5,537,945 
Thailand937,120 
Cambodia151,141 

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 12:00 130 5 thousand
- - - - China, Laos, Vietnam
Blue 5 20 Jul 2021 00:00 195 10 thousand
- - - - China, Taiwan
Blue 6 20 Jul 2021 12:00 157 270 thousand
- - - - China
Blue 7 21 Jul 2021 00:00 458 14.2 million
- - - China, Taiwan, Vietnam, Laos, Philippines, Thailand, Cambodia




Impact estimation for the next 72h
TOP

StormSurge

0.3 m

The maximum Storm surge height is  0.3m in San Shah, China. This height is estimated for 22 Jul 2021 15:45 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 21 Jul 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
22 Jul 2021 15:45 San Shah China  0.3
22 Jul 2021 15:45 Gaoshan China  0.3
22 Jul 2021 15:45 Ta-ch'iu China  0.3
22 Jul 2021 15:45 Beicuo China  0.3
22 Jul 2021 15:45 Guanjing China  0.3
22 Jul 2021 15:45 Cao Yu China  0.3
22 Jul 2021 15:45 Qingfeng China  0.3
22 Jul 2021 15:45 Pingtan China  0.3
21 Jul 2021 04:45 Min-chung China  0.3
21 Jul 2021 04:45 Wan-ch'ing-sha China  0.3
21 Jul 2021 04:45 Qishan China  0.3
21 Jul 2021 04:45 Cheng'anwei China  0.3
21 Jul 2021 00:00 Huangge China  0.2
21 Jul 2021 00:00 Jiang'ouwei China  0.2
21 Jul 2021 00:00 Fumunchai China  0.2
21 Jul 2021 00:00 Fumuntschai China  0.2
21 Jul 2021 00:00 Baihao China  0.2
21 Jul 2021 00:00 Taiping China  0.2
21 Jul 2021 00:00 Sha-ching China  0.2
21 Jul 2021 00:00 Heping China  0.2
21 Jul 2021 03:15 Cuihengcun China  0.2
21 Jul 2021 03:15 Ch'i-ao China  0.2
21 Jul 2021 02:45 Xiazha China  0.2
22 Jul 2021 16:15 Houtian China  0.2
21 Jul 2021 00:00 Nantou China  0.2
21 Jul 2021 22:00 Bailong China  0.2
21 Jul 2021 22:00 Beimu China  0.2
21 Jul 2021 22:00 Yong'an China  0.2
21 Jul 2021 22:00 Shankou China  0.2
21 Jul 2021 21:30 Yingluo China  0.2
21 Jul 2021 03:45 Beidou China  0.2
21 Jul 2021 03:45 Chen-hai China  0.2
21 Jul 2021 03:45 Shen-ching China  0.2
21 Jul 2021 00:15 Chiu-chieh China  0.2
21 Jul 2021 00:15 Shekou China  0.2
21 Jul 2021 21:15 Caotan China  0.2
21 Jul 2021 13:15 Baijiao China  0.2
21 Jul 2021 13:15 San-tsao China  0.2
21 Jul 2021 13:15 Nanping China  0.2
21 Jul 2021 13:15 Macau Macau (China)  0.2
21 Jul 2021 13:15 Taipa Macau (China)  0.2
21 Jul 2021 13:15 Coloane Macau (China)  0.2
21 Jul 2021 15:15 Castle Peak New Town Hong Kong (China)  0.2
21 Jul 2021 15:15 Tuen Mun Hong Kong (China)  0.2
22 Jul 2021 00:15 Longtousha China  0.2
22 Jul 2021 00:15 Yingzai China  0.2
21 Jul 2021 02:45 Luewei China  0.2
21 Jul 2021 02:45 Shalan China  0.2
21 Jul 2021 02:45 Shadi China  0.2
21 Jul 2021 02:45 Dalangwan China  0.2
21 Jul 2021 00:00 Chixi China  0.2
21 Jul 2021 00:00 Huangchong China  0.2
21 Jul 2021 00:00 Meige China  0.2
21 Jul 2021 00:00 Mashan China  0.2
21 Jul 2021 00:00 Mei-ko China  0.2
21 Jul 2021 00:00 Pingsha China  0.2
