Overall Green alert Tropical Cyclone for DIANMU-21
in Viet Nam, Laos
23 Sep 2021 18 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone DIANMU-21 can have a low 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 54 km/h
Maximum storm surge 0.3 m (23 Sep 20:30 UTC)
Vulnerability High (Vietnam)

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 54 km/h 0.3 m 56 mm 0.5
GFS Overall 119 km/h 0.4 m 432 mm 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

119 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 Sep 2021 18:00 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 22 Sep 2021 12:00 50 - - - - - - -
GREEN 2 22 Sep 2021 18:00 54 - - - - - - -
GREEN 3 23 Sep 2021 00:00 119 - - - - - - -
GREEN 4 23 Sep 2021 06:00 72 - - - - - - -
GREEN 5 23 Sep 2021 12:00 68 - - - - - - -
GREEN 6 23 Sep 2021 18:00 54 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 23 Sep 2021 18:00 UTC
LevelCountryPopulation 
250-500 mmVietnam, Laos621,367
+
Vietnam619,667 
Laos1,699 
100-250 mmLaos, Vietnam, Thailand, Cambodia, Myanmar6,326,680
+
Vietnam4,892,898 
Myanmar470,818 
Laos142,940 
Thailand820,019 
Cambodia03 
50-100 mmChina, Vietnam, Myanmar, Laos, Thailand, Cambodia, Malaysia54,840,857
+
China3,397,878 
Vietnam23,075,497 
Myanmar2,960,872 
Laos1,961,391 
Thailand20,110,548 
Cambodia3,213,939 
Malaysia120,729 

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 22 Sep 2021 12:00 117 - - - - - - -
Blue 2 22 Sep 2021 18:00 179 70 thousand
- - - - Myanmar
Blue 3 23 Sep 2021 00:00 301 140 thousand
- - - - Myanmar
Blue 4 23 Sep 2021 06:00 92 -
- - - - - Vietnam
Blue 5 23 Sep 2021 12:00 81 -
- - - - - Thailand, Vietnam, Laos, Cambodia
Blue 6 23 Sep 2021 18:00 305 6.9 million
- - - China, Vietnam, Myanmar, Laos, Thailand, Cambodia, Malaysia




Impact estimation for the next 72h
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StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Vinh Lai, Vietnam. This height is estimated for 23 Sep 2021 20:30 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 Sep 2021 18:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
23 Sep 2021 20:30 Vinh Lai Vietnam  0.3
23 Sep 2021 20:30 Tap Phuc Vietnam  0.3
23 Sep 2021 20:30 Cau Lo Vietnam  0.3
23 Sep 2021 20:30 Vinh Ngai Vietnam  0.3
23 Sep 2021 20:30 Tien Yen Vietnam  0.3
23 Sep 2021 23:00 Hoa Cam Vietnam  0.3
23 Sep 2021 23:00 Hoi Thong Vietnam  0.3
