Overall Green alert Tropical Cyclone for DIANMU-21
in Viet Nam, Laos
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 GDACS
Exposed countries Viet Nam, Laos
Exposed population No people in Category 1 or higher
Maximum wind speed 65 km/h
Maximum storm surge 0.3 m (23 Sep 13:00 UTC)
Vulnerability High (Vietnam)
Landfall between
23 Sep 2021 06:00 - 23 Sep 2021 18:00

in Viet Nam

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
Current 65 km/h 0.3 m n.a. 0.5
Overall 65 km/h 0.3 m n.a. 0.5

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

Wind

65 km/h Current Max.

Up to 8.5 million people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 22 Sep 2021 12:00 65 4.9 million No people Viet Nam, Cambodia, Laos
Green 2 22 Sep 2021 18:00 65 7.3 million No people Viet Nam, Cambodia, Laos
Green 3 23 Sep 2021 00:00 65 8.9 million No people Viet Nam, Cambodia, Laos, Thailand
Green 4 23 Sep 2021 06:00 65 8.5 million No people Viet Nam, Cambodia, Laos

Bulletin Timeline

Alert Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
GREEN
1 22 Sep 2021 12:00 Tropical depression 46 no people no people 12.8, 113.3
GREEN
2 22 Sep 2021 18:00 Tropical depression 46 no people 1.1 million people 13, 112.4
GREEN
3 23 Sep 2021 00:00 Tropical depression 56 no people 4.7 million people 13.5, 111.2
GREEN
4 23 Sep 2021 06:00 Tropical storm 65 no people 8.5 million people 14.3, 110.2
GREEN
4 23 Sep 2021 18:00 Tropical depression 56 no people no people 15.4, 108 Viet Nam
GREEN
4 24 Sep 2021 06:00 Tropical depression 46 no people no people 15.9, 105.4 Laos, Thailand
GREEN
4 24 Sep 2021 18:00 Tropical depression 37 no people no people 15.9, 103.1 Thailand
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.
Download:



Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country
Vietnam
Cambodia
Laos

Provinces

Region Province Country
Binh Dinh Viet Nam
Phu Yen Viet Nam
Quang Ngai Viet Nam
Gia Lai Viet Nam
Kon Tum Viet Nam
Quang Nam-Da Nang Viet Nam
Rotanokiri Cambodia
Attapeu Laos
Xekong Laos
Thua Thien Hue Viet Nam
Champasak Laos
Quang Tri Viet Nam
Saravan Laos

Populated places

Name Region Province Country City class Population
Kin-hon Binh Dinh Vietnam City 210000 people
Tuy Hòa Phu Yen Vietnam City 69000 people
Quang Ngãi Quang Ngai Vietnam City 33000 people
Tam Ky Quang Nam Vietnam City 58000 people
Kontum Kon Tum Vietnam City -
Plây Cu Gia Lai Vietnam City 110000 people
Hoi An Quang Nam Vietnam City 32000 people
Dà Nang Da Nang Vietnam City -
Hue Thua Thien-Hue Vietnam Major city 280000 people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Ba Gi 12 0
Phu Cat UIH 24 Civ. Paved No 10000
Quinhon unknown 0
Song Cau 3 0
Duc Pho 10 0
Van Canh 58 0
Vinh Thanh 58 0
Mo Duc 40 0
Dong Tre 18 0
Cu Lao Re 5 0
Tuy Hoa North 9 0
Ba To New 60 0
An Khe 421 0
Minh Long 76 0
11 0
Gia Vuc 135 0
Ha Thanh 40 0
Chu Lai 18 0
Plateau Gi 1181 0
Mang Buk 1240 0
Tam Ky 10 0
Plei Do Lim 664 0
Kontum KON 550 0
Pleiku Area PXU 750 Civ. Paved No 6000
Hensel 771 0
Tien Phuoc 60 0
Baldy 7 0
Polei Kleng 570 0
Dak To 2 601 0
3 0
Dak Seang 657 0
An Hoa 20 0
Marble Mountain 9 0
Kham Duc 340 0
Da Nang DAD 6 Civ. Paved Yes 10000
Ha Tan 20 0
Hue-Phu Bai HUI 6 Civ. Paved No 8800

Ports

Name LOCODE Country
Quy Nhon VNUIH Vietnam
Duc Pho Vietnam
Quang Ngai VNXNG Vietnam
Danang VNDAD Vietnam
Red Beach VNRBE Vietnam
Hue VNHUI Vietnam

Dams

Reservoir Dam Name River Year
Yali Se San 2001
Houayho Houayho 1999

Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

...

StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Ky Tan, Vietnam. This height is estimated for 23 Sep 2021 13:00 UTC .

The JRC has developed an experimental global storm surge model. 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.

Locations affected by Storm surge (255 locations). Calculation based on advisory number 4 of 23 Sep 2021 06:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
23 Sep 2021 13:00 Ky Tan Vietnam  0.3
23 Sep 2021 13:00 Duc Pho Vietnam  0.3
23 Sep 2021 13:00 An Hai Vietnam  0.3
23 Sep 2021 12:00 An Lac Vietnam  0.3
23 Sep 2021 12:00 Dien Truong Vietnam  0.3
23 Sep 2021 16:00 Ap Quan Nam Vietnam  0.3
23 Sep 2021 14:00 Phu Xuan Ha Vietnam  0.3
23 Sep 2021 17:00 Da Nang Vietnam  0.3
23 Sep 2021 14:00 An Thach Vietnam  0.2
23 Sep 2021 13:00 Tuyet iem Vietnam  0.2
23 Sep 2021 13:00 Thanh Thuy Vietnam  0.2
23 Sep 2021 16:00 Kampong Bukit Kechil Malaysia  0.2
24 Sep 2021 00:00 Ly Nhon Thon Vietnam  0.2
24 Sep 2021 00:00 Hoa Cam Vietnam  0.2
24 Sep 2021 00:00 Hoi Thong Vietnam  0.2
24 Sep 2021 00:00 Thuan Thien Vietnam  0.2
24 Sep 2021 00:00 Trung Thinh Vietnam  0.2
24 Sep 2021 00:00 Ha Tinh Vietnam  0.2
24 Sep 2021 00:00 Trung Nghia Vietnam  0.2
24 Sep 2021 00:00 Trung Tiet Vietnam  0.2
24 Sep 2021 00:00 Cau Thuong Vietnam  0.2
24 Sep 2021 00:00 Tap Phuc Vietnam  0.2
24 Sep 2021 00:00 Vinh Ngai Vietnam  0.2
24 Sep 2021 00:00 Cau Lo Vietnam  0.2
24 Sep 2021 00:00 Tien Yen Vietnam  0.2
23 Sep 2021 14:00 Hoi An Vietnam  0.2
23 Sep 2021 17:00 Phu Bai Vietnam  0.2
23 Sep 2021 16:00 Kampong Kandang Malaysia  0.2
24 Sep 2021 00:00 Ba Don Vietnam  0.2
24 Sep 2021 00:00 Tho Ngoa Vietnam  0.2
23 Sep 2021 15:00 Sinabol Indonesia  0.2
24 Sep 2021 00:00 Thien Linh Vietnam  0.2
24 Sep 2021 01:00 Hau Con Vietnam  0.2
24 Sep 2021 00:00 Con Soi Vietnam  0.2
23 Sep 2021 10:00 Kien Thanh Vietnam  0.2
23 Sep 2021 17:00 An Cu Vietnam  0.2
23 Sep 2021 16:00 Xom Da Me Vietnam  0.2
23 Sep 2021 17:00 Mui Da Nang Vietnam  0.2
23 Sep 2021 15:00 Pajak Indonesia  0.2
23 Sep 2021 16:00 Kampong Tanjong Dahan Malaysia  0.2
23 Sep 2021 16:00 Kampong Baru Malaysia  0.2
23 Sep 2021 16:00 Kampong Baharu Malaysia  0.2
23 Sep 2021 16:00 Kampong Baharu Sungai Udang Malaysia  0.2
23 Sep 2021 16:00 Kampong Lereh Malaysia  0.2
23 Sep 2021 16:00 Melaka Malaysia  0.2
23 Sep 2021 16:00 Batu Berendam Malaysia  0.2
24 Sep 2021 00:00 Dong Hoi Vietnam  0.2
24 Sep 2021 00:00 Cua Thon Vietnam  0.2
24 Sep 2021 00:00 Van Trang Vietnam  0.2
24 Sep 2021 00:00 Hai Khau Vietnam  0.2
24 Sep 2021 00:00 Xuan Moc Vietnam  0.2
24 Sep 2021 00:00 Ca Lu Vietnam  0.2
24 Sep 2021 00:00 Xi Dua Vietnam  0.2
24 Sep 2021 00:00 Yen Cat Vietnam  0.2
24 Sep 2021 00:00 Diem Phe Vietnam  0.2
