Overall Orange alert Tropical Cyclone for CEMPAKA-21
in China
23 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
Exposed population No people in Category 1 or higher
Maximum wind speed 68 km/h
Maximum storm surge 0.6 m (25 Jul 18:30 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 68 km/h 0.6 m 68 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

No people by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 23 Jul 2021 00:00 UTC

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 94 - - - - - - -
GREEN 4 19 Jul 2021 12:00 108 -
- - - - - China
GREEN 5 19 Jul 2021 18:00 112 - - - - - - -
GREEN 6 20 Jul 2021 00:00 144 -
- - - - - China
GREEN 7 20 Jul 2021 06:00 126 -
- - - - - China
GREEN 8 20 Jul 2021 12:00 119 -
- - - - - China
GREEN 9 20 Jul 2021 18:00 65 -
- - - - - China
GREEN 10 21 Jul 2021 00:00 54 - - - - - - -
GREEN 11 21 Jul 2021 06:00 58 - - - - - - -
GREEN 12 21 Jul 2021 12:00 58 - - - - - - -
GREEN 13 21 Jul 2021 18:00 54 - - - - - - -
GREEN 14 22 Jul 2021 00:00 61 -
- - - - - Taiwan
GREEN 15 22 Jul 2021 06:00 61 -
- - - - - Taiwan
GREEN 16 22 Jul 2021 12:00 54 - - - - - - -
GREEN 17 22 Jul 2021 18:00 58 - - - - - - -
GREEN 18 23 Jul 2021 00:00 68 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 23 Jul 2021 00:00 UTC
LevelCountryPopulation 
250-500 mmLaos10,122 
100-250 mmChina, Vietnam, Laos, Thailand, Philippines18,351,233
+
China532,674 
Vietnam6,249,647 
Laos1,963,722 
Philippines5,052,985 
Thailand4,552,203 
50-100 mmChina, Vietnam, Laos, Philippines, Thailand, Cambodia37,611,530
+
China10,998,667 
Vietnam20,059,543 
Laos1,177,064 
Philippines2,571,011 
Thailand2,784,351 
Cambodia20,891 

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 06:00 157 -
- - - - - Hong Kong, China
Blue 4 19 Jul 2021 12:00 126 - - - - - - -
Blue 5 19 Jul 2021 18:00 223 -
- - - - - Laos, Vietnam
Blue 6 20 Jul 2021 00:00 221 Few people
- - - - China, Laos, Thailand
Blue 7 20 Jul 2021 06:00 274 170 thousand
- - - - China
Blue 8 20 Jul 2021 12:00 187 440 thousand
- - - - China
Blue 9 20 Jul 2021 18:00 151 790 thousand
- - - - China
Blue 10 21 Jul 2021 00:00 75 -
- - - - - China
Blue 11 21 Jul 2021 06:00 66 -
- - - - - China
Blue 12 21 Jul 2021 12:00 103 Few people
- - - - China, Laos, Thailand
Blue 13 21 Jul 2021 18:00 107 10 thousand
- - - - China, Laos, Thailand
Blue 14 22 Jul 2021 00:00 103 -
- - - - - China
Blue 15 22 Jul 2021 06:00 39 - - - - - - -
Blue 16 22 Jul 2021 12:00 62 -
- - - - - Philippines
Blue 17 22 Jul 2021 18:00 147 680 thousand
- - - - China, Laos, Thailand, Philippines
Blue 18 23 Jul 2021 00:00 300 18.4 million
- - - China, Vietnam, Laos, Philippines, Thailand, Cambodia




