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 ECMWF
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 61 km/h
Maximum storm surge 0.9 m (25 Jul 16:30 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
ECMWF Current 61 km/h 0.9 m 127 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 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 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 00:00 UTC
LevelCountryPopulation 
250-500 mmChina, Taiwan, Vietnam, Laos, Thailand, Philippines1,137,727
+
China445,029 
Taiwan01 
Vietnam399,273 
Laos118,559 
Philippines122,839 
Thailand52,023 
100-250 mmChina, Taiwan, Vietnam, Laos, Thailand, Philippines, Cambodia25,159,805
+
China5,012,614 
Taiwan548,880 
Vietnam10,634,952 
Laos2,388,925 
Philippines3,715,557 
Thailand2,857,487 
Cambodia1,387 
50-100 mmChina, Taiwan, Vietnam, Laos, Philippines, Thailand, Cambodia51,534,284
+
China17,818,028 
Taiwan6,082,934 
Vietnam20,345,946 
Laos1,058,098 
Philippines2,838,362 
Thailand3,300,981 
Cambodia89,932 

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 00:00 491 26.3 million
- - - China, Taiwan, Vietnam, Laos, Philippines, Thailand, Cambodia




Impact estimation for the next 72h
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StormSurge

0.9 m

The maximum Storm surge height is  0.9m in Sha-fan-chieh, China. This height is estimated for 25 Jul 2021 16:30 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 16:30 Sha-fan-chieh China  0.9
25 Jul 2021 16:30 Jinxiang China  0.9
25 Jul 2021 16:45 Pucheng China  0.9
25 Jul 2021 17:15 Shacheng China  0.7
25 Jul 2021 17:15 Xiaguan China  0.7
25 Jul 2021 17:15 Huang-ch'i China  0.7
25 Jul 2021 16:15 Yacheng China  0.6
25 Jul 2021 16:15 Sansha China  0.6
25 Jul 2021 16:45 Changchun China  0.6
25 Jul 2021 16:45 Wuqu China  0.6
25 Jul 2021 17:00 Luxia China  0.6
25 Jul 2021 15:45 Xiahu China  0.6
25 Jul 2021 15:45 Da'ao China  0.6
25 Jul 2021 16:30 Tung-ch'ung China  0.5
25 Jul 2021 16:30 Xinan China  0.5
25 Jul 2021 16:00 Anhai China  0.5
25 Jul 2021 15:30 Bili China  0.5
25 Jul 2021 15:30 Chien-chiang China  0.5
25 Jul 2021 15:30 Ting-hai China  0.5
25 Jul 2021 16:00 Ch'ang-t'an-wo Taiwan  0.5
25 Jul 2021 16:30 Tung-tai China  0.5
25 Jul 2021 16:30 Baisheng China  0.5
25 Jul 2021 16:30 Mabi China  0.5
25 Jul 2021 16:30 Guanban China  0.5
25 Jul 2021 16:45 Langqi China  0.5
25 Jul 2021 16:45 Changmen China  0.5
