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 11:00 UTC)
Vulnerability High (Vietnam)
Landfall between
23 Sep 2021 06:00 - 23 Sep 2021 12:00

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 5.2 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
Green 5 23 Sep 2021 12:00 65 5.2 million No people Viet Nam, 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
5 23 Sep 2021 12:00 Tropical storm 65 no people 3.1 million people 15.2, 108.9 Viet Nam
GREEN
5 24 Sep 2021 00:00 Tropical depression 56 no people no people 16.1, 106.4 Laos
GREEN
5 24 Sep 2021 12:00 Tropical depression 37 no people no people 16.2, 103.8 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
Laos

Provinces

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

Populated places

Name Region Province Country City class Population
Quang Ngãi Quang Ngai Vietnam City 33000 people
Tam Ky Quang Nam Vietnam City 58000 people
Hoi An Quang Nam Vietnam City 32000 people
Kin-hon Binh Dinh Vietnam City 210000 people
Tuy Hòa Phu Yen Vietnam City 69000 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)
11 0
Mo Duc 40 0
Chu Lai 18 0
Cu Lao Re 5 0
Minh Long 76 0
Ha Thanh 40 0
Duc Pho 10 0
Ba To New 60 0
Tam Ky 10 0
Gia Vuc 135 0
Tien Phuoc 60 0
Baldy 7 0
3 0
An Hoa 20 0
Vinh Thanh 58 0
Kham Duc 340 0
Ha Tan 20 0
Phu Cat UIH 24 Civ. Paved No 10000
Ba Gi 12 0
Quinhon unknown 0
Van Canh 58 0
Song Cau 3 0
Dong Tre 18 0
Tuy Hoa North 9 0
Saravane VNA 175 Civ. Unpaved No 4900

Ports

Name LOCODE Country
Quang Ngai VNXNG Vietnam
Duc Pho Vietnam
Quy Nhon VNUIH Vietnam

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 11:00 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 (261 locations). Calculation based on advisory number 5 of 23 Sep 2021 12:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
23 Sep 2021 11:00 Ky Tan Vietnam  0.3
23 Sep 2021 11:00 An Hai Vietnam  0.3
23 Sep 2021 11:00 Tuyet iem Vietnam  0.3
23 Sep 2021 11:00 Thanh Thuy Vietnam  0.3
23 Sep 2021 10:00 Dien Truong Vietnam  0.3
23 Sep 2021 19:00 Longtousha China  0.3
23 Sep 2021 09:00 Phu Xuan Ha Vietnam  0.3
23 Sep 2021 09:00 Da Nang Vietnam  0.3
23 Sep 2021 19:00 Yingluo China  0.3
23 Sep 2021 10:00 Duc Pho Vietnam  0.3
23 Sep 2021 10:00 An Lac Vietnam  0.3
23 Sep 2021 19:00 Beimu China  0.3
23 Sep 2021 19:00 Yong'an China  0.3
23 Sep 2021 18:00 Caotan China  0.3
23 Sep 2021 09:00 An Thach Vietnam  0.3
23 Sep 2021 09:00 Ca Cong Vietnam  0.3
23 Sep 2021 08:00 Kien Thanh Vietnam  0.3