Impact estimation for the next 72h
TOP

StormSurge

0.6 m

The maximum Storm surge height is  0.6m in Sha-fan-chieh, China. This height is estimated for 25 Jul 2021 18:30 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 23 Jul 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Jul 2021 18:30 Sha-fan-chieh China  0.6
25 Jul 2021 18:30 Jinxiang China  0.6
25 Jul 2021 18:30 Pucheng China  0.6
25 Jul 2021 17:30 Shacheng China  0.5
25 Jul 2021 17:30 Xiaguan China  0.5
25 Jul 2021 17:15 Huang-ch'i China  0.5
25 Jul 2021 18:00 Yacheng China  0.5
25 Jul 2021 18:00 Sansha China  0.5
25 Jul 2021 18:00 Changchun China  0.5
25 Jul 2021 18:00 Wuqu China  0.5
25 Jul 2021 18:15 Xiahu China  0.5
25 Jul 2021 18:15 Da'ao China  0.5
25 Jul 2021 18:15 Luxia China  0.5
25 Jul 2021 18:00 Ting-hai China  0.4
25 Jul 2021 18:00 Anhai China  0.4
25 Jul 2021 18:00 Tung-ch'ung China  0.4
25 Jul 2021 18:15 Xinan China  0.4
25 Jul 2021 18:00 Bili China  0.4
25 Jul 2021 18:00 Chien-chiang China  0.4
25 Jul 2021 18:00 Ch'ang-t'an-wo Taiwan  0.4
25 Jul 2021 18:15 Tung-tai China  0.4
25 Jul 2021 18:15 Baisheng China  0.4
25 Jul 2021 18:15 Mabi China  0.4
25 Jul 2021 18:15 Guanban China  0.4
25 Jul 2021 18:45 Langqi China  0.4
25 Jul 2021 18:45 Changmen China  0.4
25 Jul 2021 18:45 Fengwo China  0.4
25 Jul 2021 18:45 Yunlong China  0.4
25 Jul 2021 18:45 Tantou China  0.4
23 Jul 2021 07:15 San Shah China  0.4
23 Jul 2021 07:15 Gaoshan China  0.4
23 Jul 2021 07:15 Ta-ch'iu China  0.4
23 Jul 2021 07:15 Beicuo China  0.4
23 Jul 2021 07:15 Guanjing China  0.4
23 Jul 2021 07:15 Cao Yu China  0.4
23 Jul 2021 07:15 Qingfeng China  0.4
23 Jul 2021 07:15 Pingtan China  0.4
25 Jul 2021 18:30 Chin-feng China  0.4
25 Jul 2021 18:30 Wuhang China  0.4
25 Jul 2021 19:45 Chiang-t'ien China  0.4
25 Jul 2021 19:45 Chang-chiang China  0.4
25 Jul 2021 20:00 Guhuai China  0.4
25 Jul 2021 20:00 Houtian China  0.3
25 Jul 2021 21:30 Chiang-k'ou China  0.3
25 Jul 2021 21:30 Daitou China  0.3
25 Jul 2021 21:30 Tangbian China  0.3
25 Jul 2021 21:30 Shicheng China  0.3
25 Jul 2021 21:30 Jiangjing China  0.3
25 Jul 2021 21:30 Gangtou China  0.3
25 Jul 2021 21:30 Yuxi China  0.3
25 Jul 2021 21:30 Longtian China  0.3
25 Jul 2021 21:00 Nanri China  0.3
25 Jul 2021 21:00 Fuye China  0.3
25 Jul 2021 22:00 Wangchuan China  0.3
25 Jul 2021 22:00 Fengting China  0.3
25 Jul 2021 22:00 Dawu China  0.3
25 Jul 2021 22:00 Fengwei China  0.3
25 Jul 2021 22:00 Hsiao-tso China  0.3
25 Jul 2021 22:00 Zhongmen China  0.3
25 Jul 2021 21:00 Pinghai China  0.3
25 Jul 2021 21:15 P'u-hsi China  0.3
25 Jul 2021 21:15 P'u-hsi-ch'eng China  0.3
25 Jul 2021 21:15 Meizhou China  0.3
25 Jul 2021 21:15 Dongsha China  0.3
25 Jul 2021 21:15 Lingchuan China  0.3
25 Jul 2021 21:15 Hushi China  0.3
25 Jul 2021 19:45 Ch'i-ting Taiwan  0.2