25 Jul 2021 16:45 Fengwo China  0.5
25 Jul 2021 16:45 Yunlong China  0.5
25 Jul 2021 16:30 Tantou China  0.5
25 Jul 2021 16:15 Chin-feng China  0.5
25 Jul 2021 16:15 Wuhang China  0.5
25 Jul 2021 16:30 Chiang-t'ien China  0.4
25 Jul 2021 16:30 Chang-chiang China  0.4
25 Jul 2021 16:30 Guhuai China  0.4
25 Jul 2021 16:30 Guanjing China  0.4
25 Jul 2021 16:30 Qingfeng China  0.4
25 Jul 2021 16:45 Pingtan China  0.4
25 Jul 2021 16:45 Houtian China  0.4
25 Jul 2021 16:15 Beicuo China  0.4
25 Jul 2021 18:15 Cao Yu China  0.3
25 Jul 2021 17:45 San Shah China  0.3
25 Jul 2021 17:45 Gaoshan China  0.3
25 Jul 2021 17:45 Ta-ch'iu China  0.3
25 Jul 2021 20:00 Yuxi China  0.3
25 Jul 2021 20:00 Tangbian China  0.3
25 Jul 2021 20:00 Jiangjing China  0.3
25 Jul 2021 20:00 Longtian China  0.3
25 Jul 2021 20:00 Gangtou China  0.3
25 Jul 2021 20:00 Shicheng China  0.3
25 Jul 2021 20:00 Chiang-k'ou China  0.3
25 Jul 2021 20:00 Daitou China  0.3
25 Jul 2021 20:00 Nanri China  0.3
25 Jul 2021 20:00 Fuye China  0.3
25 Jul 2021 21:15 Wangchuan China  0.3
25 Jul 2021 21:15 Fengting China  0.3
25 Jul 2021 21:15 Dawu China  0.3
25 Jul 2021 21:15 Fengwei China  0.3
25 Jul 2021 21:15 Hsiao-tso China  0.3
25 Jul 2021 21:15 Zhongmen China  0.3
25 Jul 2021 20:45 P'u-hsi China  0.3
25 Jul 2021 20:45 P'u-hsi-ch'eng China  0.3
25 Jul 2021 20:45 Meizhou China  0.3
25 Jul 2021 20:30 Pinghai China  0.3
25 Jul 2021 21:00 Dongsha China  0.3
25 Jul 2021 21:00 Lingchuan China  0.3
25 Jul 2021 21:00 Hushi China  0.3
25 Jul 2021 16:45 Ch'i-ting Taiwan  0.2
25 Jul 2021 16:45 Tung-hsiao Taiwan  0.2
25 Jul 2021 20:30 Qian'an China  0.2
25 Jul 2021 20:30 Chongwu China  0.2
25 Jul 2021 16:45 Hai huang Taiwan  0.2
25 Jul 2021 16:45 Yuan-li Taiwan  0.2
25 Jul 2021 19:30 Hsiang-chih China  0.2
25 Jul 2021 19:30 Zhangban China  0.2
25 Jul 2021 19:15 Shih-shih China  0.2
25 Jul 2021 19:15 Yakou China  0.2
25 Jul 2021 19:15 Yongning China  0.2
25 Jul 2021 19:15 Shihu China  0.2
25 Jul 2021 19:15 Dongyuan China  0.2
25 Jul 2021 20:45 Ching-shui Taiwan  0.2
25 Jul 2021 19:45 Weitou China  0.2
25 Jul 2021 19:45 Chin-ching China  0.2
25 Jul 2021 20:15 Lu-kang Taiwan  0.2
25 Jul 2021 20:00 Chin-men Taiwan  0.2
25 Jul 2021 20:00 Lianhe China  0.2
25 Jul 2021 20:00 Ch'ing-hsu Taiwan  0.2
25 Jul 2021 20:00 Shijing China  0.2
25 Jul 2021 20:00 Chin-men Tao Taiwan  0.2
25 Jul 2021 20:00 Yang-chai Taiwan  0.2
25 Jul 2021 19:45 Sha-shan Taiwan  0.2