23 Sep 2021 23:00 Thuan Thien Vietnam  0.3
23 Sep 2021 23:00 Thien Linh Vietnam  0.3
23 Sep 2021 23:00 Trung Thinh Vietnam  0.3
23 Sep 2021 23:00 Trung Nghia Vietnam  0.3
23 Sep 2021 23:15 Xianmai China  0.3
23 Sep 2021 23:15 Longshe China  0.3
23 Sep 2021 23:15 Dongli China  0.3
23 Sep 2021 23:15 Tung-li China  0.3
23 Sep 2021 22:45 Taiping China  0.3
23 Sep 2021 22:15 Yen Cat Vietnam  0.3
23 Sep 2021 22:15 Diem Phe Vietnam  0.3
23 Sep 2021 22:15 Sam Son Vietnam  0.3
23 Sep 2021 22:15 Xa Loan Vietnam  0.3
23 Sep 2021 22:15 Dot Dong Vietnam  0.3
23 Sep 2021 22:15 Nam Son Vietnam  0.3
23 Sep 2021 22:45 Dongshan China  0.3
23 Sep 2021 23:15 Ca Lu Vietnam  0.3
23 Sep 2021 23:15 Ba Lang Vietnam  0.3
23 Sep 2021 23:15 Hoang Xa Vietnam  0.3
23 Sep 2021 23:15 Xi Dua Vietnam  0.3
23 Sep 2021 23:00 Xuan Moc Vietnam  0.3
23 Sep 2021 22:30 Van Lam Trai Vietnam  0.3
23 Sep 2021 22:30 Con Van Vietnam  0.3
23 Sep 2021 22:30 Long Chau Vietnam  0.3
23 Sep 2021 21:45 Quan Phuong Trung Trai Vietnam  0.3
23 Sep 2021 21:45 Lien Phu Vietnam  0.3
23 Sep 2021 22:15 Quan Phuong Ha Vietnam  0.3
23 Sep 2021 22:00 Trung Tiet Vietnam  0.3
23 Sep 2021 22:00 Ha Tinh Vietnam  0.3
23 Sep 2021 22:00 Con Soi Vietnam  0.3
23 Sep 2021 22:00 Van Trang Vietnam  0.3
23 Sep 2021 22:00 Hai Khau Vietnam  0.3
23 Sep 2021 22:00 Vinh Ang Vietnam  0.3
24 Sep 2021 00:00 Nghoung Nhan Vietnam  0.3
24 Sep 2021 00:00 Luc Linh Vietnam  0.3
24 Sep 2021 00:00 Nam Dong Vietnam  0.3
23 Sep 2021 22:15 Dongjian China  0.2
23 Sep 2021 22:15 Houhu China  0.2
23 Sep 2021 22:00 Cau Thuong Vietnam  0.2
23 Sep 2021 22:00 Hau Con Vietnam  0.2
23 Sep 2021 22:45 Kiem Long Vietnam  0.2
23 Sep 2021 22:45 Ba Don Vietnam  0.2
23 Sep 2021 22:45 Tho Ngoa Vietnam  0.2
23 Sep 2021 22:45 Vinh Son Vietnam  0.2
23 Sep 2021 23:15 Ky Anh Vietnam  0.2
23 Sep 2021 23:15 Lang Loi Vietnam  0.2
23 Sep 2021 22:30 Bengtang China  0.2
23 Sep 2021 22:30 Houhai China  0.2
24 Sep 2021 00:00 Cua Thon Vietnam  0.2
23 Sep 2021 23:00 Guanchang China  0.2
23 Sep 2021 22:30 Jinhe China  0.2
23 Sep 2021 22:30 Wai-lo China  0.2
23 Sep 2021 19:00 Ly Nhon Thon Vietnam  0.2
23 Sep 2021 19:00 Dong Hoi Vietnam  0.2
23 Sep 2021 23:15 An Co Vietnam  0.2
23 Sep 2021 21:30 Cat Son Phuong Vietnam  0.2
23 Sep 2021 21:30 Mui Lay Vietnam  0.2
23 Sep 2021 21:30 Giem Ha Trung Vietnam  0.2
23 Sep 2021 21:30 Dong Ha Vietnam  0.2
23 Sep 2021 23:00 Nayan China  0.2
24 Sep 2021 00:00 Xom Lap Vietnam  0.2
