Overall Orange alert Tropical Cyclone for CEMPAKA-21
in China
23 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
Exposed population No people in Category 1 or higher
Maximum wind speed 61 km/h
Maximum storm surge 0.5 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 61 km/h 0.5 m 65 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 06:00 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 - - - - - - -
GREEN 19 23 Jul 2021 06:00 61 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 23 Jul 2021 06:00 UTC
LevelCountryPopulation 
250-500 mmLaos892 
100-250 mmChina, Vietnam, Laos, Thailand, Philippines12,795,625
+
China586,386 
Vietnam4,047,752 
Laos588,629 
Philippines4,527,294 
Thailand3,045,561 
50-100 mmChina, Vietnam, Laos, Philippines, Thailand22,213,267
+
China5,020,604 
Vietnam7,609,770 
Laos2,294,296 
Philippines2,865,257 
Thailand4,423,339 

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 68 -
- - - - - Vietnam
Blue 19 23 Jul 2021 06:00 259 12.8 million
- - - China, Vietnam, Laos, Philippines, Thailand




Impact estimation for the next 72h
TOP

StormSurge

0.5 m

The maximum Storm surge height is  0.5m 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 06:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Jul 2021 18:30 Sha-fan-chieh China  0.5
25 Jul 2021 18:30 Jinxiang China  0.5
25 Jul 2021 18:30 Pucheng China  0.5
25 Jul 2021 18:00 Shacheng China  0.4
25 Jul 2021 18:00 Xiaguan China  0.4
25 Jul 2021 18:45 Huang-ch'i China  0.4
25 Jul 2021 18:15 Yacheng China  0.4
25 Jul 2021 18:15 Sansha China  0.4
25 Jul 2021 18:15 Changchun China  0.4
25 Jul 2021 18:15 Wuqu China  0.4
25 Jul 2021 18:30 Luxia China  0.4
25 Jul 2021 20:45 Xiahu China  0.4
25 Jul 2021 20:45 Da'ao China  0.4
23 Jul 2021 07:00 San Shah China  0.4
23 Jul 2021 07:00 Gaoshan China  0.4
23 Jul 2021 07:00 Ta-ch'iu China  0.4
23 Jul 2021 07:00 Beicuo China  0.4
23 Jul 2021 07:00 Guanjing China  0.4
23 Jul 2021 07:00 Cao Yu China  0.4
23 Jul 2021 07:00 Qingfeng China  0.4
23 Jul 2021 07:00 Pingtan China  0.4
25 Jul 2021 20:15 Bili China  0.3
25 Jul 2021 20:15 Chien-chiang China  0.3
25 Jul 2021 20:15 Ting-hai China  0.3
25 Jul 2021 20:15 Anhai China  0.3
25 Jul 2021 20:15 Tung-ch'ung China  0.3
25 Jul 2021 20:00 Xinan China  0.3
25 Jul 2021 20:00 Ch'ang-t'an-wo Taiwan  0.3
25 Jul 2021 20:00 Tung-tai China  0.3
25 Jul 2021 20:00 Baisheng China  0.3
25 Jul 2021 20:00 Mabi China  0.3
25 Jul 2021 20:00 Guanban China  0.3
25 Jul 2021 19:45 Langqi China  0.3
25 Jul 2021 19:45 Changmen China  0.3
25 Jul 2021 19:45 Fengwo China  0.3
25 Jul 2021 19:45 Yunlong China  0.3
25 Jul 2021 20:00 Tantou China  0.3
25 Jul 2021 20:15 Chin-feng China  0.3
25 Jul 2021 20:15 Wuhang China  0.3
25 Jul 2021 20:45 Chiang-t'ien China  0.3
25 Jul 2021 20:45 Chang-chiang China  0.3
