Overall Orange alert Tropical Cyclone for CEMPAKA-21
in China
24 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 ECMWF
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 72 km/h
Maximum storm surge 0.8 m (26 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 72 km/h 0.8 m 549 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 24 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 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 61 - - - - - - -
GREEN 13 24 Jul 2021 00:00 72 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 24 Jul 2021 00:00 UTC
LevelCountryPopulation 
500-750 mmChina14,809 
250-500 mmChina, Vietnam, Laos, Thailand, Philippines634,603
+
China584,507 
Vietnam24,613 
Laos25,001 
Philippines244 
Thailand237 
100-250 mmChina, Taiwan, Vietnam, Laos, Philippines, Thailand18,123,068
+
China8,793,217 
Taiwan154,044 
Vietnam595,096 
Laos1,642,895 
Philippines2,989,816 
Thailand3,947,998 
50-100 mmChina, Taiwan, Vietnam, Laos, Philippines, Thailand, Cambodia24,910,532
+
China9,582,722 
Taiwan3,949,576 
Vietnam2,936,830 
Laos1,306,463 
Philippines2,367,798 
Thailand4,740,477 
Cambodia26,664 

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 12:00 156 1 million
- - - - Laos, Vietnam, China, Philippines
Blue 13 24 Jul 2021 00:00 549 18.8 million
- - China, Taiwan, Vietnam, Laos, Philippines, Thailand, Cambodia




Impact estimation for the next 72h
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StormSurge

0.8 m

The maximum Storm surge height is  0.8m in Sha-fan-chieh, China. This height is estimated for 26 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 24 Jul 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
26 Jul 2021 15:45 Sha-fan-chieh China  0.8
26 Jul 2021 15:45 Jinxiang China  0.8
26 Jul 2021 15:45 Pucheng China  0.8
26 Jul 2021 15:00 Shacheng China  0.6
26 Jul 2021 15:00 Xiaguan China  0.6
26 Jul 2021 15:00 Huang-ch'i China  0.6
26 Jul 2021 15:45 Yacheng China  0.6
26 Jul 2021 15:45 Sansha China  0.6
26 Jul 2021 15:45 Changchun China  0.6
26 Jul 2021 15:45 Wuqu China  0.6
26 Jul 2021 13:30 Xiahu China  0.5
26 Jul 2021 13:30 Da'ao China  0.5
26 Jul 2021 13:30 Luxia China  0.5
26 Jul 2021 14:00 Tung-ch'ung China  0.5
26 Jul 2021 14:00 Xinan China  0.5
26 Jul 2021 14:00 Anhai China  0.5
26 Jul 2021 14:15 Bili China  0.5
26 Jul 2021 14:15 Chien-chiang China  0.5
26 Jul 2021 14:15 Ting-hai China  0.5
26 Jul 2021 14:15 Ch'ang-t'an-wo Taiwan  0.5
26 Jul 2021 14:15 Tung-tai China  0.4
26 Jul 2021 14:15 Baisheng China  0.4
