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 GFS
Exposed countries Taiwan, China
Exposed population Few people in Category 1 or higher
Maximum wind speed 108 km/h
Maximum storm surge 1.8 m (19 Jul 20:15 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
GFS Current 108 km/h 1.8 m 171 mm 0.5
GFS Overall 144 km/h 1.2 m 795 mm 0.5

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

TOP

Wind

144 km/h

Up to 1.2 million 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 
CAT. 1China603 
Tropical StormTaiwan, China1,200,358
+
Taiwan25,804 
China1,174,554 

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 18:00 72 - - - - - - -
GREEN 2 19 Jul 2021 00:00 130 Few people
- - - - Taiwan, China
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 19 Jul 2021 00:00 UTC
LevelCountryPopulation 
250-500 mmChina173,693 
100-250 mmChina, Macao, Philippines, Laos, Cambodia28,374,356
+
China22,300,847 
Macao579,652 
Philippines5,461,229 
Laos32,151 
Cambodia475 
50-100 mmChina, Vietnam, Hong Kong, Philippines, Laos, Thailand, Cambodia61,684,932
+
China49,078,648 
Vietnam2,311,048 
Hong Kong3,142,514 
Philippines5,912,016 
Laos766,993 
Thailand243,589 
Cambodia230,121 

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 18:00 142 80 thousand
- - - - Laos, Vietnam, Cambodia
Blue 2 19 Jul 2021 00:00 620 28.5 million
- - - China, Vietnam, Hong Kong, Macao, Philippines, Laos, Thailand, Cambodia