23 Sep 2021 09:00 Hoi An Vietnam  0.2
23 Sep 2021 09:00 Phu Bai Vietnam  0.2
23 Sep 2021 08:00 Rach Gia Vietnam  0.2
23 Sep 2021 09:00 Ap Quan Nam Vietnam  0.2
23 Sep 2021 09:00 Xom Da Me Vietnam  0.2
23 Sep 2021 18:00 Guchengling China  0.2
23 Sep 2021 18:00 Bailong China  0.2
23 Sep 2021 09:00 Tam Quan Vietnam  0.2
23 Sep 2021 10:00 An Cu Vietnam  0.2
23 Sep 2021 09:00 Mui Da Nang Vietnam  0.2
23 Sep 2021 18:00 Hsi-niu-chiao China  0.2
23 Sep 2021 18:00 Dangjiang China  0.2
23 Sep 2021 10:00 Phung Chinh Vietnam  0.2
23 Sep 2021 09:00 Thon Phu An Vietnam  0.2
23 Sep 2021 09:00 Mui Chon Dong Vietnam  0.2
23 Sep 2021 18:00 Guanjing China  0.2
23 Sep 2021 18:00 Hsi-ch'ang-hsu China  0.2
23 Sep 2021 18:00 Hsi-ch'ang China  0.2
23 Sep 2021 18:00 Beihai China  0.2
23 Sep 2021 18:00 Gaode China  0.2
23 Sep 2021 18:00 Ch'i-sha China  0.2
23 Sep 2021 18:00 Qianjiang China  0.2
23 Sep 2021 18:00 Shagang China  0.2
23 Sep 2021 09:00 The Chi Tay Vietnam  0.2
23 Sep 2021 09:00 An Thuan Vietnam  0.2
23 Sep 2021 09:00 Thai Duong Thuong Vietnam  0.2
23 Sep 2021 09:00 Thon My Khanh Vietnam  0.2
23 Sep 2021 17:00 Liu-sha-ying China  0.2
23 Sep 2021 17:00 Liusha China  0.2
23 Sep 2021 17:00 Mai-ch'en-hsu China  0.2
23 Sep 2021 17:00 Maichen China  0.2
23 Sep 2021 22:00 Xuan Moc Vietnam  0.2
23 Sep 2021 22:00 Yen Cat Vietnam  0.2
23 Sep 2021 22:00 Diem Phe Vietnam  0.2
23 Sep 2021 22:00 Xa Loan Vietnam  0.2
23 Sep 2021 22:00 Van Lam Trai Vietnam  0.2
23 Sep 2021 23:00 Nam Dong Vietnam  0.2
23 Sep 2021 23:00 Luc Linh Vietnam  0.2
23 Sep 2021 23:00 Cuu Doi Vietnam  0.2
23 Sep 2021 23:00 Hai Phong Vietnam  0.2
23 Sep 2021 23:00 Hoang Chau Vietnam  0.2
23 Sep 2021 23:00 Gia Luan Vietnam  0.2
23 Sep 2021 08:00 Chanh Giao Vietnam  0.2
23 Sep 2021 09:00 Thon Thai Duong Ha Vietnam  0.2
23 Sep 2021 17:00 Ch'i-shui China  0.2
23 Sep 2021 17:00 Haikang China  0.2
23 Sep 2021 17:00 Shuiwei China  0.2
23 Sep 2021 22:00 Hoang Xa Vietnam  0.2
23 Sep 2021 22:00 Sam Son Vietnam  0.2
23 Sep 2021 22:00 Dot Dong Vietnam  0.2
23 Sep 2021 22:00 Nam Son Vietnam  0.2
23 Sep 2021 22:00 Con Van Vietnam  0.2
23 Sep 2021 22:00 Quan Phuong Ha Vietnam  0.2
23 Sep 2021 23:00 Dai Loc Vietnam  0.2
23 Sep 2021 08:00 Kin-hon Vietnam  0.2
23 Sep 2021 09:00 Thon My Thuy Vietnam  0.2
23 Sep 2021 09:00 Giem Ha Trung Vietnam  0.2
23 Sep 2021 09:00 Dong Ha Vietnam  0.2
24 Sep 2021 11:00 Ban Khlong Kao Thailand  0.2
24 Sep 2021 11:00 Laem Thailand  0.2