26 Jul 2021 14:15 Mabi China  0.4
26 Jul 2021 14:15 Guanban China  0.4
26 Jul 2021 14:15 Langqi China  0.4
26 Jul 2021 14:15 Changmen China  0.4
26 Jul 2021 14:15 Fengwo China  0.4
26 Jul 2021 14:15 Yunlong China  0.4
26 Jul 2021 14:45 Tantou China  0.4
26 Jul 2021 14:30 Chin-feng China  0.4
26 Jul 2021 14:30 Wuhang China  0.4
26 Jul 2021 15:45 Chiang-t'ien China  0.4
26 Jul 2021 15:45 Chang-chiang China  0.4
26 Jul 2021 15:30 Qingfeng China  0.4
26 Jul 2021 15:00 Guhuai China  0.4
26 Jul 2021 15:30 Guanjing China  0.4
26 Jul 2021 15:15 Houtian China  0.4
26 Jul 2021 15:15 Pingtan China  0.4
26 Jul 2021 17:15 Yuxi China  0.4
26 Jul 2021 17:15 Tangbian China  0.4
26 Jul 2021 17:15 Jiangjing China  0.4
26 Jul 2021 17:15 Longtian China  0.4
26 Jul 2021 17:15 Gangtou China  0.4
26 Jul 2021 17:15 San Shah China  0.4
26 Jul 2021 17:15 Gaoshan China  0.4
26 Jul 2021 17:15 Chiang-k'ou China  0.3
26 Jul 2021 17:15 Daitou China  0.3
26 Jul 2021 17:15 Shicheng China  0.3
26 Jul 2021 16:00 Beicuo China  0.3
26 Jul 2021 17:00 Cao Yu China  0.3
26 Jul 2021 17:30 Nanri China  0.3
26 Jul 2021 17:30 Fuye China  0.3
26 Jul 2021 17:00 Ta-ch'iu China  0.3
26 Jul 2021 16:15 Pinghai China  0.3
26 Jul 2021 16:15 P'u-hsi China  0.3
26 Jul 2021 16:15 P'u-hsi-ch'eng China  0.3
26 Jul 2021 16:15 Meizhou China  0.3
26 Jul 2021 16:15 Zhongmen China  0.3
26 Jul 2021 16:15 Hushi China  0.3
26 Jul 2021 16:30 Wangchuan China  0.3
26 Jul 2021 16:30 Fengting China  0.3
26 Jul 2021 16:30 Dongsha China  0.3
26 Jul 2021 16:30 Dawu China  0.3
26 Jul 2021 16:30 Lingchuan China  0.3
26 Jul 2021 16:30 Fengwei China  0.3
26 Jul 2021 18:00 Hsiao-tso China  0.2
26 Jul 2021 14:45 Ch'i-ting Taiwan  0.2
26 Jul 2021 14:45 Tung-hsiao Taiwan  0.2
26 Jul 2021 14:45 Hai huang Taiwan  0.2
26 Jul 2021 14:45 Yuan-li Taiwan  0.2
26 Jul 2021 16:15 Qian'an China  0.2
26 Jul 2021 16:15 Chongwu China  0.2
26 Jul 2021 16:00 Hsiang-chih China  0.2
26 Jul 2021 16:00 Zhangban China  0.2
26 Jul 2021 15:00 Ching-shui Taiwan  0.2
26 Jul 2021 16:15 Shihu China  0.2
26 Jul 2021 16:15 Dongyuan China  0.2
26 Jul 2021 16:00 Shih-shih China  0.2
26 Jul 2021 16:00 Yakou China  0.2
26 Jul 2021 16:00 Yongning China  0.2
26 Jul 2021 19:30 Beimu China  0.2
26 Jul 2021 19:30 Yong'an China  0.2
26 Jul 2021 19:30 Shankou China  0.2
26 Jul 2021 19:30 Yingluo China  0.2
26 Jul 2021 19:00 Dianqian China  0.2
26 Jul 2021 19:00 Jiangtou China  0.2
26 Jul 2021 19:00 Hecuo China  0.2
26 Jul 2021 19:00 Liuwudian China  0.2
26 Jul 2021 19:00 Aotou China  0.2