23 Sep 2021 10:00 Rach Gia Vietnam  0.2
23 Sep 2021 11:00 Tam Quan Vietnam  0.2
23 Sep 2021 15:00 Port Dickson Malaysia  0.2
23 Sep 2021 16:00 Kampong Mati Malaysia  0.2
23 Sep 2021 16:00 Kampong Tengah Padang Malaysia  0.2
23 Sep 2021 15:00 Kubu Indonesia  0.2
24 Sep 2021 00:00 Vinh Ang Vietnam  0.2
24 Sep 2021 00:00 Kiem Long Vietnam  0.2
24 Sep 2021 00:00 Lang Loi Vietnam  0.2
24 Sep 2021 00:00 Vinh Son Vietnam  0.2
24 Sep 2021 00:00 Ky Anh Vietnam  0.2
24 Sep 2021 00:00 Ba Lang Vietnam  0.2
24 Sep 2021 00:00 Hoang Xa Vietnam  0.2
23 Sep 2021 23:00 Sam Son Vietnam  0.2
23 Sep 2021 23:00 Xa Loan Vietnam  0.2
23 Sep 2021 23:00 Van Lam Trai Vietnam  0.2
23 Sep 2021 10:00 Ca Cong Vietnam  0.2
23 Sep 2021 16:00 Phung Chinh Vietnam  0.2
23 Sep 2021 16:00 Kampong Solok Kemang Malaysia  0.2
24 Sep 2021 00:00 Xom Lap Vietnam  0.2
24 Sep 2021 00:00 Giem Ha Trung Vietnam  0.2
24 Sep 2021 00:00 Dong Ha Vietnam  0.2
23 Sep 2021 15:00 Kampong Endah Malaysia  0.2
23 Sep 2021 16:00 Titiakar Indonesia  0.2
23 Sep 2021 23:00 Dot Dong Vietnam  0.2
23 Sep 2021 23:00 Con Van Vietnam  0.2
24 Sep 2021 00:00 Thon My Thuy Vietnam  0.2
23 Sep 2021 17:00 The Chi Tay Vietnam  0.2
23 Sep 2021 17:00 An Thuan Vietnam  0.2
23 Sep 2021 17:00 Thai Duong Thuong Vietnam  0.2
23 Sep 2021 17:00 Thon Thai Duong Ha Vietnam  0.2
23 Sep 2021 16:00 Thon My Khanh Vietnam  0.2
23 Sep 2021 16:00 Thon Phu An Vietnam  0.2
23 Sep 2021 16:00 Mui Chon Dong Vietnam  0.2
24 Sep 2021 00:00 Cat Son Phuong Vietnam  0.2
24 Sep 2021 00:00 Mui Lay Vietnam  0.2
23 Sep 2021 15:00 Ajabajani Indonesia  0.2
23 Sep 2021 15:00 Kampong Kaum Asli Malaysia  0.2
23 Sep 2021 16:00 Kador Indonesia  0.2
23 Sep 2021 15:00 Sungai Pelek Malaysia  0.2
23 Sep 2021 23:00 Nam Son Vietnam  0.2
23 Sep 2021 23:00 Long Chau Vietnam  0.2
23 Sep 2021 22:00 Quan Phuong Trung Trai Vietnam  0.2
23 Sep 2021 22:00 Lien Phu Vietnam  0.2
23 Sep 2021 23:00 Quan Phuong Ha Vietnam  0.2
23 Sep 2021 23:00 Nam Dong Vietnam  0.2
23 Sep 2021 14:00 Kampong Sekinchang Malaysia  0.2
23 Sep 2021 13:00 Kuala Selangor Malaysia  0.2
23 Sep 2021 15:00 Rajaberiamu Indonesia  0.2
23 Sep 2021 15:00 Kampong Perigi Nanas Malaysia  0.2
23 Sep 2021 22:00 Nghoung Nhan Vietnam  0.2
24 Sep 2021 01:00 Luc Linh Vietnam  0.2
24 Sep 2021 01:00 Cuu Doi Vietnam  0.2
24 Sep 2021 00:00 An Co Vietnam  0.2
23 Sep 2021 21:00 Dai Loc Vietnam  0.2
23 Sep 2021 21:00 Hoang Chau Vietnam  0.2
24 Sep 2021 01:00 Hai Phong Vietnam  0.2
23 Sep 2021 21:00 Ha Tru Vietnam  0.2
23 Sep 2021 16:00 Muar Malaysia  0.2
23 Sep 2021 21:00 Gia Luan Vietnam  0.2
24 Sep 2021 04:00 Dong Cay Vietnam  0.2
23 Sep 2021 09:00 Chanh Giao Vietnam  0.2
23 Sep 2021 20:00 La Son Vietnam  0.2
23 Sep 2021 20:00 Phu Loc Vietnam  0.2