24 Sep 2021 11:00 Ban Map Lat Thailand  0.2
24 Sep 2021 11:00 Samut Songkhram Thailand  0.2
24 Sep 2021 11:00 Ban Bang Khun Sai Thailand  0.2
24 Sep 2021 11:00 Ban Bang Bo Thailand  0.2
24 Sep 2021 11:00 Ban Pak Tale Thailand  0.2
24 Sep 2021 11:00 Ban Bang Kaeo Thailand  0.2
24 Sep 2021 11:00 Ban Rong Kung Thailand  0.2
24 Sep 2021 11:00 Ban Bang Khut Thailand  0.2
24 Sep 2021 11:00 Ban Sakhla Thailand  0.2
24 Sep 2021 11:00 Muang Samut Prakan Thailand  0.2
24 Sep 2021 11:00 Ban Bang Pu Kao Thailand  0.2
24 Sep 2021 11:00 Ban Tambon Khlon Dan Thailand  0.2
24 Sep 2021 11:00 Ban Pak Khlong Thailand  0.2
24 Sep 2021 11:00 Ban Hua Khao Thailand  0.2
24 Sep 2021 11:00 Anghila Thailand  0.2
24 Sep 2021 11:00 Ban Rong Khoei Thailand  0.2
24 Sep 2021 11:00 Chon Buri Thailand  0.2
24 Sep 2021 00:00 Tap Phuc Vietnam  0.2
24 Sep 2021 00:00 Cau Lo 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 Vinh Ngai Vietnam  0.2
24 Sep 2021 00:00 Tien Yen Vietnam  0.2
23 Sep 2021 22:00 Ca Lu Vietnam  0.2
23 Sep 2021 22:00 Xi Dua Vietnam  0.2
23 Sep 2021 18:00 Baishawan China  0.2
23 Sep 2021 22:00 Ba Lang Vietnam  0.2
23 Sep 2021 22:00 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 22:00 Nghoung Nhan Vietnam  0.2
23 Sep 2021 22:00 An Co Vietnam  0.2
23 Sep 2021 08:00 Melaka Malaysia  0.2
23 Sep 2021 08:00 Kampong Kandang Malaysia  0.2
23 Sep 2021 08:00 Kampong Bukit Kechil Malaysia  0.2
23 Sep 2021 09:00 Cat Son Phuong Vietnam  0.2
23 Sep 2021 08:00 Muar Malaysia  0.2
24 Sep 2021 11:00 Ban Si Racha Thailand  0.2
24 Sep 2021 11:00 Ban Ao Udom Thailand  0.2
24 Sep 2021 11:00 Si Racha Thailand  0.2
24 Sep 2021 00:00 Thuan Thien Vietnam  0.2
24 Sep 2021 00:00 Thien Linh 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 Hau Con Vietnam  0.2
24 Sep 2021 00:00 Con Soi Vietnam  0.2
23 Sep 2021 17:00 Guangcun China  0.2
23 Sep 2021 18:00 Jiangpingxu China  0.2
23 Sep 2021 18:00 Jiangping China  0.2
23 Sep 2021 18:00 Wanwei China  0.2
23 Sep 2021 18:00 Bailong China  0.2
23 Sep 2021 18:00 Jiangshan China  0.2
23 Sep 2021 18:00 Vinh Thuc Vietnam  0.2
23 Sep 2021 18:00 Mong Cai Vietnam  0.2
23 Sep 2021 08:00 Vinh Hoi Vietnam  0.1
23 Sep 2021 09:00 Dong Hoi Vietnam  0.1
23 Sep 2021 09:00 Xom Lap Vietnam  0.1
23 Sep 2021 09:00 Mui Lay Vietnam  0.1
23 Sep 2021 10:00 Ra Ghe Vietnam  0.1
24 Sep 2021 11:00 Ban Don Mot Tanoi Thailand  0.1
24 Sep 2021 11:00 Ban Bang Dha-lu Thailand  0.1
24 Sep 2021 11:00 Ban Kok San Thailand  0.1