Impact estimation for the next 72h
TOP

StormSurge

1.8 m

The maximum Storm surge height is  1.8m in Luewei, China. This height is estimated for 19 Jul 2021 20:15 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 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
19 Jul 2021 20:15 Luewei China  1.8
19 Jul 2021 20:15 Shalan China  1.8
19 Jul 2021 20:15 Shadi China  1.8
19 Jul 2021 20:15 Dalangwan China  1.8
19 Jul 2021 21:00 Dayang China  1.8
19 Jul 2021 21:00 Guanghai China  1.8
19 Jul 2021 21:00 Tiantou China  1.4
19 Jul 2021 21:00 Tonggu China  1.4
19 Jul 2021 23:15 Doushan China  1.3
19 Jul 2021 23:15 Chixi China  1.3
20 Jul 2021 04:45 Beidou China  1.2
20 Jul 2021 04:45 Chen-hai China  1.2
20 Jul 2021 04:45 Shen-ching China  1.2
19 Jul 2021 19:45 Mashan China  0.9
19 Jul 2021 19:45 Pingsha China  0.9
19 Jul 2021 20:30 Meige China  0.8
19 Jul 2021 20:30 Doumen China  0.8
19 Jul 2021 23:15 Huangchong China  0.8
19 Jul 2021 23:15 Mei-ko China  0.8
19 Jul 2021 19:30 Xiaolin China  0.7
19 Jul 2021 23:15 Ching-an China  0.7
19 Jul 2021 18:45 Baijiao China  0.6
19 Jul 2021 18:45 San-tsao China  0.6
19 Jul 2021 18:45 Nanping China  0.6
19 Jul 2021 18:45 Macau Macau (China)  0.6
19 Jul 2021 18:45 Taipa Macau (China)  0.6
19 Jul 2021 18:45 Coloane Macau (China)  0.6
19 Jul 2021 18:45 Xiazha China  0.5
19 Jul 2021 18:45 Maogang China  0.5
19 Jul 2021 18:45 Heung chau China  0.5
20 Jul 2021 02:30 Dagou China  0.5
20 Jul 2021 02:30 Hsin-chou China  0.5
19 Jul 2021 19:15 Cuihengcun China  0.5
19 Jul 2021 19:15 Qishan China  0.5
19 Jul 2021 19:15 Ch'i-ao China  0.5
20 Jul 2021 04:00 Jiangcheng China  0.4
20 Jul 2021 04:00 Baipu China  0.4
19 Jul 2021 19:15 Fan Kwai Tong Hong Kong (China)  0.4
19 Jul 2021 19:15 Nantou China  0.4
19 Jul 2021 18:00 Wanshan China  0.4
19 Jul 2021 18:30 Lajiwei China  0.4
19 Jul 2021 19:00 Tai Long Wan Hong Kong (China)  0.4
19 Jul 2021 19:00 Shekou China  0.4
19 Jul 2021 19:00 Lau Fau Sha Hong Kong (China)  0.4
20 Jul 2021 04:00 Pinggang China  0.3
19 Jul 2021 19:15 Chiu-chieh China  0.3
19 Jul 2021 19:15 Ngau Kwu Long Hong Kong (China)  0.3
19 Jul 2021 19:15 Castle Peak New Town Hong Kong (China)  0.3
19 Jul 2021 19:15 Tuen Mun Hong Kong (China)  0.3
21 Jul 2021 16:15 San Shah China  0.3
21 Jul 2021 16:15 Gaoshan China  0.3
21 Jul 2021 16:15 Ta-ch'iu China  0.3
21 Jul 2021 16:15 Beicuo China  0.3
21 Jul 2021 16:15 Guanjing China  0.3
21 Jul 2021 16:15 Cao Yu China  0.3
21 Jul 2021 16:15 Qingfeng China  0.3
21 Jul 2021 16:15 Pingtan China  0.3
19 Jul 2021 19:15 Ham Tin Hong Kong (China)  0.3
20 Jul 2021 01:45 Min-chung China  0.3
20 Jul 2021 01:45 Wan-ch'ing-sha China  0.3
20 Jul 2021 01:45 Cheng'anwei China  0.3
19 Jul 2021 19:15 Yuen Long Hong Kong (China)  0.3
19 Jul 2021 19:15 Sz Pak Hong Kong (China)  0.3
19 Jul 2021 14:30 Yuen Long Hong Kong (China)  0.3
19 Jul 2021 14:30 Tai Po Hong Kong (China)  0.3