23 Sep 2021 14:00 Tanjong Karang Malaysia  0.2
23 Sep 2021 11:00 Ra Ghe Vietnam  0.2
24 Sep 2021 02:00 Bailong China  0.2
24 Sep 2021 02:00 Yingluo China  0.2
24 Sep 2021 02:00 Caotan China  0.2
23 Sep 2021 15:00 Sungaisiakap Indonesia  0.2
24 Sep 2021 03:00 Guchengling China  0.2
24 Sep 2021 04:00 Vinh Thuc Vietnam  0.2
24 Sep 2021 05:00 Jiangpingxu China  0.2
24 Sep 2021 05:00 Wanwei China  0.2
24 Sep 2021 04:00 Bailong China  0.2
24 Sep 2021 04:00 Baishawan China  0.2
24 Sep 2021 04:00 Ch'i-sha China  0.2
24 Sep 2021 04:00 Hsi-niu-chiao China  0.2
24 Sep 2021 04:00 Guanjing China  0.2
23 Sep 2021 15:00 Bagancina Indonesia  0.2
24 Sep 2021 05:00 Cai Kien Vietnam  0.2
24 Sep 2021 05:00 Cot Doai Vietnam  0.2
24 Sep 2021 05:00 Mong Cai Vietnam  0.2
24 Sep 2021 05:00 Dang Noi Vietnam  0.2
24 Sep 2021 05:00 Dam Ha Vietnam  0.2
24 Sep 2021 00:00 Ban Sen Vietnam  0.2
24 Sep 2021 03:00 Beimu China  0.2
24 Sep 2021 03:00 Yong'an China  0.2
24 Sep 2021 03:00 Longtousha China  0.2
24 Sep 2021 07:00 Dong Dui Vietnam  0.2
24 Sep 2021 03:00 Beihai China  0.2
24 Sep 2021 05:00 Gaode China  0.2
24 Sep 2021 01:00 Guangcun China  0.2
24 Sep 2021 01:00 Ch'i-shui China  0.2
23 Sep 2021 14:00 Bagan Sungai Burong Malaysia  0.2
23 Sep 2021 14:00 Kampong Batu Dua Puloh Tiga Malaysia  0.2
24 Sep 2021 05:00 Jiangping China  0.2
24 Sep 2021 05:00 Jiangshan China  0.2
24 Sep 2021 00:00 Gancheng China  0.2
24 Sep 2021 00:00 Banqiao China  0.2
24 Sep 2021 01:00 Longyou China  0.2
24 Sep 2021 05:00 Hsi-ch'ang-hsu China  0.2
24 Sep 2021 05:00 Hsi-ch'ang China  0.2
24 Sep 2021 02:00 Beili China  0.2
24 Sep 2021 02:00 Duntou China  0.2
24 Sep 2021 02:00 Changhua China  0.2
24 Sep 2021 02:00 Haiwei China  0.2
24 Sep 2021 02:00 Nanluo China  0.2
24 Sep 2021 02:00 Haitou China  0.2
24 Sep 2021 05:00 Dangjiang China  0.2
24 Sep 2021 05:00 Qianjiang China  0.2
23 Sep 2021 08:00 Kim Qui Vietnam  0.1
24 Sep 2021 00:00 Yinggehai China  0.1
24 Sep 2021 00:00 Lingtou China  0.1
24 Sep 2021 00:00 Foluo China  0.1
24 Sep 2021 00:00 Huangliu China  0.1
24 Sep 2021 02:00 Paipu China  0.1
24 Sep 2021 02:00 Baimajing China  0.1
24 Sep 2021 02:00 Hsin-ying China  0.1
24 Sep 2021 02:00 Eman China  0.1
24 Sep 2021 02:00 Taan China  0.1
24 Sep 2021 02:00 Hsin-chou China  0.1
24 Sep 2021 00:00 Haikang China  0.1
24 Sep 2021 00:00 Liu-sha-ying China  0.1
24 Sep 2021 00:00 Liusha China  0.1
24 Sep 2021 00:00 Mai-ch'en-hsu China  0.1
24 Sep 2021 00:00 Maichen China  0.1
23 Sep 2021 14:00 Bagan Sungai Belukang Malaysia  0.1
23 Sep 2021 14:00 Kampong Sungai Lang Malaysia  0.1
24 Sep 2021 00:00 Basuo China  0.1
24 Sep 2021 00:00 Xinxing China  0.1
23 Sep 2021 12:00 Dam Mon Ha Vietnam  0.1
23 Sep 2021 12:00 Ninh Ma Vietnam  0.1