25 Jul 2021 21:00 Guhuai China  0.3
25 Jul 2021 20:45 Houtian China  0.3
25 Jul 2021 21:30 Fuye China  0.2
25 Jul 2021 22:15 Chiang-k'ou China  0.2
25 Jul 2021 22:15 Daitou China  0.2
25 Jul 2021 22:15 Tangbian China  0.2
25 Jul 2021 22:15 Shicheng China  0.2
25 Jul 2021 22:15 Jiangjing China  0.2
25 Jul 2021 22:15 Gangtou China  0.2
25 Jul 2021 22:15 Yuxi China  0.2
25 Jul 2021 22:15 Longtian China  0.2
25 Jul 2021 21:45 Nanri China  0.2
25 Jul 2021 21:30 Wangchuan China  0.2
25 Jul 2021 21:30 Fengting China  0.2
25 Jul 2021 21:30 Dawu China  0.2
25 Jul 2021 21:30 Fengwei China  0.2
25 Jul 2021 21:30 Hsiao-tso China  0.2
25 Jul 2021 21:30 Zhongmen China  0.2
25 Jul 2021 21:15 P'u-hsi China  0.2
25 Jul 2021 21:15 P'u-hsi-ch'eng China  0.2
25 Jul 2021 21:15 Meizhou China  0.2
25 Jul 2021 22:15 Pinghai China  0.2
25 Jul 2021 21:15 Dongsha China  0.2
25 Jul 2021 21:15 Lingchuan China  0.2
25 Jul 2021 21:15 Hushi 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
23 Jul 2021 07:45 Yingluo China  0.2
25 Jul 2021 21:45 Ch'i-ting Taiwan  0.2
25 Jul 2021 21:00 Qian'an China  0.2
25 Jul 2021 21:00 Chongwu China  0.2
24 Jul 2021 16:15 Caotan China  0.2
24 Jul 2021 16:15 Longtousha China  0.2
24 Jul 2021 16:15 Yingzai China  0.2
25 Jul 2021 21:45 Tung-hsiao Taiwan  0.2
25 Jul 2021 21:45 Hai huang Taiwan  0.2
25 Jul 2021 21:45 Yuan-li Taiwan  0.2
25 Jul 2021 20:30 Shih-shih China  0.2
25 Jul 2021 20:30 Yakou China  0.2
25 Jul 2021 20:30 Yongning China  0.2
25 Jul 2021 20:30 Shihu China  0.2
25 Jul 2021 20:30 Dongyuan China  0.2
25 Jul 2021 20:30 Hsiang-chih China  0.2
25 Jul 2021 20:30 Zhangban China  0.2
25 Jul 2021 21:45 Ching-shui Taiwan  0.2
25 Jul 2021 21:45 Lu-kang Taiwan  0.1
25 Jul 2021 19:45 Weitou China  0.1
25 Jul 2021 19:45 Chin-ching China  0.1
25 Jul 2021 20:15 Ch'ing-hsu Taiwan  0.1
25 Jul 2021 20:15 Shijing China  0.1
25 Jul 2021 20:15 Chin-men Tao Taiwan  0.1
25 Jul 2021 20:15 Yang-chai Taiwan  0.1
25 Jul 2021 20:15 Tung-shih China  0.1
25 Jul 2021 21:30 Sha-shan Taiwan  0.1
25 Jul 2021 21:30 Wang-kung Taiwan  0.1
23 Jul 2021 06:00 Gaode China  0.1
23 Jul 2021 06:00 Guchengling China  0.1
25 Jul 2021 20:15 Lianhe China  0.1
25 Jul 2021 20:15 Anhai China  0.1
23 Jul 2021 06:00 Beihai China  0.1
25 Jul 2021 20:30 Chin-men 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
25 Jul 2021 21:15 San-hsing Taiwan  0.1
25 Jul 2021 21:15 T'ai-hsi Taiwan  0.1
23 Jul 2021 06:00 Hsi-ch'ang-hsu China  0.1
23 Jul 2021 06:00 Hsi-ch'ang China  0.1
23 Jul 2021 06:00 Shagang China  0.1
23 Jul 2021 06:00 Dangjiang China  0.1
23 Jul 2021 06:00 Qianjiang China  0.1
23 Jul 2021 06:00 Guanjing China  0.1
25 Jul 2021 21:45 Chung-ch'i Taiwan  0.1
25 Jul 2021 20:00 Aotou China  0.1
25 Jul 2021 20:00 An-ting Taiwan  0.1
23 Jul 2021 06:15 Ch'i-shui China  0.1