19 Jul 2021 14:30 Tai Po Industrial Estate Hong Kong (China)  0.3
19 Jul 2021 14:30 Fung Yuen Hong Kong (China)  0.3
19 Jul 2021 14:30 Dabu Hong Kong (China)  0.3
19 Jul 2021 14:30 Sha Tau Kok China  0.3
19 Jul 2021 14:30 Cheung Kang Hong Kong (China)  0.3
19 Jul 2021 14:30 Imtin China  0.3
19 Jul 2021 14:30 Cheung Wo Hong Kong (China)  0.3
19 Jul 2021 14:30 Pak Sha Au Hong Kong (China)  0.3
19 Jul 2021 14:30 Long Ke Hong Kong (China)  0.3
19 Jul 2021 14:30 Khitschhung China  0.3
20 Jul 2021 05:30 Huangge China  0.3
20 Jul 2021 05:30 Jiang'ouwei China  0.3
20 Jul 2021 05:30 Fumunchai China  0.3
20 Jul 2021 05:30 Fumuntschai China  0.3
20 Jul 2021 05:30 Baihao China  0.3
20 Jul 2021 05:30 Taiping China  0.3
20 Jul 2021 05:30 Sha-ching China  0.3
20 Jul 2021 05:30 Heping China  0.3
19 Jul 2021 14:45 Cheung Sha Wan Hong Kong (China)  0.3
19 Jul 2021 14:45 Tsz Wa Chan Hong Kong (China)  0.3
19 Jul 2021 14:45 Yau Ma Po Hong Kong (China)  0.3
19 Jul 2021 14:45 Sai Kung Hong Kong (China)  0.3
19 Jul 2021 07:00 Dapeng China  0.3
19 Jul 2021 07:00 Taipang China  0.3
19 Jul 2021 07:00 Shagang China  0.3
19 Jul 2021 07:00 Aotou China  0.3
19 Jul 2021 07:00 Luzui China  0.3
21 Jul 2021 23:30 Bailong China  0.2
21 Jul 2021 23:30 Beimu China  0.2
21 Jul 2021 23:30 Yong'an China  0.2
21 Jul 2021 23:30 Shankou China  0.2
19 Jul 2021 18:00 Lo Tik Wan Hong Kong (China)  0.2
19 Jul 2021 18:00 Lo So Shing Hong Kong (China)  0.2
19 Jul 2021 18:00 Pok Fu Lam Hong Kong (China)  0.2
19 Jul 2021 18:00 Wa Fu Estate Hong Kong (China)  0.2
19 Jul 2021 18:00 Kennedy Town Hong Kong (China)  0.2
21 Jul 2021 23:30 Yingluo China  0.2
19 Jul 2021 18:15 Nam Wan Hong Kong (China)  0.2
19 Jul 2021 18:15 Hoi Pa Hong Kong (China)  0.2
19 Jul 2021 18:15 Tsuen Wan Hong Kong (China)  0.2
19 Jul 2021 18:15 Ha Kwai Chung Hong Kong (China)  0.2
19 Jul 2021 18:15 Aberdeen Hong Kong (China)  0.2
19 Jul 2021 18:15 Won Hang Hong Kong (China)  0.2
19 Jul 2021 18:15 Tain Sha Tsui Hong Kong (China)  0.2
19 Jul 2021 18:15 Central Hong Kong (China)  0.2
19 Jul 2021 18:15 Kowloon Hong Kong (China)  0.2
19 Jul 2021 18:15 Wan Chai Hong Kong (China)  0.2
19 Jul 2021 18:15 Chung Hom Kok Hong Kong (China)  0.2
19 Jul 2021 18:15 North Point Hong Kong (China)  0.2
19 Jul 2021 18:15 Chek Chue Hong Kong (China)  0.2
19 Jul 2021 18:15 Crocodile Hill Hong Kong (China)  0.2
21 Jul 2021 16:45 Houtian China  0.2
19 Jul 2021 05:30 Hsia-yung China  0.2
19 Jul 2021 05:30 Renshan China  0.2
19 Jul 2021 05:30 Jen-shan China  0.2
19 Jul 2021 05:30 Fanhe China  0.2
19 Jul 2021 05:30 Pinghai China  0.2
19 Jul 2021 18:00 Tai Tam Hong Kong (China)  0.2
19 Jul 2021 18:00 Stanley Hong Kong (China)  0.2
19 Jul 2021 18:00 San Wan Ho Shau Hong Kong (China)  0.2
19 Jul 2021 18:00 Yau Tong Hong Kong (China)  0.2
19 Jul 2021 18:00 Rennie's Mill Hong Kong (China)  0.2
19 Jul 2021 18:00 A Kung Ngam Hong Kong (China)  0.2
