Overall Orange alert Tropical Cyclone for CEMPAKA-21
in China
19 Jul 2021 06 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 No people in Category 1 or higher
Maximum wind speed 94 km/h
Maximum storm surge 1.1 m (19 Jul 23:15 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 94 km/h 1.1 m 157 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 06:00 UTC
CategoryCountryPopulation 
Tropical StormTaiwan, China1,203,244
+
Taiwan239,033 
China964,211 

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 00:00 108 - - - - - - -
GREEN 3 19 Jul 2021 06:00 130 -
- - - - - Taiwan, 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 06:00 UTC
LevelCountryPopulation 
250-500 mmChina, Philippines4,086,811
+
China3,705,137 
Philippines381,674 
100-250 mmChina, Hong Kong, Philippines18,503,903
+
China12,629,410 
Hong Kong1,114 
Philippines5,873,377 
50-100 mmChina, Vietnam, Hong Kong, Macao, Philippines, Laos, Thailand, Cambodia39,032,572
+
China24,138,849 
Vietnam591,053 
Hong Kong7,325,366 
Macao579,652 
Philippines5,118,193 
Laos1,002,426 
Thailand199,718 
Cambodia77,311 

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 00:00 171 -
- - - - - Laos, Cambodia
Blue 3 19 Jul 2021 06:00 572 22.6 million
- - - China, Vietnam, Hong Kong, Macao, Philippines, Laos, Thailand, Cambodia




Impact estimation for the next 72h
TOP

StormSurge

1.1 m

The maximum Storm surge height is  1.1m in Shalan, China. This height is estimated for 19 Jul 2021 23:15 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 06:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
19 Jul 2021 23:15 Shalan China  1.1
19 Jul 2021 23:15 Dayang China  1.1
19 Jul 2021 23:15 Dalangwan China  1.1
19 Jul 2021 23:15 Guanghai China  1.1
19 Jul 2021 22:45 Luewei China  1.1
19 Jul 2021 22:45 Shadi China  1.1
20 Jul 2021 05:15 Beidou China  0.9
20 Jul 2021 05:15 Chen-hai China  0.9
20 Jul 2021 05:15 Shen-ching China  0.9
19 Jul 2021 23:15 Tiantou China  0.9
19 Jul 2021 23:15 Tonggu China  0.9
20 Jul 2021 01:15 Doushan China  0.7
20 Jul 2021 01:15 Chixi China  0.7
22 Jul 2021 01:30 Bailong China  0.6
22 Jul 2021 01:30 Beimu China  0.6
22 Jul 2021 01:30 Yong'an China  0.6
22 Jul 2021 01:30 Shankou China  0.6
22 Jul 2021 01:30 Yingluo China  0.6
20 Jul 2021 03:30 Dagou China  0.6
20 Jul 2021 03:30 Hsin-chou China  0.6
20 Jul 2021 14:30 Chengcun China  0.6
20 Jul 2021 14:30 Santouzui China  0.6
20 Jul 2021 14:30 Hsi-t'ou China  0.6
20 Jul 2021 14:30 Lengzilin China  0.6
20 Jul 2021 14:30 Pinggang China  0.6
20 Jul 2021 14:30 Jiangcheng China  0.6
20 Jul 2021 14:30 Baipu China  0.6
