Overall Orange alert Tropical Cyclone for CEMPAKA-21
in China
23 Jul 2021 12 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
Exposed population No people in Category 1 or higher
Maximum wind speed 61 km/h
Maximum storm surge 0.7 m (25 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 61 km/h 0.7 m 156 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)

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Wind

72 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 12:00 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 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 54 - - - - - - -
GREEN 8 21 Jul 2021 12:00 58 - - - - - - -
GREEN 9 22 Jul 2021 00:00 58 - - - - - - -
GREEN 10 22 Jul 2021 12:00 68 - - - - - - -
GREEN 11 23 Jul 2021 00:00 61 - - - - - - -
GREEN 12 23 Jul 2021 12:00 65 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 23 Jul 2021 12:00 UTC
LevelCountryPopulation 
250-500 mmChina, Taiwan, Laos, Thailand, Philippines904,466
+
China689,924 
Taiwan144 
Laos3,102 
Philippines45,337 
Thailand165,956 
100-250 mmChina, Taiwan, Vietnam, Laos, Philippines, Thailand18,304,955
+
China4,648,129 
Taiwan450,609 
Vietnam3,699,975 
Laos1,845,658 
Philippines3,428,332 
Thailand4,232,249 
50-100 mmChina, Taiwan, Vietnam, Laos, Philippines, Thailand, Cambodia29,839,847
+
China11,175,843 
Taiwan6,567,091 
Vietnam3,828,500 
Laos1,521,619 
Philippines2,779,119 
Thailand3,961,413 
Cambodia6,260 

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 00:00 101 Few people
- - - - China, Philippines
Blue 8 21 Jul 2021 12:00 215 310 thousand
- - - - China, Philippines
Blue 9 22 Jul 2021 00:00 102 1 thousand
- - - - China, Philippines
Blue 10 22 Jul 2021 12:00 140 680 thousand
- - - - China, Vietnam, Laos, Philippines
Blue 11 23 Jul 2021 00:00 127 70 thousand
- - - - China, Vietnam, Laos, Philippines
Blue 12 23 Jul 2021 12:00 427 19.2 million
- - - China, Taiwan, Vietnam, Laos, Philippines, Thailand, Cambodia




Impact estimation for the next 72h
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StormSurge