25 Jul 2021 21:30 Qian'an China  0.2
25 Jul 2021 21:30 Chongwu China  0.2
25 Jul 2021 19:45 Tung-hsiao Taiwan  0.2
25 Jul 2021 19:45 Hai huang Taiwan  0.2
25 Jul 2021 19:45 Yuan-li Taiwan  0.2
25 Jul 2021 19:45 Ching-shui Taiwan  0.2
25 Jul 2021 21:00 Shih-shih China  0.2
25 Jul 2021 21:00 Yakou China  0.2
25 Jul 2021 21:00 Yongning China  0.2
25 Jul 2021 21:00 Shihu China  0.2
25 Jul 2021 21:00 Dongyuan China  0.2
25 Jul 2021 21:00 Hsiang-chih China  0.2
25 Jul 2021 21:00 Zhangban China  0.2
23 Jul 2021 07:45 Bailong China  0.2
23 Jul 2021 07:45 Beimu China  0.2
23 Jul 2021 07:45 Yong'an China  0.2
23 Jul 2021 07:45 Shankou China  0.2
25 Jul 2021 19:30 Lu-kang Taiwan  0.2
23 Jul 2021 07:45 Yingluo China  0.2
24 Jul 2021 20:15 Caotan China  0.2
24 Jul 2021 20:15 Longtousha China  0.2
24 Jul 2021 20:15 Yingzai China  0.2
25 Jul 2021 22:15 Weitou China  0.2
25 Jul 2021 22:15 Chin-ching China  0.2
25 Jul 2021 19:00 Sha-shan Taiwan  0.2
25 Jul 2021 19:00 Wang-kung Taiwan  0.2
25 Jul 2021 19:00 San-hsing Taiwan  0.2
25 Jul 2021 19:00 T'ai-hsi Taiwan  0.2
25 Jul 2021 18:45 Chung-ch'i Taiwan  0.2
25 Jul 2021 21:15 Chin-men Taiwan  0.2
25 Jul 2021 21:15 Lianhe China  0.2
25 Jul 2021 21:15 Ch'ing-hsu Taiwan  0.2
25 Jul 2021 21:15 Shijing China  0.2
25 Jul 2021 21:15 Chin-men Tao Taiwan  0.2
25 Jul 2021 21:15 Yang-chai Taiwan  0.2
25 Jul 2021 19:30 Anhai China  0.2
25 Jul 2021 19:30 Tung-shih China  0.2
25 Jul 2021 18:00 Sa-ti Taiwan  0.2
25 Jul 2021 18:00 Hai-kou Taiwan  0.2
25 Jul 2021 18:45 Chu-kao-wan Taiwan  0.2
25 Jul 2021 18:45 Ch'ang-an Taiwan  0.2
25 Jul 2021 18:45 Ch'eng-ch'ien Taiwan  0.2
25 Jul 2021 18:45 Chi-pei Taiwan  0.2
25 Jul 2021 20:30 Aotou China  0.2
25 Jul 2021 20:30 An-ting Taiwan  0.2
25 Jul 2021 18:45 Wai-an Taiwan  0.2
25 Jul 2021 18:45 Feng-kuei-li Taiwan  0.2
25 Jul 2021 18:45 P'eng-hu-erh-ts'un Taiwan  0.2
25 Jul 2021 18:45 Ma-kung Taiwan  0.2
25 Jul 2021 18:45 Lung-men Taiwan  0.2
25 Jul 2021 18:15 Hsia-lun Taiwan  0.2
25 Jul 2021 18:00 Hsin-chiang Taiwan  0.1
25 Jul 2021 18:00 Wu-nan Taiwan  0.1
25 Jul 2021 20:45 Hecuo China  0.1
25 Jul 2021 18:30 Songyu China  0.1
25 Jul 2021 18:30 Hsing-lin China  0.1
25 Jul 2021 18:30 Xucuo China  0.1
25 Jul 2021 18:30 Gulangyu China  0.1
25 Jul 2021 18:30 Xiamen China  0.1
25 Jul 2021 18:30 Chen-hai China  0.1
25 Jul 2021 18:30 Daomei China  0.1
25 Jul 2021 18:30 Dianqian China  0.1
25 Jul 2021 18:30 Jiangtou China  0.1
25 Jul 2021 18:30 Zhenhai China  0.1
25 Jul 2021 18:30 Liuwudian China  0.1
23 Jul 2021 05:00 Beihai China  0.1
23 Jul 2021 05:00 Gaode China  0.1
23 Jul 2021 05:00 Guchengling China  0.1
25 Jul 2021 21:15 Fugong China  0.1
25 Jul 2021 21:15 Haicang China  0.1
25 Jul 2021 21:15 Gangwei China  0.1
25 Jul 2021 18:45 Chu-mu-shui Taiwan  0.1
25 Jul 2021 20:45 Guankou China  0.1