20 Jul 2021 02:15 Huangchong China  0.5
20 Jul 2021 02:15 Meige China  0.5
20 Jul 2021 02:15 Mashan China  0.5
20 Jul 2021 02:15 Mei-ko China  0.5
20 Jul 2021 02:15 Pingsha China  0.5
20 Jul 2021 02:15 Doumen China  0.5
22 Jul 2021 00:00 Beihai China  0.5
22 Jul 2021 00:00 Gaode China  0.5
22 Jul 2021 00:00 Guchengling China  0.5
22 Jul 2021 03:15 Caotan China  0.5
22 Jul 2021 03:15 Longtousha China  0.5
22 Jul 2021 03:15 Yingzai China  0.5
20 Jul 2021 02:30 Ching-an China  0.5
20 Jul 2021 02:30 Xiaolin China  0.5
19 Jul 2021 16:00 Nanping China  0.5
19 Jul 2021 16:00 Xiazha China  0.5
19 Jul 2021 16:00 Maogang China  0.5
19 Jul 2021 16:00 Macau Macau (China)  0.5
19 Jul 2021 16:00 Taipa Macau (China)  0.5
19 Jul 2021 16:00 Coloane Macau (China)  0.5
19 Jul 2021 16:00 Heung chau China  0.5
21 Jul 2021 22:15 Hsi-ch'ang-hsu China  0.4
21 Jul 2021 22:15 Hsi-ch'ang China  0.4
21 Jul 2021 22:15 Shagang China  0.4
21 Jul 2021 22:15 Dangjiang China  0.4
21 Jul 2021 22:15 Qianjiang China  0.4
19 Jul 2021 15:30 Baijiao China  0.4
19 Jul 2021 15:30 San-tsao China  0.4
19 Jul 2021 16:45 Cuihengcun China  0.4
19 Jul 2021 16:45 Ch'i-ao China  0.4
22 Jul 2021 01:30 Guanjing China  0.4
19 Jul 2021 16:00 Qishan China  0.4
22 Jul 2021 00:15 Ch'i-shui China  0.4
22 Jul 2021 00:15 Haikang China  0.4
22 Jul 2021 03:00 Hsi-niu-chiao China  0.3
22 Jul 2021 03:00 Pingshan China  0.3
19 Jul 2021 16:15 Fan Kwai Tong Hong Kong (China)  0.3
19 Jul 2021 16:15 Nantou China  0.3
22 Jul 2021 04:15 Longmen China  0.3
22 Jul 2021 04:15 Dafanpo China  0.3
19 Jul 2021 16:45 Lajiwei China  0.3
21 Jul 2021 16:30 San Shah China  0.3
21 Jul 2021 16:30 Gaoshan China  0.3
21 Jul 2021 16:30 Ta-ch'iu China  0.3
21 Jul 2021 16:30 Beicuo China  0.3
21 Jul 2021 16:30 Guanjing China  0.3
21 Jul 2021 16:30 Cao Yu China  0.3
21 Jul 2021 16:30 Qingfeng China  0.3
21 Jul 2021 16:30 Pingtan China  0.3
22 Jul 2021 00:15 Gongche China  0.3
22 Jul 2021 00:15 Ch'i-sha China  0.3
19 Jul 2021 16:45 Wanshan China  0.3
22 Jul 2021 00:00 Liu-sha-ying China  0.3
19 Jul 2021 16:45 Tai Long Wan Hong Kong (China)  0.3
19 Jul 2021 16:45 Shekou China  0.3
19 Jul 2021 16:45 Lau Fau Sha Hong Kong (China)  0.3
19 Jul 2021 08:15 Yuen Long Hong Kong (China)  0.3
19 Jul 2021 08:15 Tai Po Hong Kong (China)  0.3
19 Jul 2021 08:15 Tai Po Industrial Estate Hong Kong (China)  0.3
19 Jul 2021 08:15 Fung Yuen Hong Kong (China)  0.3
19 Jul 2021 08:15 Dabu Hong Kong (China)  0.3
19 Jul 2021 08:15 Sha Tau Kok China  0.3
19 Jul 2021 08:15 Cheung Kang Hong Kong (China)  0.3
19 Jul 2021 08:15 Imtin China  0.3