23 Sep 2021 21:30 Baisha China  0.2
23 Sep 2021 21:30 Shaoyao China  0.2
23 Sep 2021 21:30 Xingyou China  0.2
23 Sep 2021 22:45 Huangwu China  0.2
23 Sep 2021 22:45 Doulongcun China  0.2
23 Sep 2021 23:45 The Chi Tay Vietnam  0.2
23 Sep 2021 23:45 An Thuan Vietnam  0.2
23 Sep 2021 23:45 Thai Duong Thuong Vietnam  0.2
23 Sep 2021 23:45 Thon Thai Duong Ha Vietnam  0.2
23 Sep 2021 23:30 Thon My Thuy Vietnam  0.2
23 Sep 2021 23:45 Gia Luan Vietnam  0.2
23 Sep 2021 23:45 Hon Gay Vietnam  0.2
23 Sep 2021 23:45 Ha Tou Vietnam  0.2
23 Sep 2021 23:45 Cam Pha Vietnam  0.2
24 Sep 2021 00:00 Dai Loc Vietnam  0.2
24 Sep 2021 00:00 Cuu Doi Vietnam  0.2
24 Sep 2021 00:00 Hoang Chau Vietnam  0.2
23 Sep 2021 23:30 Mong Duong Vietnam  0.2
23 Sep 2021 23:30 Dong Cay Vietnam  0.2
24 Sep 2021 00:00 Lang Bang Vietnam  0.2
24 Sep 2021 00:00 Dang Noi Vietnam  0.2
24 Sep 2021 00:00 Dam Ha Vietnam  0.2
24 Sep 2021 00:00 Cai Kien Vietnam  0.2
24 Sep 2021 00:00 Thon My Khanh Vietnam  0.2
24 Sep 2021 00:00 Ban Sen Vietnam  0.2
23 Sep 2021 21:15 Quang Yen Vietnam  0.2
24 Sep 2021 00:00 Cot Doai Vietnam  0.2
24 Sep 2021 00:00 Vinh Thuc Vietnam  0.2
23 Sep 2021 19:45 Huangpo China  0.2
23 Sep 2021 19:45 Chiu-wu-ch'uan China  0.2
23 Sep 2021 21:45 Ma-hsieh China  0.2
23 Sep 2021 21:45 Badongxu China  0.2
23 Sep 2021 21:45 Potou China  0.2
24 Sep 2021 00:00 Gancheng China  0.2
24 Sep 2021 00:00 Banqiao China  0.2
24 Sep 2021 00:00 Longyou China  0.2
24 Sep 2021 00:00 Lingtou China  0.2
23 Sep 2021 20:30 Qianshan China  0.2
23 Sep 2021 23:30 Phu Bai Vietnam  0.2
23 Sep 2021 23:30 Ha Tru Vietnam  0.2
24 Sep 2021 00:00 Mong Cai Vietnam  0.2
23 Sep 2021 23:45 Basuo China  0.2
23 Sep 2021 23:45 Duntou China  0.2
23 Sep 2021 18:00 Hoi An Vietnam  0.2
23 Sep 2021 18:00 An Thach Vietnam  0.2
24 Sep 2021 00:00 Beili China  0.2
24 Sep 2021 00:00 Changhua China  0.2
23 Sep 2021 18:00 An Cu Vietnam  0.2
23 Sep 2021 18:00 Ap Quan Nam Vietnam  0.2
23 Sep 2021 18:00 Da Nang Vietnam  0.2
23 Sep 2021 18:00 Xom Da Me Vietnam  0.2
23 Sep 2021 18:00 Mui Da Nang Vietnam  0.2
23 Sep 2021 23:45 Yinggehai China  0.2
24 Sep 2021 00:00 Jiangpingxu China  0.2
24 Sep 2021 00:00 Jiangping China  0.2
24 Sep 2021 00:00 Wanwei China  0.2
24 Sep 2021 00:00 Bailong China  0.2
24 Sep 2021 00:00 Foluo China  0.2
23 Sep 2021 23:15 Huangliu China  0.2
23 Sep 2021 20:15 Nanping China  0.2
23 Sep 2021 20:15 Cuihengcun China  0.2