23 Jul 2021 02:45 Ch'i-shui China  0.1
23 Jul 2021 02:45 Haikang China  0.1
25 Jul 2021 18:00 Yung-lung Taiwan  0.1
25 Jul 2021 18:00 Fu-hsing Taiwan  0.1
25 Jul 2021 18:00 Pu-tai Taiwan  0.1
25 Jul 2021 18:00 Chang-t'an Taiwan  0.1
25 Jul 2021 18:30 Hua-hsu Taiwan  0.1
23 Jul 2021 07:00 Longmen China  0.1
23 Jul 2021 07:00 Dafanpo China  0.1
23 Jul 2021 07:00 Hsi-niu-chiao China  0.1
23 Jul 2021 07:00 Pingshan China  0.1
23 Jul 2021 05:45 Hsi-ch'ang-hsu China  0.1
23 Jul 2021 05:45 Hsi-ch'ang China  0.1
23 Jul 2021 05:45 Shagang China  0.1
23 Jul 2021 05:45 Dangjiang China  0.1
23 Jul 2021 05:45 Qianjiang China  0.1
26 Jul 2021 00:00 Xindian China  0.1
26 Jul 2021 00:00 Ma-chiang China  0.1
25 Jul 2021 18:30 Chiang-chun-ao Taiwan  0.1
23 Jul 2021 05:45 Guanjing China  0.1
25 Jul 2021 20:30 Fotan China  0.1
24 Jul 2021 13:00 Cheung Sha Wan Hong Kong (China)  0.1
24 Jul 2021 13:00 Tai Po Hong Kong (China)  0.1
24 Jul 2021 13:00 Tai Po Industrial Estate Hong Kong (China)  0.1
24 Jul 2021 13:00 Fung Yuen Hong Kong (China)  0.1
24 Jul 2021 13:00 Dabu Hong Kong (China)  0.1
24 Jul 2021 13:00 Tsz Wa Chan Hong Kong (China)  0.1
24 Jul 2021 13:00 Sha Tau Kok China  0.1
24 Jul 2021 13:00 Cheung Kang Hong Kong (China)  0.1
24 Jul 2021 13:00 Imtin China  0.1
24 Jul 2021 13:00 Yau Ma Po Hong Kong (China)  0.1
24 Jul 2021 13:00 Sai Kung Hong Kong (China)  0.1
24 Jul 2021 13:00 Cheung Wo Hong Kong (China)  0.1
24 Jul 2021 13:00 Pak Sha Au Hong Kong (China)  0.1
24 Jul 2021 13:00 Long Ke Hong Kong (China)  0.1
24 Jul 2021 13:00 Khitschhung China  0.1
24 Jul 2021 13:00 Yuen Long Hong Kong (China)  0.1
25 Jul 2021 17:45 Chiang-chun Taiwan  0.1
25 Jul 2021 20:30 Chung-p'ing Taiwan  0.1
25 Jul 2021 20:00 Chihu China  0.1
23 Jul 2021 07:00 Qiaotou China  0.1
23 Jul 2021 06:00 Liu-sha-ying China  0.1
25 Jul 2021 19:45 Shentu China  0.1
25 Jul 2021 17:45 An-ping Taiwan  0.1
25 Jul 2021 17:45 San-ku-ts'un Taiwan  0.1
23 Jul 2021 02:45 Paipu China  0.1
23 Jul 2021 02:45 Baimajing China  0.1
23 Jul 2021 02:45 Hsin-ying China  0.1
23 Jul 2021 02:45 Eman China  0.1
23 Jul 2021 02:45 Taan China  0.1
23 Jul 2021 02:45 Hsin-chou China  0.1
23 Jul 2021 06:00 Shuiwei China  0.1
23 Jul 2021 06:45 Gongche China  0.1
23 Jul 2021 06:45 Ch'i-sha China  0.1
23 Jul 2021 06:45 Liusha China  0.1
23 Jul 2021 06:45 Mai-ch'en-hsu China  0.1
23 Jul 2021 05:45 Xiuying China  0.1
23 Jul 2021 05:45 Haikou China  0.1
23 Jul 2021 06:45 Guangcun China  0.1
23 Jul 2021 06:45 Xinxing China  0.1
25 Jul 2021 19:45 Jiuzhen China  0.1
25 Jul 2021 19:45 Liu'ao China  0.1
23 Jul 2021 05:45 Maichen China  0.1
23 Jul 2021 07:00 Mong Cai Vietnam  0.1
23 Jul 2021 07:00 Jiangpingxu China  0.1
23 Jul 2021 07:00 Jiangping China  0.1
23 Jul 2021 07:00 Wanwei China  0.1
23 Jul 2021 05:45 Puqian China  0.1