19 Jul 2021 08:15 Cheung Wo Hong Kong (China)  0.3
19 Jul 2021 08:15 Pak Sha Au Hong Kong (China)  0.3
19 Jul 2021 08:15 Long Ke Hong Kong (China)  0.3
19 Jul 2021 08:15 Khitschhung China  0.3
22 Jul 2021 00:00 Shuiwei China  0.3
19 Jul 2021 17:00 Chiu-chieh China  0.3
19 Jul 2021 17:00 Ngau Kwu Long Hong Kong (China)  0.3
19 Jul 2021 17:00 Castle Peak New Town Hong Kong (China)  0.3
19 Jul 2021 17:00 Tuen Mun Hong Kong (China)  0.3
19 Jul 2021 17:00 Ham Tin Hong Kong (China)  0.3
19 Jul 2021 15:00 Cheung Sha Wan Hong Kong (China)  0.3
19 Jul 2021 15:00 Tsz Wa Chan Hong Kong (China)  0.3
19 Jul 2021 15:00 Yau Ma Po Hong Kong (China)  0.3
19 Jul 2021 15:00 Sai Kung Hong Kong (China)  0.3
22 Jul 2021 00:30 Liusha China  0.3
22 Jul 2021 00:30 Mai-ch'en-hsu China  0.3
22 Jul 2021 00:00 Baishawan 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 07:15 Luzui China  0.3
19 Jul 2021 17:15 Yuen Long Hong Kong (China)  0.3
19 Jul 2021 17:15 Sz Pak Hong Kong (China)  0.3
22 Jul 2021 00:45 Bailong China  0.3
22 Jul 2021 00:45 Jiangshan China  0.3
22 Jul 2021 00:45 Fangcheng China  0.3
20 Jul 2021 14:00 Min-chung China  0.2
20 Jul 2021 14:00 Wan-ch'ing-sha China  0.2
20 Jul 2021 14:00 Cheng'anwei China  0.2
22 Jul 2021 00:30 Jiangping China  0.2
22 Jul 2021 00:30 Wanwei China  0.2
19 Jul 2021 14:15 Hsia-yung China  0.2
19 Jul 2021 14:15 Renshan China  0.2
19 Jul 2021 14:15 Jen-shan China  0.2
19 Jul 2021 14:15 Fanhe China  0.2
19 Jul 2021 14:15 Pinghai China  0.2
22 Jul 2021 00:15 Maichen China  0.2
21 Jul 2021 23:30 Mong Cai Vietnam  0.2
21 Jul 2021 23:30 Jiangpingxu China  0.2
20 Jul 2021 14:45 Shangyang China  0.2
19 Jul 2021 20:15 Houtian China  0.2
20 Jul 2021 21:15 Heping China  0.2
20 Jul 2021 19:15 Huangge China  0.2
20 Jul 2021 19:15 Jiang'ouwei China  0.2
20 Jul 2021 19:15 Fumunchai China  0.2
20 Jul 2021 19:15 Fumuntschai China  0.2
20 Jul 2021 19:15 Baihao China  0.2
20 Jul 2021 19:15 Taiping China  0.2
20 Jul 2021 19:15 Sha-ching China  0.2
22 Jul 2021 05:45 Paipu China  0.2
22 Jul 2021 05:45 Baimajing China  0.2
22 Jul 2021 05:45 Hsin-ying China  0.2
22 Jul 2021 05:45 Eman China  0.2
22 Jul 2021 05:45 Taan China  0.2
22 Jul 2021 05:45 Hsin-chou China  0.2
19 Jul 2021 14:45 Nam Wan Hong Kong (China)  0.2
19 Jul 2021 14:45 Hoi Pa Hong Kong (China)  0.2
19 Jul 2021 14:45 Lo Tik Wan Hong Kong (China)  0.2
19 Jul 2021 14:45 Tsuen Wan Hong Kong (China)  0.2
19 Jul 2021 14:45 Lo So Shing Hong Kong (China)  0.2
19 Jul 2021 14:45 Ha Kwai Chung Hong Kong (China)  0.2
19 Jul 2021 14:45 Pok Fu Lam Hong Kong (China)  0.2
19 Jul 2021 14:45 Wa Fu Estate Hong Kong (China)  0.2