25 Jul 2021 19:45 Wang-kung Taiwan  0.2
25 Jul 2021 20:15 Tung-shih China  0.2
25 Jul 2021 20:00 Anhai China  0.2
25 Jul 2021 19:45 San-hsing Taiwan  0.2
25 Jul 2021 19:45 T'ai-hsi Taiwan  0.2
25 Jul 2021 19:45 Chung-ch'i Taiwan  0.2
23 Jul 2021 05:30 Paipu China  0.2
23 Jul 2021 05:30 Baimajing China  0.2
23 Jul 2021 05:30 Hsin-ying China  0.2
23 Jul 2021 05:30 Eman China  0.2
23 Jul 2021 05:30 Taan China  0.2
23 Jul 2021 05:30 Hsin-chou China  0.2
25 Jul 2021 20:15 Aotou China  0.2
25 Jul 2021 20:15 An-ting Taiwan  0.2
23 Jul 2021 15:30 Bailong China  0.2
23 Jul 2021 15:30 Beimu China  0.2
23 Jul 2021 15:30 Yong'an China  0.2
23 Jul 2021 15:30 Shankou China  0.2
23 Jul 2021 15:30 Yingluo China  0.2
25 Jul 2021 19:45 Chi-pei Taiwan  0.2
25 Jul 2021 19:45 Sa-ti Taiwan  0.2
25 Jul 2021 19:45 Hai-kou Taiwan  0.2
25 Jul 2021 19:45 Ch'ang-an Taiwan  0.2
25 Jul 2021 20:15 Songyu China  0.2
25 Jul 2021 20:15 Hsing-lin China  0.2
25 Jul 2021 20:15 Xucuo China  0.2
25 Jul 2021 20:15 Gulangyu China  0.2
25 Jul 2021 20:15 Xiamen China  0.2
25 Jul 2021 20:15 Chen-hai China  0.2
25 Jul 2021 20:15 Daomei China  0.2
25 Jul 2021 20:15 Dianqian China  0.2
25 Jul 2021 20:15 Jiangtou China  0.2
25 Jul 2021 20:15 Zhenhai China  0.2
25 Jul 2021 20:15 Hecuo China  0.2
25 Jul 2021 20:15 Liuwudian China  0.2
25 Jul 2021 14:00 Xindian China  0.2
25 Jul 2021 14:00 Ma-chiang China  0.2
25 Jul 2021 21:45 Fugong China  0.2
25 Jul 2021 21:45 Haicang China  0.2
25 Jul 2021 21:45 Gangwei China  0.2
25 Jul 2021 19:30 Chu-kao-wan Taiwan  0.2
25 Jul 2021 19:30 Ch'eng-ch'ien Taiwan  0.2
25 Jul 2021 20:00 Wai-an Taiwan  0.1
25 Jul 2021 20:00 Feng-kuei-li Taiwan  0.1
25 Jul 2021 20:00 P'eng-hu-erh-ts'un Taiwan  0.1
25 Jul 2021 20:00 Ma-kung Taiwan  0.1
25 Jul 2021 20:00 Lung-men Taiwan  0.1
25 Jul 2021 21:45 Guankou China  0.1
25 Jul 2021 19:30 Hsia-lun Taiwan  0.1
25 Jul 2021 19:45 Hsin-chiang Taiwan  0.1
25 Jul 2021 19:45 Wu-nan Taiwan  0.1
25 Jul 2021 19:30 Hua-hsu Taiwan  0.1
25 Jul 2021 19:15 Chu-mu-shui Taiwan  0.1
25 Jul 2021 20:00 Yung-lung Taiwan  0.1
25 Jul 2021 20:00 Fu-hsing Taiwan  0.1
25 Jul 2021 20:00 Pu-tai Taiwan  0.1
25 Jul 2021 20:00 Chang-t'an Taiwan  0.1
25 Jul 2021 20:15 Chiang-chun-ao Taiwan  0.1
24 Jul 2021 16:45 Cau Lo Vietnam  0.1
24 Jul 2021 16:45 Hoa Cam Vietnam  0.1
24 Jul 2021 16:45 Hoi Thong Vietnam  0.1
24 Jul 2021 16:45 Thien Linh Vietnam  0.1
25 Jul 2021 20:30 Chung-p'ing Taiwan  0.1