24 Sep 2021 11:00 Ban Hlem Chabang Thailand  0.1
23 Sep 2021 17:00 Qiaotou China  0.1
23 Sep 2021 19:00 Cai Kien Vietnam  0.1
23 Sep 2021 19:00 Cot Doai Vietnam  0.1
23 Sep 2021 22:00 Dong Cay Vietnam  0.1
23 Sep 2021 08:00 Tuo Nham Vietnam  0.1
23 Sep 2021 10:00 Kampong Mati Malaysia  0.1
23 Sep 2021 09:00 Kampong Tanjong Dahan Malaysia  0.1
23 Sep 2021 09:00 Kampong Lereh Malaysia  0.1
23 Sep 2021 10:00 Ly Nhon Thon Vietnam  0.1
23 Sep 2021 09:00 Cua Thon Vietnam  0.1
23 Sep 2021 10:00 Ajabajani Indonesia  0.1
23 Sep 2021 08:00 Kampong Tengah Padang Malaysia  0.1
24 Sep 2021 00:00 Vinh Ang Vietnam  0.1
23 Sep 2021 10:00 Ba Don Vietnam  0.1
23 Sep 2021 10:00 Tho Ngoa Vietnam  0.1
24 Sep 2021 11:00 Ban Nong Sala Thailand  0.1
24 Sep 2021 11:00 Ban Pak Khlong Thailand  0.1
24 Sep 2021 11:00 Ban Hua Hin Thailand  0.1
24 Sep 2021 11:00 Ban Bang Kalo Thailand  0.1
24 Sep 2021 11:00 Bang Lamung Thailand  0.1
23 Sep 2021 11:00 Sinabol Indonesia  0.1
24 Sep 2021 00:00 Ky Anh Vietnam  0.1
24 Sep 2021 00:00 Van Trang Vietnam  0.1
24 Sep 2021 00:00 Hai Khau Vietnam  0.1
24 Sep 2021 11:00 Ban Bo Ta Sing Thailand  0.1
24 Sep 2021 11:00 Ban Na Chom Thian Thailand  0.1
24 Sep 2021 11:00 Ban Amphoe Thailand  0.1
23 Sep 2021 17:00 Xinxing China  0.1
23 Sep 2021 20:00 Dang Noi Vietnam  0.1
23 Sep 2021 20:00 Dam Ha Vietnam  0.1
23 Sep 2021 08:00 Song Cau Vietnam  0.1
23 Sep 2021 08:00 Dan Phu Vietnam  0.1
23 Sep 2021 10:00 Pajak Indonesia  0.1
23 Sep 2021 10:00 Port Dickson Malaysia  0.1
23 Sep 2021 09:00 Kampong Baru Malaysia  0.1
23 Sep 2021 09:00 Kampong Solok Kemang Malaysia  0.1
23 Sep 2021 09:00 Kampong Baharu Malaysia  0.1
23 Sep 2021 09:00 Kampong Baharu Sungai Udang Malaysia  0.1
23 Sep 2021 09:00 Batu Berendam Malaysia  0.1
23 Sep 2021 10:00 Kubu Indonesia  0.1
23 Sep 2021 10:00 Kampong Kaum Asli Malaysia  0.1
23 Sep 2021 10:00 Titiakar Indonesia  0.1
23 Sep 2021 10:00 Kador Indonesia  0.1
23 Sep 2021 10:00 Sungai Pelek Malaysia  0.1
24 Sep 2021 01:00 Kiem Long Vietnam  0.1
24 Sep 2021 00:00 Lang Loi Vietnam  0.1
24 Sep 2021 00:00 Vinh Son Vietnam  0.1
23 Sep 2021 10:00 Yacheng China  0.1
24 Sep 2021 11:00 Cha-am Thailand  0.1
23 Sep 2021 11:00 Sungaisiakap Indonesia  0.1
23 Sep 2021 11:00 Yinggehai China  0.1
23 Sep 2021 11:00 Foluo China  0.1
23 Sep 2021 11:00 Huangliu China  0.1
23 Sep 2021 16:00 Eman China  0.1
23 Sep 2021 11:00 Bagancina Indonesia  0.1
23 Sep 2021 11:00 Rajaberiamu Indonesia  0.1
23 Sep 2021 17:00 Haian China  0.1