19 Jul 2021 14:45 Kennedy Town Hong Kong (China)  0.2
19 Jul 2021 14:45 Aberdeen Hong Kong (China)  0.2
19 Jul 2021 14:45 Won Hang Hong Kong (China)  0.2
19 Jul 2021 14:45 Tain Sha Tsui Hong Kong (China)  0.2
19 Jul 2021 14:45 Central Hong Kong (China)  0.2
19 Jul 2021 14:45 Kowloon Hong Kong (China)  0.2
19 Jul 2021 14:45 Wan Chai Hong Kong (China)  0.2
19 Jul 2021 14:45 Chung Hom Kok Hong Kong (China)  0.2
19 Jul 2021 14:45 North Point Hong Kong (China)  0.2
19 Jul 2021 14:45 Chek Chue Hong Kong (China)  0.2
19 Jul 2021 14:45 Crocodile Hill Hong Kong (China)  0.2
22 Jul 2021 00:00 Qiaotou China  0.2
22 Jul 2021 01:30 Vinh Thuc Vietnam  0.2
22 Jul 2021 01:30 Cai Kien Vietnam  0.2
22 Jul 2021 01:30 Cot Doai Vietnam  0.2
21 Jul 2021 23:45 Xinxing China  0.2
19 Jul 2021 08:00 Tai Tam Hong Kong (China)  0.2
19 Jul 2021 08:00 Stanley Hong Kong (China)  0.2
19 Jul 2021 08:00 San Wan Ho Shau Hong Kong (China)  0.2
19 Jul 2021 08:00 Yau Tong Hong Kong (China)  0.2
19 Jul 2021 08:00 Rennie's Mill Hong Kong (China)  0.2
19 Jul 2021 08:00 A Kung Ngam Hong Kong (China)  0.2
19 Jul 2021 08:00 Chai Wan Hong Kong (China)  0.2
19 Jul 2021 08:00 Sau Mau Ping Hong Kong (China)  0.2
19 Jul 2021 08:00 Hok Tsui Wan Hong Kong (China)  0.2
19 Jul 2021 08:00 Chik Sha Hong Kong (China)  0.2
19 Jul 2021 08:00 Hang Hau Hong Kong (China)  0.2
19 Jul 2021 08:00 Tei Tong Tsui Hong Kong (China)  0.2
19 Jul 2021 08:00 Tai Wan Tau Hong Kong (China)  0.2
22 Jul 2021 02:00 Dang Noi Vietnam  0.2
22 Jul 2021 02:00 Dam Ha Vietnam  0.2
22 Jul 2021 02:00 Dong Cay Vietnam  0.2
21 Jul 2021 23:15 Guangcun China  0.2
22 Jul 2021 00:15 Xiuying China  0.2
19 Jul 2021 16:30 Houmen China  0.2
22 Jul 2021 00:15 Haian China  0.2
21 Jul 2021 01:30 Ma-hsieh China  0.2
21 Jul 2021 01:30 Badongxu China  0.2
21 Jul 2021 01:30 Potou China  0.2
21 Jul 2021 01:30 Bengtang China  0.2
21 Jul 2021 01:30 Baisha China  0.2
21 Jul 2021 01:30 Shaoyao China  0.2
21 Jul 2021 01:30 Xingyou China  0.2
21 Jul 2021 01:30 Huangpo China  0.2
21 Jul 2021 01:30 Chiu-wu-ch'uan China  0.2
21 Jul 2021 21:45 Haikou China  0.2
19 Jul 2021 10:45 Dongshan China  0.2
19 Jul 2021 10:45 Zhanjiang China  0.2
19 Jul 2021 10:45 Dongjian China  0.2
19 Jul 2021 10:45 Houhu China  0.2
19 Jul 2021 10:45 Houhai China  0.2
19 Jul 2021 10:45 Huangwu China  0.2
19 Jul 2021 10:45 Doulongcun China  0.2
21 Jul 2021 22:15 Puqian China  0.2
21 Jul 2021 21:45 Boshegang China  0.2
21 Jul 2021 21:45 Longtang China  0.2
20 Jul 2021 16:30 Diancheng China  0.2
20 Jul 2021 16:30 Rudong China  0.2
19 Jul 2021 15:30 Gangkou China  0.2