24 Jul 2021 17:30 Tap Phuc Vietnam  0.1
25 Jul 2021 19:45 Fotan China  0.1
23 Jul 2021 12:30 Longmen China  0.1
23 Jul 2021 12:30 Dafanpo China  0.1
23 Jul 2021 12:30 Hsi-niu-chiao China  0.1
23 Jul 2021 12:30 Pingshan China  0.1
25 Jul 2021 19:45 Chihu China  0.1
23 Jul 2021 17:15 Luc Linh Vietnam  0.1
23 Jul 2021 17:15 Nam Dong Vietnam  0.1
23 Jul 2021 08:45 Gia Luan Vietnam  0.1
23 Jul 2021 08:45 Dong Vang Vietnam  0.1
23 Jul 2021 08:45 Hon Gay Vietnam  0.1
23 Jul 2021 08:45 Lang Bang Vietnam  0.1
23 Jul 2021 08:45 Ha Tou Vietnam  0.1
24 Jul 2021 17:00 Ca Lu Vietnam  0.1
24 Jul 2021 17:00 Ba Lang Vietnam  0.1
24 Jul 2021 17:00 Xi Dua Vietnam  0.1
23 Jul 2021 10:15 Cam Pha Vietnam  0.1
23 Jul 2021 10:15 Mong Duong Vietnam  0.1
23 Jul 2021 12:15 Gongche China  0.1
23 Jul 2021 12:15 Ch'i-sha China  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 17:15 Vinh Lai Vietnam  0.1
24 Jul 2021 17:15 Vinh Ngai Vietnam  0.1
23 Jul 2021 01:45 Ta-lin-pu Taiwan  0.1
23 Jul 2021 01:45 Liu-chiu Hsu Taiwan  0.1
23 Jul 2021 01:45 Hou-ta-ts'o Taiwan  0.1
23 Jul 2021 01:45 I-jen Taiwan  0.1
23 Jul 2021 01:45 Tung-chiang Taiwan  0.1
23 Jul 2021 01:45 Wu-lung Taiwan  0.1
23 Jul 2021 01:45 T'ien-ch'ien-ts'o Taiwan  0.1
23 Jul 2021 01:45 Shui-ti-liao Taiwan  0.1
23 Jul 2021 01:45 Chia-ho-ts'un Taiwan  0.1
24 Jul 2021 11:30 Caotan China  0.1
24 Jul 2021 19:45 Cau Thuong Vietnam  0.1
24 Jul 2021 19:45 Hau Con Vietnam  0.1
24 Jul 2021 19:45 Con Soi Vietnam  0.1
23 Jul 2021 12:00 Beihai China  0.1
23 Jul 2021 12:00 Gaode China  0.1
23 Jul 2021 12:00 Guchengling China  0.1
24 Jul 2021 17:00 Xuan Moc Vietnam  0.1
24 Jul 2021 17:00 Hoang Xa Vietnam  0.1
24 Jul 2021 16:45 Yen Cat Vietnam  0.1
24 Jul 2021 16:45 Diem Phe Vietnam  0.1
24 Jul 2021 16:45 Sam Son Vietnam  0.1
24 Jul 2021 16:45 Dot Dong Vietnam  0.1
24 Jul 2021 16:45 Nam Son Vietnam  0.1
23 Jul 2021 03:15 Fang-shan Taiwan  0.1
23 Jul 2021 03:15 Feng-chiang Taiwan  0.1
23 Jul 2021 03:15 She-liao Taiwan  0.1
23 Jul 2021 03:15 Che-cheng Taiwan  0.1
25 Jul 2021 20:00 Chiang-chun Taiwan  0.1
25 Jul 2021 20:30 Shentu China  0.1
24 Jul 2021 11:45 Hsia-yung China  0.1
24 Jul 2021 11:45 Renshan China  0.1
24 Jul 2021 11:45 Jen-shan China  0.1
24 Jul 2021 11:45 Fanhe China  0.1
24 Jul 2021 11:45 Pinghai China  0.1
23 Jul 2021 12:00 Guanjing China  0.1
23 Jul 2021 12:00 Hsi-ch'ang-hsu China  0.1
23 Jul 2021 12:00 Hsi-ch'ang China  0.1