0.7 m

The maximum Storm surge height is  0.7m in Sha-fan-chieh, China. This height is estimated for 25 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 23 Jul 2021 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Jul 2021 15:45 Sha-fan-chieh China  0.7
25 Jul 2021 15:45 Jinxiang China  0.7
25 Jul 2021 16:00 Pucheng China  0.7
26 Jul 2021 12:00 Shacheng China  0.6
26 Jul 2021 12:00 Xiaguan China  0.6
26 Jul 2021 12:00 Huang-ch'i China  0.6
26 Jul 2021 12:00 Yacheng China  0.6
26 Jul 2021 12:00 Sansha China  0.6
26 Jul 2021 12:00 Xiahu China  0.6
26 Jul 2021 12:00 Da'ao China  0.6
26 Jul 2021 12:00 Changchun China  0.6
26 Jul 2021 12:00 Luxia China  0.6
26 Jul 2021 12:00 Wuqu China  0.5
26 Jul 2021 12:00 Tung-ch'ung China  0.5
26 Jul 2021 12:00 Xinan China  0.5
26 Jul 2021 12:00 Bili China  0.5
26 Jul 2021 12:00 Chien-chiang China  0.5
26 Jul 2021 12:00 Anhai China  0.5
26 Jul 2021 12:00 Ting-hai China  0.5
26 Jul 2021 12:00 Ch'ang-t'an-wo Taiwan  0.5
26 Jul 2021 12:00 Tung-tai China  0.5
26 Jul 2021 12:00 Baisheng China  0.5
26 Jul 2021 12:00 Mabi China  0.5
26 Jul 2021 12:00 Guanban China  0.5
26 Jul 2021 12:00 Langqi China  0.4
26 Jul 2021 12:00 Changmen China  0.4
26 Jul 2021 12:00 Fengwo China  0.4
26 Jul 2021 12:00 Yunlong China  0.4
26 Jul 2021 12:00 Tantou China  0.4
26 Jul 2021 12:00 Chin-feng China  0.4
26 Jul 2021 12:00 Wuhang China  0.4
26 Jul 2021 11:45 Chiang-t'ien China  0.4
26 Jul 2021 11:45 Chang-chiang China  0.4
26 Jul 2021 12:00 Guhuai China  0.4
26 Jul 2021 11:45 Qingfeng China  0.4
26 Jul 2021 12:00 Guanjing China  0.4
26 Jul 2021 11:45 Pingtan China  0.3
26 Jul 2021 11:45 Houtian China  0.3
26 Jul 2021 11:45 Beicuo China  0.3
23 Jul 2021 13:30 San Shah China  0.3
23 Jul 2021 13:30 Gaoshan China  0.3
23 Jul 2021 13:30 Ta-ch'iu China  0.3
23 Jul 2021 13:30 Cao Yu China  0.3
26 Jul 2021 12:00 Yuxi China  0.3
26 Jul 2021 12:00 Tangbian China  0.3
26 Jul 2021 12:00 Jiangjing China  0.3
26 Jul 2021 12:00 Longtian China  0.3
26 Jul 2021 12:00 Gangtou China  0.3
26 Jul 2021 12:00 Shicheng China  0.3
26 Jul 2021 12:00 Chiang-k'ou China  0.3
26 Jul 2021 12:00 Daitou China  0.3
26 Jul 2021 12:00 Fuye China  0.3
26 Jul 2021 12:00 Nanri China  0.3
26 Jul 2021 12:00 Pinghai China  0.2
26 Jul 2021 12:00 Ch'i-ting Taiwan  0.2
26 Jul 2021 12:00 Tung-hsiao Taiwan  0.2
26 Jul 2021 12:00 P'u-hsi China  0.2
26 Jul 2021 12:00 P'u-hsi-ch'eng China  0.2
26 Jul 2021 12:00 Meizhou China  0.2
26 Jul 2021 12:00 Hai huang Taiwan  0.2
26 Jul 2021 12:00 Yuan-li Taiwan  0.2
26 Jul 2021 12:00 Zhongmen China  0.2
26 Jul 2021 12:00 Hushi China  0.2
25 Jul 2021 20:00 Wangchuan China  0.2
25 Jul 2021 20:00 Fengting China  0.2
25 Jul 2021 20:00 Dawu China  0.2
25 Jul 2021 20:00 Fengwei China  0.2
25 Jul 2021 20:00 Hsiao-tso China  0.2
26 Jul 2021 12:00 Dongsha China  0.2
26 Jul 2021 12:00 Lingchuan China  0.2
26 Jul 2021 12:00 Ching-shui Taiwan  0.2
26 Jul 2021 12:00 Qian'an China  0.2
26 Jul 2021 12:00 Chongwu China  0.2
26 Jul 2021 12:00 Dianqian China  0.2
26 Jul 2021 12:00 Jiangtou China  0.2
26 Jul 2021 12:00 Hecuo China  0.2
26 Jul 2021 12:00 Liuwudian China  0.2
26 Jul 2021 12:00 Aotou China  0.2
26 Jul 2021 12:00 Xindian China  0.2
26 Jul 2021 12:00 An-ting Taiwan  0.2
26 Jul 2021 12:00 Ma-chiang China  0.2
26 Jul 2021 12:00 Chin-men Taiwan  0.2
26 Jul 2021 12:00 Lianhe China  0.2
26 Jul 2021 12:00 Ch'ing-hsu Taiwan  0.2
26 Jul 2021 12:00 Shijing China  0.2
24 Jul 2021 12:45 Beimu China  0.2
24 Jul 2021 12:45 Yong'an China  0.2
24 Jul 2021 12:45 Shankou China  0.2
24 Jul 2021 12:45 Yingluo China  0.2
25 Jul 2021 11:15 Chin-men Tao Taiwan  0.2
25 Jul 2021 11:15 Yang-chai Taiwan  0.2
25 Jul 2021 11:15 Weitou China  0.2
25 Jul 2021 11:15 Chin-ching China  0.2
26 Jul 2021 12:00 Hsiang-chih China  0.2
26 Jul 2021 12:00 Zhangban China  0.2