23 Sep 2021 17:00 Longtang China  0.1
23 Sep 2021 10:00 Dam Mon Ha Vietnam  0.1
23 Sep 2021 10:00 Ninh Ma Vietnam  0.1
23 Sep 2021 08:00 Song Ong Doc Vietnam  0.1
23 Sep 2021 08:00 Kuala Selangor Malaysia  0.1
23 Sep 2021 11:00 Kampong Endah Malaysia  0.1
23 Sep 2021 06:00 Kim Qui Vietnam  0.1
24 Sep 2021 11:00 Ban Kled Thailand  0.1
24 Sep 2021 11:00 Sattahip Thailand  0.1
24 Sep 2021 11:00 Ban Bang Sare Thailand  0.1
24 Sep 2021 11:00 Ban Chong Samae San Thailand  0.1
24 Sep 2021 11:00 Ban Khlot Thailand  0.1
23 Sep 2021 11:00 Kampong Perigi Nanas Malaysia  0.1
23 Sep 2021 08:00 Xom Rach Tau Vietnam  0.1
23 Sep 2021 10:00 Chongpo China  0.1
23 Sep 2021 10:00 Chiu-so China  0.1
23 Sep 2021 10:00 Jiusuo China  0.1
23 Sep 2021 15:00 Haitou China  0.1
23 Sep 2021 15:00 Baimajing China  0.1
23 Sep 2021 15:00 Hsin-ying China  0.1
23 Sep 2021 15:00 Taan China  0.1
23 Sep 2021 15:00 Hsin-chou China  0.1
23 Sep 2021 11:00 Lingtou China  0.1
23 Sep 2021 17:00 Xiuying China  0.1
23 Sep 2021 20:00 Ban Sen Vietnam  0.1
23 Sep 2021 17:00 Haikou China  0.1
23 Sep 2021 15:00 Xom Cua Tieu Vietnam  0.1
23 Sep 2021 15:00 Ap Dong Thanh Vietnam  0.1
23 Sep 2021 15:00 Ap Ben Da Vietnam  0.1
23 Sep 2021 16:00 Vung Tau Vietnam  0.1
23 Sep 2021 12:00 La Son Vietnam  0.1
23 Sep 2021 19:00 Ha Tru Vietnam  0.1
23 Sep 2021 13:00 Phu Loc Vietnam  0.1
23 Sep 2021 13:00 Tanjong Karang Malaysia  0.1
23 Sep 2021 10:00 Sanya China  0.1
23 Sep 2021 10:00 Anyou China  0.1
23 Sep 2021 10:00 Yulin China  0.1
23 Sep 2021 10:00 Tiandu China  0.1
23 Sep 2021 10:00 Linwang China  0.1
24 Sep 2021 12:00 Ban Huai Sai Tai Thailand  0.1
24 Sep 2021 12:00 Hua Hin Thailand  0.1
24 Sep 2021 12:00 Ban Bang Gwai Thailand  0.1
24 Sep 2021 11:00 Ban Hua Don Thailand  0.1
23 Sep 2021 12:00 Teloktelgatagonang Indonesia  0.1
23 Sep 2021 11:00 Panipahan Indonesia  0.1
23 Sep 2021 15:00 Paipu China  0.1
23 Sep 2021 11:00 Bagansitoekang Indonesia  0.1
23 Sep 2021 11:00 Houhu China  0.1
23 Sep 2021 11:00 Bengtang China  0.1
23 Sep 2021 11:00 Houhai China  0.1
23 Sep 2021 11:00 Baisha China  0.1
23 Sep 2021 11:00 Shaoyao China  0.1
23 Sep 2021 11:00 Xingyou China  0.1
23 Sep 2021 11:00 Huangwu China  0.1
23 Sep 2021 11:00 Nayan China  0.1
23 Sep 2021 12:00 Gancheng China  0.1
23 Sep 2021 12:00 Banqiao China  0.1
23 Sep 2021 12:00 Longyou China  0.1
23 Sep 2021 15:00 Haiwei China  0.1
23 Sep 2021 15:00 Nanluo China  0.1
23 Sep 2021 17:00 Boshegang China  0.1