26 Jul 2021 19:00 Xindian China  0.2
26 Jul 2021 19:00 An-ting Taiwan  0.2
26 Jul 2021 19:00 Ma-chiang China  0.2
26 Jul 2021 19:00 Chin-men Taiwan  0.2
26 Jul 2021 19:00 Lianhe China  0.2
26 Jul 2021 19:00 Ch'ing-hsu Taiwan  0.2
26 Jul 2021 19:00 Shijing China  0.2
26 Jul 2021 19:30 Bailong China  0.2
26 Jul 2021 18:30 Chin-men Tao Taiwan  0.2
26 Jul 2021 18:30 Yang-chai Taiwan  0.2
26 Jul 2021 16:00 Weitou China  0.2
26 Jul 2021 16:00 Chin-ching China  0.2
26 Jul 2021 15:15 Lu-kang Taiwan  0.2
26 Jul 2021 15:45 Sha-shan Taiwan  0.2
26 Jul 2021 15:45 Wang-kung Taiwan  0.2
26 Jul 2021 21:30 Caotan China  0.2
26 Jul 2021 21:30 Longtousha China  0.2
26 Jul 2021 21:30 Yingzai China  0.2
26 Jul 2021 16:30 Anhai China  0.2
26 Jul 2021 16:30 Tung-shih China  0.2
26 Jul 2021 15:45 San-hsing Taiwan  0.2
26 Jul 2021 15:45 T'ai-hsi Taiwan  0.2
26 Jul 2021 15:45 Chung-ch'i Taiwan  0.2
24 Jul 2021 17:45 Hsi-ch'ang-hsu China  0.1
24 Jul 2021 17:45 Hsi-ch'ang China  0.1
24 Jul 2021 17:45 Shagang China  0.1
24 Jul 2021 17:45 Beihai China  0.1
24 Jul 2021 17:45 Dangjiang China  0.1
24 Jul 2021 17:45 Gaode China  0.1
24 Jul 2021 17:45 Guchengling China  0.1
24 Jul 2021 17:45 Qianjiang China  0.1
26 Jul 2021 15:45 Sa-ti Taiwan  0.1
26 Jul 2021 15:45 Hai-kou Taiwan  0.1
26 Jul 2021 19:15 Fugong China  0.1
26 Jul 2021 19:15 Haicang China  0.1
26 Jul 2021 19:15 Gangwei China  0.1
26 Jul 2021 19:15 Songyu China  0.1
26 Jul 2021 19:15 Hsing-lin China  0.1
26 Jul 2021 19:15 Xucuo China  0.1
26 Jul 2021 19:15 Gulangyu China  0.1
26 Jul 2021 19:15 Xiamen China  0.1
26 Jul 2021 19:15 Chen-hai China  0.1
26 Jul 2021 19:15 Daomei China  0.1
26 Jul 2021 19:15 Zhenhai China  0.1
26 Jul 2021 19:00 Guankou China  0.1
24 Jul 2021 17:45 Guanjing China  0.1
26 Jul 2021 16:15 Chi-pei Taiwan  0.1
26 Jul 2021 16:15 Ch'ang-an Taiwan  0.1
26 Jul 2021 15:45 Hsia-lun Taiwan  0.1
24 Jul 2021 17:30 Hsi-niu-chiao China  0.1
24 Jul 2021 17:30 Pingshan China  0.1
26 Jul 2021 16:15 Chu-kao-wan Taiwan  0.1
26 Jul 2021 16:15 Ch'eng-ch'ien Taiwan  0.1
24 Jul 2021 17:30 Longmen China  0.1
24 Jul 2021 17:30 Dafanpo China  0.1
26 Jul 2021 16:15 Wai-an Taiwan  0.1
26 Jul 2021 16:15 Feng-kuei-li Taiwan  0.1
26 Jul 2021 16:15 P'eng-hu-erh-ts'un Taiwan  0.1
26 Jul 2021 16:15 Ma-kung Taiwan  0.1
26 Jul 2021 16:15 Lung-men Taiwan  0.1
26 Jul 2021 16:00 Hsin-chiang Taiwan  0.1
26 Jul 2021 16:00 Wu-nan Taiwan  0.1
24 Jul 2021 14:15 Mong Cai Vietnam  0.1
24 Jul 2021 14:15 Jiangpingxu China  0.1
24 Jul 2021 14:15 Jiangping China  0.1