21 Jul 2021 00:00 Doumen China  0.2
21 Jul 2021 00:00 Ching-an China  0.2
21 Jul 2021 00:00 Xiaolin China  0.2
21 Jul 2021 03:15 Maogang China  0.2
21 Jul 2021 03:15 Heung chau China  0.2
21 Jul 2021 14:00 Fan Kwai Tong Hong Kong (China)  0.2
21 Jul 2021 23:00 Yuen Long Hong Kong (China)  0.2
21 Jul 2021 23:00 Tai Po Hong Kong (China)  0.2
21 Jul 2021 23:00 Tai Po Industrial Estate Hong Kong (China)  0.2
21 Jul 2021 23:00 Fung Yuen Hong Kong (China)  0.2
21 Jul 2021 23:00 Dabu Hong Kong (China)  0.2
21 Jul 2021 23:00 Sha Tau Kok China  0.2
21 Jul 2021 23:00 Cheung Kang Hong Kong (China)  0.2
21 Jul 2021 23:00 Imtin China  0.2
21 Jul 2021 23:00 Cheung Wo Hong Kong (China)  0.2
21 Jul 2021 23:00 Pak Sha Au Hong Kong (China)  0.2
21 Jul 2021 23:00 Long Ke Hong Kong (China)  0.2
21 Jul 2021 23:00 Khitschhung China  0.2
21 Jul 2021 13:45 Tiantou China  0.2
21 Jul 2021 14:00 Lau Fau Sha Hong Kong (China)  0.1
21 Jul 2021 14:00 Ngau Kwu Long Hong Kong (China)  0.1
21 Jul 2021 23:00 Cheung Sha Wan Hong Kong (China)  0.1
21 Jul 2021 23:00 Tsz Wa Chan Hong Kong (China)  0.1
21 Jul 2021 23:00 Yau Ma Po Hong Kong (China)  0.1
21 Jul 2021 23:00 Sai Kung Hong Kong (China)  0.1
21 Jul 2021 13:00 Dayang China  0.1
21 Jul 2021 13:00 Guanghai China  0.1
21 Jul 2021 13:00 Tonggu China  0.1
21 Jul 2021 14:00 Tai Long Wan Hong Kong (China)  0.1
21 Jul 2021 14:15 Ham Tin Hong Kong (China)  0.1
21 Jul 2021 14:45 Yuen Long Hong Kong (China)  0.1
21 Jul 2021 14:45 Sz Pak Hong Kong (China)  0.1
21 Jul 2021 01:45 Jiangcheng China  0.1
21 Jul 2021 01:45 Baipu China  0.1
21 Jul 2021 01:45 Dagou China  0.1
21 Jul 2021 01:45 Hsin-chou China  0.1
21 Jul 2021 00:00 Paipu China  0.1
21 Jul 2021 00:00 Baimajing China  0.1
21 Jul 2021 00:00 Hsin-ying China  0.1
21 Jul 2021 00:00 Eman China  0.1
21 Jul 2021 00:00 Taan China  0.1
21 Jul 2021 00:00 Hsin-chou China  0.1
21 Jul 2021 02:45 Mong Cai Vietnam  0.1
21 Jul 2021 02:45 Jiangpingxu China  0.1
21 Jul 2021 02:45 Jiangping China  0.1
21 Jul 2021 02:45 Wanwei China  0.1
21 Jul 2021 13:00 Lajiwei China  0.1
21 Jul 2021 13:30 Jiesheng China  0.1
21 Jul 2021 13:30 Tianqian China  0.1
21 Jul 2021 13:30 Zhelang China  0.1
21 Jul 2021 22:30 Dapeng China  0.1
21 Jul 2021 22:30 Taipang China  0.1
21 Jul 2021 22:30 Shagang China  0.1
21 Jul 2021 22:30 Aotou China  0.1
21 Jul 2021 22:30 Luzui China  0.1
21 Jul 2021 02:45 Bailong China  0.1
21 Jul 2021 02:45 Jiangshan China  0.1
21 Jul 2021 10:15 Dahao China  0.1
21 Jul 2021 10:15 Aotou China  0.1
21 Jul 2021 10:15 Daitou China  0.1
21 Jul 2021 10:15 Guangao China  0.1
21 Jul 2021 10:15 Siwei China  0.1
21 Jul 2021 10:15 Houzhai China  0.1
21 Jul 2021 02:15 Pinggang China  0.1
21 Jul 2021 04:15 Doushan China  0.1
21 Jul 2021 15:00 Chengcun China  0.1
21 Jul 2021 15:00 Santouzui China  0.1
21 Jul 2021 15:00 Hsi-t'ou China  0.1