23 Jul 2021 06:15 Haikang China  0.1
25 Jul 2021 21:30 Sa-ti Taiwan  0.1
25 Jul 2021 21:30 Hai-kou Taiwan  0.1
25 Jul 2021 19:45 Hecuo China  0.1
25 Jul 2021 19:15 Songyu China  0.1
25 Jul 2021 19:15 Hsing-lin China  0.1
25 Jul 2021 19:15 Xucuo China  0.1
25 Jul 2021 19:15 Gulangyu China  0.1
25 Jul 2021 19:15 Xiamen China  0.1
25 Jul 2021 19:15 Chen-hai China  0.1
25 Jul 2021 19:15 Daomei China  0.1
25 Jul 2021 19:15 Dianqian China  0.1
25 Jul 2021 19:15 Jiangtou China  0.1
25 Jul 2021 19:15 Zhenhai China  0.1
25 Jul 2021 19:15 Liuwudian China  0.1
25 Jul 2021 20:45 Fugong China  0.1
25 Jul 2021 20:45 Haicang China  0.1
25 Jul 2021 20:45 Guankou China  0.1
25 Jul 2021 20:45 Gangwei China  0.1
25 Jul 2021 21:45 Hsin-chiang Taiwan  0.1
25 Jul 2021 21:45 Hsia-lun Taiwan  0.1
25 Jul 2021 21:45 Wu-nan Taiwan  0.1
25 Jul 2021 18:30 Wai-an Taiwan  0.1
25 Jul 2021 18:30 Chu-kao-wan Taiwan  0.1
25 Jul 2021 18:30 Feng-kuei-li Taiwan  0.1
25 Jul 2021 18:30 Ch'ang-an Taiwan  0.1
25 Jul 2021 18:30 P'eng-hu-erh-ts'un Taiwan  0.1
25 Jul 2021 18:30 Ma-kung Taiwan  0.1
25 Jul 2021 18:30 Ch'eng-ch'ien Taiwan  0.1
25 Jul 2021 18:30 Chi-pei Taiwan  0.1
25 Jul 2021 18:30 Lung-men Taiwan  0.1
23 Jul 2021 07:00 Qiaotou China  0.1
25 Jul 2021 18:15 Hua-hsu Taiwan  0.1
23 Jul 2021 06:00 Liu-sha-ying China  0.1
25 Jul 2021 18:15 Chu-mu-shui Taiwan  0.1
25 Jul 2021 18:00 Chiang-chun-ao Taiwan  0.1
25 Jul 2021 20:00 Fotan China  0.1
25 Jul 2021 17:45 Chang-t'an Taiwan  0.1
23 Jul 2021 06:45 Gongche China  0.1
23 Jul 2021 06:45 Ch'i-sha China  0.1
25 Jul 2021 19:45 Chihu China  0.1
23 Jul 2021 06:00 Shuiwei China  0.1
26 Jul 2021 02:45 Xindian China  0.1
26 Jul 2021 02:15 Ma-chiang China  0.1
23 Jul 2021 06:15 Liusha China  0.1
23 Jul 2021 06:15 Mai-ch'en-hsu China  0.1
25 Jul 2021 18:15 Yung-lung Taiwan  0.1
25 Jul 2021 18:15 Fu-hsing Taiwan  0.1
25 Jul 2021 18:15 Pu-tai Taiwan  0.1
23 Jul 2021 06:45 Guangcun China  0.1
23 Jul 2021 06:45 Xinxing China  0.1
25 Jul 2021 18:15 Chung-p'ing Taiwan  0.1
25 Jul 2021 19:45 Shentu China  0.1
23 Jul 2021 06:00 Xiuying China  0.1
23 Jul 2021 06:00 Haikou China  0.1
23 Jul 2021 07:45 Paipu China  0.1
23 Jul 2021 07:45 Baimajing China  0.1
23 Jul 2021 07:45 Hsin-ying China  0.1
23 Jul 2021 07:45 Eman China  0.1
23 Jul 2021 07:45 Taan China  0.1
23 Jul 2021 07:45 Hsin-chou 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
24 Jul 2021 10:30 Bailong China  0.1
24 Jul 2021 10:30 Jiangshan China  0.1
24 Jul 2021 10:30 Baishawan China  0.1
24 Jul 2021 10:30 Fangcheng China  0.1
25 Jul 2021 17:30 Chiang-chun Taiwan  0.1
23 Jul 2021 06:15 Maichen China  0.1
24 Jul 2021 12:30 Hsia-yung China  0.1
24 Jul 2021 12:30 Renshan China  0.1
24 Jul 2021 12:30 Jen-shan China  0.1
24 Jul 2021 12:30 Fanhe China  0.1
24 Jul 2021 12:30 Pinghai China  0.1