23 Sep 2021 20:15 Xiazha China  0.2
23 Sep 2021 20:15 Maogang China  0.2
23 Sep 2021 20:15 Macau Macau (China)  0.2
23 Sep 2021 20:15 Heung chau China  0.2
23 Sep 2021 20:15 Ch'i-ao China  0.2
23 Sep 2021 19:30 Meilu China  0.2
23 Sep 2021 19:30 Hai-lu China  0.2
23 Sep 2021 18:15 Phung Chinh Vietnam  0.2
23 Sep 2021 18:15 Thon Phu An Vietnam  0.2
23 Sep 2021 18:15 Mui Chon Dong Vietnam  0.2
23 Sep 2021 23:45 Haiwei China  0.2
24 Sep 2021 00:00 Jiangshan China  0.1
24 Sep 2021 00:00 Chikan China  0.1
24 Sep 2021 00:00 Zhanjiang China  0.1
24 Sep 2021 00:00 Baishawan China  0.1
23 Sep 2021 20:45 Tiantou China  0.1
23 Sep 2021 20:45 Chixi China  0.1
23 Sep 2021 20:45 Meige China  0.1
23 Sep 2021 20:45 Mashan China  0.1
23 Sep 2021 20:45 Pingsha China  0.1
23 Sep 2021 23:00 Chongpo China  0.1
23 Sep 2021 23:00 Chiu-so China  0.1
23 Sep 2021 23:00 Jiusuo China  0.1
23 Sep 2021 23:45 Phu Loc Vietnam  0.1
23 Sep 2021 20:30 Mei-ko China  0.1
23 Sep 2021 20:30 Doumen China  0.1
24 Sep 2021 00:00 Gongche China  0.1
24 Sep 2021 00:00 Ch'i-sha China  0.1
23 Sep 2021 19:45 Shuidong China  0.1
23 Sep 2021 19:45 Dianbai China  0.1
23 Sep 2021 19:45 Danchang China  0.1
24 Sep 2021 00:00 Fangcheng China  0.1
24 Sep 2021 00:00 Longmen China  0.1
23 Sep 2021 20:15 Magang China  0.1
23 Sep 2021 18:45 Dayang China  0.1
23 Sep 2021 18:45 Dalangwan China  0.1
23 Sep 2021 18:45 Guanghai China  0.1
23 Sep 2021 18:45 Tonggu China  0.1
23 Sep 2021 23:30 Nanluo China  0.1
23 Sep 2021 23:30 Haitou China  0.1
23 Sep 2021 18:45 Dagou China  0.1
23 Sep 2021 18:45 Hsin-chou China  0.1
23 Sep 2021 22:45 Yacheng China  0.1
23 Sep 2021 19:00 Hsi-t'ou China  0.1
23 Sep 2021 19:00 Lengzilin China  0.1
23 Sep 2021 19:00 Pinggang China  0.1
23 Sep 2021 19:00 Baipu China  0.1
23 Sep 2021 20:30 Qishan China  0.1
23 Sep 2021 21:45 Ching-an China  0.1
23 Sep 2021 21:45 Xiaolin China  0.1
23 Sep 2021 21:45 Baijiao China  0.1
23 Sep 2021 21:00 Taipa Macau (China)  0.1
23 Sep 2021 21:00 Coloane Macau (China)  0.1
23 Sep 2021 18:30 Luewei China  0.1
23 Sep 2021 18:30 Shalan China  0.1
23 Sep 2021 18:30 Shadi China  0.1
23 Sep 2021 20:30 Min-chung China  0.1
23 Sep 2021 19:00 Jiangcheng China  0.1
23 Sep 2021 23:45 Hsi-niu-chiao China  0.1
23 Sep 2021 23:45 Pingshan China  0.1
23 Sep 2021 18:00 Dagang China  0.1
23 Sep 2021 18:00 Huangge China  0.1
23 Sep 2021 18:00 Wan-ch'ing-sha China  0.1