24 Jul 2021 12:45 Bailong China  0.2
25 Jul 2021 18:30 Shih-shih China  0.2
25 Jul 2021 18:30 Yakou China  0.2
25 Jul 2021 18:30 Yongning China  0.2
25 Jul 2021 18:30 Shihu China  0.2
25 Jul 2021 18:30 Dongyuan China  0.2
26 Jul 2021 10:45 Lu-kang Taiwan  0.2
24 Jul 2021 13:30 Caotan China  0.2
26 Jul 2021 10:45 Sha-shan Taiwan  0.1
26 Jul 2021 10:45 Wang-kung Taiwan  0.1
24 Jul 2021 14:30 Guanjing China  0.1
24 Jul 2021 14:30 Hsi-ch'ang-hsu China  0.1
24 Jul 2021 14:30 Hsi-ch'ang China  0.1
24 Jul 2021 14:30 Shagang China  0.1
24 Jul 2021 13:15 Mong Cai Vietnam  0.1
24 Jul 2021 13:15 Jiangpingxu China  0.1
24 Jul 2021 13:15 Jiangping China  0.1
24 Jul 2021 13:15 Wanwei China  0.1
24 Jul 2021 13:15 Longtousha China  0.1
24 Jul 2021 13:30 Bailong China  0.1
24 Jul 2021 13:30 Jiangshan China  0.1
24 Jul 2021 11:45 Beihai China  0.1
24 Jul 2021 11:45 Gaode China  0.1
24 Jul 2021 11:45 Guchengling China  0.1
24 Jul 2021 15:30 Yingzai China  0.1
24 Jul 2021 14:30 Longmen China  0.1
24 Jul 2021 14:30 Dafanpo China  0.1
24 Jul 2021 14:30 Hsi-niu-chiao China  0.1
24 Jul 2021 14:30 Pingshan China  0.1
26 Jul 2021 11:15 San-hsing Taiwan  0.1
26 Jul 2021 11:15 T'ai-hsi Taiwan  0.1
24 Jul 2021 13:30 Dangjiang China  0.1
24 Jul 2021 13:30 Qianjiang China  0.1
24 Jul 2021 13:15 Baishawan China  0.1
24 Jul 2021 13:15 Fangcheng China  0.1
24 Jul 2021 13:15 Gongche China  0.1
24 Jul 2021 13:15 Ch'i-sha China  0.1
26 Jul 2021 08:30 Chung-ch'i Taiwan  0.1
26 Jul 2021 08:15 Sa-ti Taiwan  0.1
26 Jul 2021 08:15 Hai-kou Taiwan  0.1
24 Jul 2021 14:00 Dong Cay Vietnam  0.1
24 Jul 2021 14:00 Dang Noi Vietnam  0.1
24 Jul 2021 14:00 Dam Ha Vietnam  0.1
24 Jul 2021 14:00 Cai Kien Vietnam  0.1
24 Jul 2021 18:30 Luc Linh Vietnam  0.1
24 Jul 2021 18:30 Nam Dong Vietnam  0.1
25 Jul 2021 08:45 Anhai China  0.1
25 Jul 2021 08:45 Tung-shih China  0.1
26 Jul 2021 08:00 Hsin-chiang Taiwan  0.1
26 Jul 2021 08:00 Hsia-lun Taiwan  0.1
26 Jul 2021 08:00 Wu-nan Taiwan  0.1
24 Jul 2021 14:00 Cot Doai Vietnam  0.1
24 Jul 2021 13:45 Vinh Thuc Vietnam  0.1
26 Jul 2021 07:45 Yung-lung Taiwan  0.1
26 Jul 2021 07:45 Fu-hsing Taiwan  0.1
26 Jul 2021 07:45 Pu-tai Taiwan  0.1
26 Jul 2021 07:45 Chang-t'an Taiwan  0.1
24 Jul 2021 18:45 An Co Vietnam  0.1
24 Jul 2021 18:30 Dai Loc Vietnam  0.1
24 Jul 2021 19:00 Gia Luan Vietnam  0.1
24 Jul 2021 19:00 Hon Gay Vietnam  0.1
24 Jul 2021 19:00 Ha Tou Vietnam  0.1
24 Jul 2021 16:00 Ubon Bi Vietnam  0.1
24 Jul 2021 16:00 Quang Yen Vietnam  0.1
24 Jul 2021 16:00 Hoang Chau Vietnam  0.1
24 Jul 2021 16:00 Dong Vang Vietnam  0.1
25 Jul 2021 08:45 Fugong China  0.1
25 Jul 2021 08:45 Haicang China  0.1
25 Jul 2021 08:45 Guankou China  0.1
25 Jul 2021 08:45 Gangwei China  0.1
25 Jul 2021 08:45 Songyu China  0.1
25 Jul 2021 08:45 Hsing-lin China  0.1
25 Jul 2021 08:45 Xucuo China  0.1
25 Jul 2021 08:45 Gulangyu China  0.1
25 Jul 2021 08:45 Xiamen China  0.1
24 Jul 2021 20:15 Xuan Moc Vietnam  0.1
24 Jul 2021 20:15 Ba Lang Vietnam  0.1
24 Jul 2021 20:15 Hoang Xa Vietnam  0.1
23 Jul 2021 12:30 Ch'i-shui China  0.1
23 Jul 2021 12:30 Haikang China  0.1
24 Jul 2021 18:30 Cuu Doi Vietnam  0.1
23 Jul 2021 14:15 She-liao Taiwan  0.1
23 Jul 2021 14:15 Che-cheng Taiwan  0.1
23 Jul 2021 14:15 Maobitou Taiwan  0.1
23 Jul 2021 14:15 Ta-kuang Taiwan  0.1
24 Jul 2021 15:45 Hai Phong Vietnam  0.1
24 Jul 2021 15:45 Thuy U Vietnam  0.1
25 Jul 2021 17:30 Chi-pei Taiwan  0.1
24 Jul 2021 15:15 Lang Bang Vietnam  0.1
24 Jul 2021 15:15 Cam Pha Vietnam  0.1
24 Jul 2021 15:15 Mong Duong Vietnam  0.1
25 Jul 2021 09:00 Chen-hai China  0.1
25 Jul 2021 09:00 Daomei China  0.1
25 Jul 2021 09:00 Zhenhai China  0.1
23 Jul 2021 18:00 Chia-ho-ts'un Taiwan  0.1
23 Jul 2021 18:00 Fang-shan Taiwan  0.1
23 Jul 2021 18:00 Feng-chiang Taiwan  0.1
24 Jul 2021 14:00 Ban Sen Vietnam  0.1