24 Jul 2021 14:15 Wanwei China  0.1
24 Jul 2021 15:45 Gongche China  0.1
24 Jul 2021 15:45 Ch'i-sha China  0.1
24 Jul 2021 13:45 Gia Luan Vietnam  0.1
24 Jul 2021 13:45 Dong Vang Vietnam  0.1
24 Jul 2021 13:45 Hon Gay Vietnam  0.1
24 Jul 2021 13:45 Lang Bang Vietnam  0.1
24 Jul 2021 13:45 Ha Tou Vietnam  0.1
25 Jul 2021 01:15 Tap Phuc Vietnam  0.1
25 Jul 2021 01:15 Cau Lo Vietnam  0.1
25 Jul 2021 01:15 Hoa Cam Vietnam  0.1
25 Jul 2021 01:15 Hoi Thong Vietnam  0.1
24 Jul 2021 16:45 Hai Phong Vietnam  0.1
24 Jul 2021 16:45 Thuy U Vietnam  0.1
24 Jul 2021 16:45 Dai Loc Vietnam  0.1
24 Jul 2021 16:45 Quang Yen Vietnam  0.1
24 Jul 2021 16:45 Hoang Chau Vietnam  0.1
26 Jul 2021 16:30 Hua-hsu Taiwan  0.1
26 Jul 2021 16:30 Chu-mu-shui Taiwan  0.1
24 Jul 2021 19:30 Luc Linh Vietnam  0.1
24 Jul 2021 19:30 Nam Dong Vietnam  0.1
24 Jul 2021 15:15 Cam Pha Vietnam  0.1
24 Jul 2021 15:15 Mong Duong Vietnam  0.1
24 Jul 2021 19:00 Xuan Moc Vietnam  0.1
24 Jul 2021 19:00 Hoang Xa Vietnam  0.1
24 Jul 2021 19:00 Yen Cat Vietnam  0.1
24 Jul 2021 19:00 Sam Son Vietnam  0.1
24 Jul 2021 15:00 Bailong China  0.1
24 Jul 2021 15:00 Jiangshan China  0.1
24 Jul 2021 15:00 Baishawan China  0.1
24 Jul 2021 14:15 Paipu China  0.1
24 Jul 2021 14:15 Baimajing China  0.1
24 Jul 2021 14:15 Hsin-ying China  0.1
24 Jul 2021 14:15 Taan China  0.1
24 Jul 2021 14:15 Hsin-chou China  0.1
24 Jul 2021 19:45 Ba Lang Vietnam  0.1
24 Jul 2021 15:30 An Co Vietnam  0.1
24 Jul 2021 16:00 Ubon Bi Vietnam  0.1
24 Jul 2021 17:00 Fangcheng China  0.1
24 Jul 2021 16:00 Diem Phe Vietnam  0.1
24 Jul 2021 16:00 Xa Loan Vietnam  0.1
24 Jul 2021 16:00 Dot Dong Vietnam  0.1
24 Jul 2021 16:00 Nam Son Vietnam  0.1
24 Jul 2021 15:45 Cuu Doi Vietnam  0.1
24 Jul 2021 18:45 Vinh Ngai Vietnam  0.1
24 Jul 2021 18:45 Tien Yen Vietnam  0.1
24 Jul 2021 18:45 Ca Lu Vietnam  0.1
24 Jul 2021 18:45 Xi Dua Vietnam  0.1
24 Jul 2021 17:00 Dong Cay Vietnam  0.1
24 Jul 2021 17:00 Dang Noi Vietnam  0.1
24 Jul 2021 17:00 Dam Ha Vietnam  0.1
25 Jul 2021 01:00 Thuan Thien Vietnam  0.1
25 Jul 2021 01:00 Thien Linh Vietnam  0.1
25 Jul 2021 01:00 Trung Thinh Vietnam  0.1
25 Jul 2021 01:00 Trung Nghia Vietnam  0.1
24 Jul 2021 16:45 Cai Kien Vietnam  0.1
24 Jul 2021 23:45 Con Soi Vietnam  0.1
24 Jul 2021 23:45 Hai Khau Vietnam  0.1
24 Jul 2021 16:45 Cot Doai Vietnam  0.1
24 Jul 2021 14:15 Eman China  0.1
26 Jul 2021 16:30 Chiang-chun-ao Taiwan  0.1
24 Jul 2021 16:45 Vinh Thuc Vietnam  0.1
25 Jul 2021 00:30 Cau Thuong Vietnam  0.1
25 Jul 2021 00:30 Hau Con Vietnam  0.1