23 Sep 2021 18:00 Cheng'anwei China  0.1
23 Sep 2021 18:00 Fumunchai China  0.1
23 Sep 2021 18:00 Fumuntschai China  0.1
23 Sep 2021 20:30 San-tsao China  0.1
23 Sep 2021 18:15 Ch'i-ching China  0.1
23 Sep 2021 18:00 Diancheng China  0.1
23 Sep 2021 18:15 Rudong China  0.1
23 Sep 2021 19:15 Shangyang China  0.1
23 Sep 2021 19:15 Chengcun China  0.1
23 Sep 2021 19:15 Santouzui China  0.1
23 Sep 2021 20:15 Lajiwei China  0.1
23 Sep 2021 23:45 Paipu China  0.1
23 Sep 2021 23:45 Baimajing China  0.1
23 Sep 2021 23:45 Hsin-ying China  0.1
23 Sep 2021 23:45 Taan China  0.1
23 Sep 2021 18:00 Phu Xuan Ha Vietnam  0.1
23 Sep 2021 18:00 Tuyet iem Vietnam  0.1
23 Sep 2021 18:00 Yuwotou China  0.1
23 Sep 2021 18:00 Dashatou China  0.1
23 Sep 2021 18:00 Jiang'ouwei China  0.1
23 Sep 2021 18:00 Baihao China  0.1
23 Sep 2021 18:00 Taiping China  0.1
24 Sep 2021 00:00 Ch'i-shui China  0.1
23 Sep 2021 18:15 Chung-yuan China  0.1
23 Sep 2021 18:15 Boao China  0.1
24 Sep 2021 00:00 Eman China  0.1
23 Sep 2021 19:45 Hengpi China  0.1
23 Sep 2021 19:45 Beidou China  0.1
23 Sep 2021 19:45 Chen-hai China  0.1
23 Sep 2021 19:45 Shen-ching China  0.1
24 Sep 2021 00:00 Guanjing China  0.1
23 Sep 2021 19:00 Sha-ching China  0.1
23 Sep 2021 19:00 Heping China  0.1
23 Sep 2021 18:00 Nantou China  0.1
24 Sep 2021 00:00 Haikang China  0.1
23 Sep 2021 19:45 Yedwindaung Ywa Myanmar  0.1
23 Sep 2021 19:45 Sidongyaung Myanmar  0.1
23 Sep 2021 19:45 Thechaung Myanmar  0.1
23 Sep 2021 19:45 Kanmaw Myanmar  0.1
23 Sep 2021 19:45 Bemagyauk Ywa Myanmar  0.1
23 Sep 2021 19:45 Mawgaungdon Ywa Myanmar  0.1
23 Sep 2021 19:45 Medaw Myanmar  0.1
23 Sep 2021 19:45 Tawbya Myanmar  0.1
23 Sep 2021 19:45 Thedangyi Myanmar  0.1
23 Sep 2021 18:30 Fan Kwai Tong Hong Kong (China)  0.1
24 Sep 2021 00:00 Hsi-ch'ang-hsu China  0.1
23 Sep 2021 20:45 Tai Long Wan Hong Kong (China)  0.1
24 Sep 2021 00:00 Hsi-ch'ang China  0.1
23 Sep 2021 23:45 Hsin-chou China  0.1
24 Sep 2021 00:00 Shuiwei China  0.1
23 Sep 2021 19:45 Leiktaung Myanmar  0.1
23 Sep 2021 19:45 Awebindat Myanmar  0.1
23 Sep 2021 19:00 Yandun China  0.1
23 Sep 2021 19:00 Huiwen China  0.1
23 Sep 2021 18:15 Sanya China  0.1
23 Sep 2021 19:15 Chiu-chieh China  0.1
23 Sep 2021 19:15 Shekou China  0.1
23 Sep 2021 19:15 Castle Peak New Town Hong Kong (China)  0.1
23 Sep 2021 19:15 Tuen Mun Hong Kong (China)  0.1
23 Sep 2021 18:15 Anyou China  0.1
23 Sep 2021 18:15 Yulin China  0.1