23 Sep 2021 09:00 Vinh Hoi Vietnam  0.1
23 Sep 2021 14:00 Panipahan Indonesia  0.1
24 Sep 2021 00:00 Chongpo China  0.1
24 Sep 2021 00:00 Chiu-so China  0.1
24 Sep 2021 00:00 Jiusuo China  0.1
24 Sep 2021 00:00 Shuiwei China  0.1
23 Sep 2021 14:00 Bagansitoekang Indonesia  0.1
24 Sep 2021 00:00 Qiaotou China  0.1
23 Sep 2021 15:00 Pantai Remis Malaysia  0.1
23 Sep 2021 15:00 Xianmai China  0.1
23 Sep 2021 15:00 Longshe China  0.1
23 Sep 2021 15:00 Taiping China  0.1
23 Sep 2021 09:00 Tuo Nham Vietnam  0.1
23 Sep 2021 14:00 Teloktelgatagonang Indonesia  0.1
23 Sep 2021 14:00 Jawi Jawi Indonesia  0.1
23 Sep 2021 14:00 Sungaiberombang Indonesia  0.1
23 Sep 2021 14:00 Soengaipantaipoekat Indonesia  0.1
23 Sep 2021 14:00 Labuhanbilik Indonesia  0.1
23 Sep 2021 14:00 Wai-lo China  0.1
23 Sep 2021 14:00 Bengtang China  0.1
23 Sep 2021 14:00 Houhai China  0.1
23 Sep 2021 14:00 Baisha China  0.1
23 Sep 2021 14:00 Shaoyao China  0.1
23 Sep 2021 14:00 Xingyou China  0.1
23 Sep 2021 14:00 Huangwu China  0.1
23 Sep 2021 14:00 Bagan Datch Malaysia  0.1
23 Sep 2021 09:00 Song Cau Vietnam  0.1
23 Sep 2021 09:00 Dan Phu Vietnam  0.1
24 Sep 2021 00:00 Yacheng China  0.1
23 Sep 2021 13:00 Jinhe China  0.1
23 Sep 2021 14:00 Houhu China  0.1
23 Sep 2021 14:00 Nayan China  0.1
23 Sep 2021 14:00 Pangkalanlunanag Indonesia  0.1
23 Sep 2021 14:00 Teluk-pulaidalam Indonesia  0.1
23 Sep 2021 14:00 Pangkalanlunang Indonesia  0.1
23 Sep 2021 15:00 Lumut Malaysia  0.1
23 Sep 2021 14:00 Koh Malaysia  0.1
23 Sep 2021 14:00 Kampong Kayan Malaysia  0.1
24 Sep 2021 00:00 Haian China  0.1
24 Sep 2021 00:00 Xiuying China  0.1
24 Sep 2021 00:00 Haikou China  0.1
23 Sep 2021 15:00 Dongjian China  0.1
23 Sep 2021 10:00 Kin-hon Vietnam  0.1
23 Sep 2021 08:00 Song Ong Doc Vietnam  0.1
23 Sep 2021 16:00 Sanya China  0.1
23 Sep 2021 16:00 Anyou China  0.1
23 Sep 2021 16:00 Yulin China  0.1
23 Sep 2021 16:00 Tiandu China  0.1
23 Sep 2021 16:00 Linwang China  0.1
23 Sep 2021 08:00 Xom Rach Tau Vietnam  0.1
23 Sep 2021 16:00 Huangpo China  0.1
23 Sep 2021 14:00 Doulongcun China  0.1
23 Sep 2021 16:00 Chiu-wu-ch'uan China  0.1
23 Sep 2021 14:00 Meilu China  0.1
23 Sep 2021 14:00 Hai-lu China  0.1
23 Sep 2021 15:00 Pangkor Malaysia  0.1
23 Sep 2021 14:00 Baganasahan Indonesia  0.1
23 Sep 2021 16:00 Kampung Jeram Kijang Malaysia  0.1
23 Sep 2021 16:00 Kampung Gula Malaysia  0.1
23 Sep 2021 16:00 Changkat Kledang Malaysia  0.1
23 Sep 2021 16:00 Kampong Terong Malaysia  0.1
23 Sep 2021 14:00 Gerigat Malaysia  0.1
23 Sep 2021 14:00 Rajang Malaysia  0.1
24 Sep 2021 00:00 Boshegang China  0.1
24 Sep 2021 00:00 Longtang China  0.1
24 Sep 2021 00:00 Puqian China  0.1
23 Sep 2021 15:00 Qianshan China  0.1