21 Jul 2021 15:00 Lengzilin China  0.1
21 Jul 2021 05:00 Houmen China  0.1
21 Jul 2021 02:45 Gia Luan Vietnam  0.1
21 Jul 2021 02:45 Dong Vang Vietnam  0.1
21 Jul 2021 02:45 Hon Gay Vietnam  0.1
21 Jul 2021 02:45 Lang Bang Vietnam  0.1
21 Jul 2021 02:45 Ha Tou Vietnam  0.1
21 Jul 2021 02:45 Baishawan China  0.1
21 Jul 2021 02:45 Fangcheng China  0.1
21 Jul 2021 02:45 Gongche China  0.1
21 Jul 2021 02:45 Ch'i-sha China  0.1
21 Jul 2021 08:45 Magong China  0.1
21 Jul 2021 08:45 Jizhongtuo China  0.1
21 Jul 2021 09:45 Hsia-yung China  0.1
21 Jul 2021 09:45 Renshan China  0.1
21 Jul 2021 09:45 Jen-shan China  0.1
21 Jul 2021 09:45 Fanhe China  0.1
21 Jul 2021 09:45 Pinghai China  0.1
21 Jul 2021 02:45 Hsi-ch'ang-hsu China  0.1
21 Jul 2021 02:45 Hsi-ch'ang China  0.1
21 Jul 2021 02:45 Shagang China  0.1
21 Jul 2021 02:45 Beihai China  0.1
21 Jul 2021 02:45 Dangjiang China  0.1
21 Jul 2021 02:45 Gaode China  0.1
21 Jul 2021 02:45 Guchengling China  0.1
21 Jul 2021 02:45 Qianjiang China  0.1
21 Jul 2021 10:15 Huanglong China  0.1
21 Jul 2021 10:15 Zhelin China  0.1
21 Jul 2021 10:00 Raoping China  0.1
21 Jul 2021 10:00 Shenao China  0.1
21 Jul 2021 10:00 Nanao China  0.1
21 Jul 2021 10:00 Chelim China  0.1
21 Jul 2021 10:00 Gongkou China  0.1
21 Jul 2021 10:00 Dongshan China  0.1
21 Jul 2021 00:15 Guangcun China  0.1
21 Jul 2021 00:15 Xinxing China  0.1
21 Jul 2021 04:00 Hai Phong Vietnam  0.1
21 Jul 2021 04:00 Thuy U Vietnam  0.1
21 Jul 2021 04:00 Dai Loc Vietnam  0.1
21 Jul 2021 04:00 Quang Yen Vietnam  0.1
21 Jul 2021 04:00 Hoang Chau Vietnam  0.1
21 Jul 2021 13:45 Jieshi China  0.1
21 Jul 2021 04:15 Ubon Bi Vietnam  0.1
21 Jul 2021 04:00 Cam Pha Vietnam  0.1
21 Jul 2021 04:00 Mong Duong Vietnam  0.1
21 Jul 2021 03:15 Longmen China  0.1
21 Jul 2021 03:15 Dafanpo China  0.1
21 Jul 2021 03:15 Hsi-niu-chiao China  0.1
21 Jul 2021 03:15 Pingshan China  0.1
21 Jul 2021 00:15 Qiaotou China  0.1
23 Jul 2021 11:30 Chu-kao-wan Taiwan  0.1
23 Jul 2021 11:30 Feng-kuei-li Taiwan  0.1
23 Jul 2021 11:30 Ch'ang-an Taiwan  0.1
23 Jul 2021 11:30 P'eng-hu-erh-ts'un Taiwan  0.1
23 Jul 2021 11:30 Ma-kung Taiwan  0.1
23 Jul 2021 11:30 Ch'eng-ch'ien Taiwan  0.1
23 Jul 2021 11:30 Chu-mu-shui Taiwan  0.1
23 Jul 2021 11:30 Chi-pei Taiwan  0.1
23 Jul 2021 11:30 Lung-men Taiwan  0.1
21 Jul 2021 11:45 Wanshan China  0.1
21 Jul 2021 14:15 Shanwei China  0.1
21 Jul 2021 13:45 Hudong China  0.1
21 Jul 2021 12:30 Nam Wan Hong Kong (China)  0.1
21 Jul 2021 12:30 Hoi Pa Hong Kong (China)  0.1
21 Jul 2021 12:30 Lo Tik Wan Hong Kong (China)  0.1
21 Jul 2021 12:30 Tsuen Wan Hong Kong (China)  0.1
21 Jul 2021 12:30 Lo So Shing Hong Kong (China)  0.1
21 Jul 2021 12:30 Ha Kwai Chung Hong Kong (China)  0.1
21 Jul 2021 12:30 Pok Fu Lam Hong Kong (China)  0.1
21 Jul 2021 12:30 Wa Fu Estate Hong Kong (China)  0.1