19 Jul 2021 18:00 Chai Wan Hong Kong (China)  0.2
19 Jul 2021 18:00 Sau Mau Ping Hong Kong (China)  0.2
19 Jul 2021 18:00 Hok Tsui Wan Hong Kong (China)  0.2
19 Jul 2021 18:00 Chik Sha Hong Kong (China)  0.2
19 Jul 2021 18:00 Hang Hau Hong Kong (China)  0.2
19 Jul 2021 18:00 Tei Tong Tsui Hong Kong (China)  0.2
19 Jul 2021 18:00 Tai Wan Tau Hong Kong (China)  0.2
20 Jul 2021 23:00 Caotan China  0.2
21 Jul 2021 01:30 Longtousha China  0.2
21 Jul 2021 01:30 Yingzai China  0.2
20 Jul 2021 03:45 Lengzilin China  0.2
19 Jul 2021 16:15 Jiesheng China  0.2
19 Jul 2021 16:15 Tianqian China  0.2
19 Jul 2021 16:15 Zhelang China  0.2
19 Jul 2021 01:30 Dongjian China  0.2
19 Jul 2021 01:30 Badongxu China  0.2
19 Jul 2021 01:30 Houhu China  0.2
19 Jul 2021 01:30 Bengtang China  0.2
19 Jul 2021 01:30 Houhai China  0.2
19 Jul 2021 01:30 Baisha China  0.2
19 Jul 2021 01:30 Shaoyao China  0.2
19 Jul 2021 01:30 Xingyou China  0.2
19 Jul 2021 01:30 Huangwu China  0.2
19 Jul 2021 01:30 Nayan China  0.2
19 Jul 2021 01:30 Doulongcun China  0.2
19 Jul 2021 16:00 Houmen China  0.2
19 Jul 2021 06:45 Gangkou China  0.2
20 Jul 2021 03:45 Santouzui China  0.2
20 Jul 2021 03:45 Hsi-t'ou China  0.2
19 Jul 2021 16:30 Jieshi China  0.2
20 Jul 2021 22:00 Gaode China  0.2
20 Jul 2021 22:00 Guchengling China  0.2
19 Jul 2021 00:00 Potou China  0.2
19 Jul 2021 00:00 Huangpo China  0.2
19 Jul 2021 00:00 Chiu-wu-ch'uan China  0.2
19 Jul 2021 16:45 Magong China  0.2
19 Jul 2021 16:45 Jizhongtuo China  0.2
19 Jul 2021 16:45 Shanwei China  0.2
20 Jul 2021 22:30 Beihai China  0.2
20 Jul 2021 21:30 Ch'i-shui China  0.1
20 Jul 2021 21:30 Haikang China  0.1
21 Jul 2021 17:00 Taiping China  0.1
21 Jul 2021 17:00 Xianmai China  0.1
21 Jul 2021 17:00 Longshe China  0.1
21 Jul 2021 17:00 Dongli China  0.1
21 Jul 2021 16:15 Dongshan China  0.1
21 Jul 2021 16:15 Tung-li China  0.1
20 Jul 2021 21:30 Xinxing China  0.1
20 Jul 2021 22:15 Guanjing China  0.1
20 Jul 2021 22:15 Hsi-ch'ang-hsu China  0.1
20 Jul 2021 22:15 Hsi-ch'ang China  0.1
20 Jul 2021 22:15 Shagang China  0.1
20 Jul 2021 22:15 Dangjiang China  0.1
20 Jul 2021 21:45 Liu-sha-ying China  0.1
20 Jul 2021 22:00 Qiaotou China  0.1
20 Jul 2021 21:45 Shuiwei China  0.1
20 Jul 2021 21:45 Liusha China  0.1
20 Jul 2021 21:45 Mai-ch'en-hsu China  0.1
20 Jul 2021 22:30 Longmen China  0.1
20 Jul 2021 22:30 Dafanpo China  0.1
20 Jul 2021 22:30 Hsi-niu-chiao China  0.1
20 Jul 2021 22:30 Pingshan China  0.1
20 Jul 2021 23:00 Qianjiang China  0.1
20 Jul 2021 20:45 Guangcun China  0.1
19 Jul 2021 07:00 Tho Ngoa Vietnam  0.1
19 Jul 2021 07:00 Ly Nhon Thon Vietnam  0.1
19 Jul 2021 07:00 Dong Hoi Vietnam  0.1
19 Jul 2021 16:30 Hudong China  0.1
19 Jul 2021 02:45 Guanchang China  0.1
19 Jul 2021 02:45 Jinhe China  0.1
19 Jul 2021 02:45 Wai-lo China  0.1
19 Jul 2021 10:45 Zhanjiang China  0.1
19 Jul 2021 10:45 Ma-hsieh China  0.1