19 Jul 2021 14:15 Jiesheng China  0.2
19 Jul 2021 14:15 Tianqian China  0.2
19 Jul 2021 14:15 Zhelang China  0.2
19 Jul 2021 10:00 Nayan China  0.2
19 Jul 2021 14:30 Magong China  0.2
21 Jul 2021 18:00 Taiping China  0.2
21 Jul 2021 18:00 Longshe China  0.2
21 Jul 2021 17:45 Xianmai China  0.2
21 Jul 2021 17:45 Dongli China  0.2
21 Jul 2021 18:00 Tung-li China  0.2
19 Jul 2021 14:30 Jizhongtuo China  0.2
19 Jul 2021 14:00 Jieshi China  0.2
21 Jul 2021 22:00 Qianshan China  0.2
19 Jul 2021 14:00 Shanwei China  0.1
19 Jul 2021 14:15 Hudong China  0.1
19 Jul 2021 22:30 Pucheng China  0.1
19 Jul 2021 22:30 Sha-fan-chieh China  0.1
19 Jul 2021 22:30 Jinxiang China  0.1
22 Jul 2021 02:45 Ban Sen Vietnam  0.1
19 Jul 2021 10:30 Guanchang China  0.1
19 Jul 2021 10:30 Jinhe China  0.1
19 Jul 2021 10:30 Wai-lo 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 14:45 Shenquan China  0.1
19 Jul 2021 13:30 Jiazi China  0.1
19 Jul 2021 13:30 Changqingwei China  0.1
22 Jul 2021 03:45 Hon Gay Vietnam  0.1
22 Jul 2021 03:45 Lang Bang Vietnam  0.1
22 Jul 2021 03:45 Ha Tou Vietnam  0.1
22 Jul 2021 03:45 Cam Pha Vietnam  0.1
22 Jul 2021 03:45 Mong Duong Vietnam  0.1
22 Jul 2021 01:15 Gia Luan Vietnam  0.1
22 Jul 2021 01:15 Dong Vang Vietnam  0.1
21 Jul 2021 23:15 Nanluo China  0.1
21 Jul 2021 23:15 Haitou 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 09:00 Dahao China  0.1
21 Jul 2021 09:00 Aotou China  0.1
21 Jul 2021 09:00 Daitou China  0.1
21 Jul 2021 09:00 Guangao China  0.1
21 Jul 2021 09:00 Siwei China  0.1
21 Jul 2021 09:00 Houzhai China  0.1
19 Jul 2021 18:00 Chiang-t'ien China  0.1
22 Jul 2021 04:45 Huiwen China  0.1
22 Jul 2021 04:45 Chen Lan China  0.1
22 Jul 2021 04:45 Qinglan China  0.1
21 Jul 2021 04:00 Ubon Bi Vietnam  0.1
22 Jul 2021 03:30 Haiwei 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 Ch'ao-yang-hsien China  0.1
19 Jul 2021 13:45 Haimen China  0.1
19 Jul 2021 18:00 Guhuai China  0.1
19 Jul 2021 18:00 Chang-chiang China  0.1
19 Jul 2021 19:30 Wangchuan China  0.1
19 Jul 2021 19:30 Fengting China  0.1
19 Jul 2021 19:30 Dawu China  0.1
19 Jul 2021 19:30 Fengwei China  0.1
19 Jul 2021 19:30 Hsiao-tso China  0.1
19 Jul 2021 19:30 Zhongmen China  0.1
19 Jul 2021 14:00 Shantou China  0.1
21 Jul 2021 16:00 Hai-lu China  0.1
21 Jul 2021 16:15 Meilu China  0.1
22 Jul 2021 05:30 Fang-shan Taiwan  0.1
22 Jul 2021 05:30 Feng-chiang Taiwan  0.1
22 Jul 2021 05:30 She-liao Taiwan  0.1
22 Jul 2021 05:30 Che-cheng Taiwan  0.1
22 Jul 2021 05:30 Chia-ho-ts'un Taiwan  0.1
22 Jul 2021 05:30 Maobitou Taiwan  0.1
22 Jul 2021 05:30 Ta-kuang Taiwan  0.1