21 Jul 2021 12:30 Kennedy Town Hong Kong (China)  0.1
21 Jul 2021 12:30 Aberdeen Hong Kong (China)  0.1
21 Jul 2021 12:30 Won Hang Hong Kong (China)  0.1
21 Jul 2021 12:30 Tain Sha Tsui Hong Kong (China)  0.1
21 Jul 2021 12:30 Central Hong Kong (China)  0.1
21 Jul 2021 12:30 Kowloon Hong Kong (China)  0.1
21 Jul 2021 12:30 Wan Chai Hong Kong (China)  0.1
21 Jul 2021 12:30 Chung Hom Kok Hong Kong (China)  0.1
21 Jul 2021 12:30 North Point Hong Kong (China)  0.1
21 Jul 2021 12:30 Chek Chue Hong Kong (China)  0.1
21 Jul 2021 12:30 Crocodile Hill Hong Kong (China)  0.1
21 Jul 2021 10:00 Gongqiancun China  0.1
21 Jul 2021 10:00 Chencheng China  0.1
21 Jul 2021 10:00 Hsi-pu China  0.1
21 Jul 2021 16:45 Taiping China  0.1
21 Jul 2021 16:45 Xianmai China  0.1
21 Jul 2021 16:45 Longshe China  0.1
21 Jul 2021 16:45 Dongli China  0.1
21 Jul 2021 16:45 Tung-li China  0.1
21 Jul 2021 16:45 Dongshan China  0.1
22 Jul 2021 17:30 She-liao Taiwan  0.1
22 Jul 2021 17:30 Che-cheng Taiwan  0.1
22 Jul 2021 17:30 Maobitou Taiwan  0.1
22 Jul 2021 17:30 Ta-kuang Taiwan  0.1
22 Jul 2021 16:45 Feng-chiang Taiwan  0.1
22 Jul 2021 17:30 Fang-shan Taiwan  0.1
23 Jul 2021 23:45 Fuye China  0.1
21 Jul 2021 14:30 Gangkou China  0.1
21 Jul 2021 10:15 Sidu China  0.1
21 Jul 2021 10:15 Ssu-tu China  0.1
22 Jul 2021 16:45 Chia-ho-ts'un Taiwan  0.1
21 Jul 2021 03:15 Cai Kien Vietnam  0.1
21 Jul 2021 03:15 Cot Doai Vietnam  0.1
21 Jul 2021 03:15 Vinh Thuc Vietnam  0.1
21 Jul 2021 03:45 Dang Noi Vietnam  0.1
21 Jul 2021 03:45 Dam Ha Vietnam  0.1
21 Jul 2021 00:00 Nanluo China  0.1
21 Jul 2021 00:00 Haitou China  0.1
23 Jul 2021 23:45 Nanri China  0.1
21 Jul 2021 03:15 Dong Cay Vietnam  0.1
21 Jul 2021 13:30 Fugong China  0.1
21 Jul 2021 13:30 Haicang China  0.1
21 Jul 2021 13:30 Gangwei China  0.1
21 Jul 2021 13:30 Songyu China  0.1
21 Jul 2021 13:30 Hsing-lin China  0.1
21 Jul 2021 13:30 Xucuo China  0.1
21 Jul 2021 13:30 Gulangyu China  0.1
21 Jul 2021 13:30 Xiamen China  0.1
21 Jul 2021 13:30 Chen-hai China  0.1
21 Jul 2021 13:30 Daomei China  0.1
21 Jul 2021 13:30 Dianqian China  0.1
21 Jul 2021 13:30 Jiangtou China  0.1
21 Jul 2021 13:30 Zhenhai China  0.1
21 Jul 2021 13:30 Hecuo China  0.1
21 Jul 2021 13:30 Liuwudian China  0.1
23 Jul 2021 11:30 Wai-an Taiwan  0.1
22 Jul 2021 17:30 T'ien-ch'ien-ts'o Taiwan  0.1
22 Jul 2021 17:30 Shui-ti-liao Taiwan  0.1
21 Jul 2021 09:30 Hsing-ch'en China  0.1
21 Jul 2021 09:30 Chendai China  0.1
21 Jul 2021 09:30 Huqiu China  0.1
21 Jul 2021 09:30 Wutian China  0.1
21 Jul 2021 09:30 Chengguanzhen China  0.1
21 Jul 2021 09:30 Guleitou China  0.1
21 Jul 2021 09:30 Gangkou China  0.1
21 Jul 2021 09:30 Hsia-mei China  0.1
21 Jul 2021 00:00 Haiwei China  0.1
21 Jul 2021 08:45 Jiazi China  0.1
21 Jul 2021 08:45 Changqingwei China  0.1
23 Jul 2021 23:30 Ch'i-ting Taiwan  0.1