20 Jul 2021 20:15 Paipu China  0.1
20 Jul 2021 20:15 Baimajing China  0.1
20 Jul 2021 20:15 Hsin-ying China  0.1
20 Jul 2021 20:15 Eman China  0.1
20 Jul 2021 20:15 Taan China  0.1
20 Jul 2021 20:15 Hsin-chou China  0.1
21 Jul 2021 22:00 Maichen China  0.1
19 Jul 2021 01:30 Qianshan China  0.1
19 Jul 2021 00:00 Hai-lu China  0.1
19 Jul 2021 02:45 Xiuying China  0.1
19 Jul 2021 02:45 Haikou China  0.1
19 Jul 2021 02:45 Puqian China  0.1
19 Jul 2021 15:30 Jiazi China  0.1
19 Jul 2021 15:30 Changqingwei China  0.1
21 Jul 2021 03:45 Hai Phong Vietnam  0.1
21 Jul 2021 03:45 Thuy U Vietnam  0.1
21 Jul 2021 03:45 Dai Loc Vietnam  0.1
21 Jul 2021 03:45 Quang Yen Vietnam  0.1
21 Jul 2021 03:45 Hoang Chau Vietnam  0.1
20 Jul 2021 22:15 Gongche China  0.1
20 Jul 2021 22:15 Ch'i-sha China  0.1
21 Jul 2021 03:30 Gia Luan Vietnam  0.1
21 Jul 2021 22:00 Haian China  0.1
20 Jul 2021 22:00 Mong Cai Vietnam  0.1
20 Jul 2021 22:00 Jiangpingxu China  0.1
20 Jul 2021 22:00 Jiangping China  0.1
20 Jul 2021 22:00 Wanwei China  0.1
19 Jul 2021 13:45 Donghong China  0.1
19 Jul 2021 13:45 Jinghai China  0.1
19 Jul 2021 13:45 Haimen China  0.1
21 Jul 2021 03:45 Ubon Bi Vietnam  0.1
21 Jul 2021 03:45 Dong Vang Vietnam  0.1
21 Jul 2021 22:00 Boshegang China  0.1
21 Jul 2021 22:00 Longtang China  0.1
19 Jul 2021 14:00 Ch'ao-yang-hsien China  0.1
19 Jul 2021 14:00 Dahao China  0.1
19 Jul 2021 14:00 Aotou China  0.1
19 Jul 2021 14:00 Daitou China  0.1
20 Jul 2021 22:00 Bailong China  0.1
20 Jul 2021 22:00 Jiangshan China  0.1
19 Jul 2021 22:45 Pucheng China  0.1
19 Jul 2021 22:45 Sha-fan-chieh China  0.1
19 Jul 2021 22:45 Jinxiang China  0.1
20 Jul 2021 22:00 Baishawan China  0.1
20 Jul 2021 22:00 Fangcheng China  0.1
19 Jul 2021 15:30 Shenquan China  0.1
20 Jul 2021 15:45 Diancheng China  0.1
20 Jul 2021 15:45 Rudong China  0.1
19 Jul 2021 12:30 Guangao China  0.1
19 Jul 2021 12:30 Siwei China  0.1
19 Jul 2021 12:30 Houzhai China  0.1
21 Jul 2021 15:00 Chengcun China  0.1
21 Jul 2021 03:15 Hon Gay Vietnam  0.1
21 Jul 2021 03:15 Lang Bang Vietnam  0.1
21 Jul 2021 03:15 Ha Tou Vietnam  0.1
21 Jul 2021 03:15 Cam Pha Vietnam  0.1
21 Jul 2021 03:15 Mong Duong Vietnam  0.1
19 Jul 2021 03:00 Dianbai China  0.1
19 Jul 2021 03:00 Danchang China  0.1
19 Jul 2021 03:00 Magang China  0.1
19 Jul 2021 00:00 Meilu China  0.1
19 Jul 2021 00:00 Shuidong China  0.1
21 Jul 2021 12:30 Shangyang China  0.1
19 Jul 2021 12:30 Huanglong China  0.1
19 Jul 2021 12:30 Zhelin China  0.1
21 Jul 2021 01:00 Dong Cay Vietnam  0.1
21 Jul 2021 01:00 Dang Noi Vietnam  0.1
21 Jul 2021 01:00 Dam Ha Vietnam  0.1
21 Jul 2021 01:00 Cai Kien Vietnam  0.1
19 Jul 2021 00:00 Ch'i-ching China  0.1
20 Jul 2021 14:00 Raoping China  0.1
20 Jul 2021 14:00 Shenao China  0.1
20 Jul 2021 14:00 Nanao China  0.1
20 Jul 2021 14:00 Chelim China  0.1
20 Jul 2021 14:00 Gongkou China  0.1
20 Jul 2021 14:00 Dongshan China  0.1