Overall Green Tropical Cyclone alert for DIANMU-21 in Viet Nam, Laos from 22 Sep 2021 12:00 UTC to 23 Sep 2021 12:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green alert Tropical Cyclone for DIANMU-21

in Viet Nam, Laos

22 Sep 2021 00 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

GFS
HWRF
ECMWF

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	ECMWF
Exposed countries
Exposed population	No people in Category 1 or higher
Maximum wind speed	47 km/h
Maximum storm surge	0.2 m (22 Sep 09:45 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
ECMWF Current	47 km/h	0.2 m	195 mm	0.5
ECMWF Overall	61 km/h	0.5 m	445 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

61 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 22 Sep 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
	1	22 Sep 2021 00:00	54	-	-	-	-	-	-	-

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 22 Sep 2021 00:00 UTC

Level	Country	Population
250-500 mm	Thailand, Vietnam, Laos	134,581	+
	Vietnam	63,328
	Thailand	40,547
	Laos	30,706
100-250 mm	China, Vietnam, Laos, Thailand, Myanmar, Cambodia, Malaysia	9,102,632	+
	China	30
	Myanmar	1,789,703
	Vietnam	3,962,763
	Thailand	2,435,526
	Laos	913,285
	Cambodia	69
	Malaysia	1,254
50-100 mm	China, Myanmar, Vietnam, Thailand, Laos, Philippines, Cambodia, Malaysia	52,860,711	+
	China	558,021
	Myanmar	14,288,318
	Vietnam	26,052,453
	Thailand	9,820,181
	Laos	1,751,173
	Philippines	147,715
	Cambodia	200,567
	Malaysia	42,280

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
	1	22 Sep 2021 00:00	435	9.2 million				-	-	-	China, Myanmar, Vietnam, Thailand, Laos, Philippines, Cambodia, Malaysia

Impact estimation for the next 72h

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Rach Gia, Vietnam. This height is estimated for 22 Sep 2021 09:45 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 22 Sep 2021 00:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	22 Sep 2021 09:45	Rach Gia	Vietnam	0.2
	22 Sep 2021 09:45	Kien Thanh	Vietnam	0.2
	22 Sep 2021 06:15	Wadawchaung	Myanmar	0.2
	22 Sep 2021 06:15	Maingtwedaung	Myanmar	0.2
	22 Sep 2021 06:15	Kabaw	Myanmar	0.2
	22 Sep 2021 06:30	Sakanthit	Myanmar	0.2
	22 Sep 2021 06:30	Tawbyagyi	Myanmar	0.2
	22 Sep 2021 06:30	Pyingyi	Myanmar	0.2
	22 Sep 2021 05:15	Sidongyaung	Myanmar	0.2
	22 Sep 2021 05:15	Kanmaw	Myanmar	0.2
	22 Sep 2021 05:15	Bemagyauk Ywa	Myanmar	0.2
	22 Sep 2021 05:15	Medaw	Myanmar	0.2
	22 Sep 2021 08:15	Yemyitkyi	Myanmar	0.2
	22 Sep 2021 08:15	Tharawuntaungnge	Myanmar	0.2
	22 Sep 2021 08:15	Kabingyaung	Myanmar	0.2
	22 Sep 2021 08:15	Mayanchaung	Myanmar	0.2
	22 Sep 2021 08:15	Ma-ainggyon	Myanmar	0.2
	22 Sep 2021 07:30	Mawgaungdon Ywa	Myanmar	0.2
	22 Sep 2021 07:30	Tawbya	Myanmar	0.2
	22 Sep 2021 07:30	Thedangyi	Myanmar	0.2
	22 Sep 2021 07:30	Leiktaung	Myanmar	0.2
	22 Sep 2021 07:30	Awebindat	Myanmar	0.2
	22 Sep 2021 09:00	Ap Giong Ke	Vietnam	0.2
	22 Sep 2021 08:15	Yedwindaung Ywa	Myanmar	0.2
	22 Sep 2021 08:15	Thechaung	Myanmar	0.2
	22 Sep 2021 07:30	Tanzon	Myanmar	0.2
	22 Sep 2021 07:30	Kabyachaung	Myanmar	0.2
	22 Sep 2021 07:30	Yengangyi	Myanmar	0.2
	22 Sep 2021 09:00	Xom Ba Tra	Vietnam	0.2
	22 Sep 2021 12:00	Kayindaung	Myanmar	0.2
	22 Sep 2021 12:00	Wagaru	Myanmar	0.2
	22 Sep 2021 12:00	Wegalaung	Myanmar	0.2
	22 Sep 2021 12:00	Karokpi	Myanmar	0.2
	22 Sep 2021 12:00	Kyaikkami	Myanmar	0.2
	22 Sep 2021 12:00	Kwanhla	Myanmar	0.2
	22 Sep 2021 12:00	Anin	Myanmar	0.1
	22 Sep 2021 08:00	Mergui	Myanmar	0.1
	22 Sep 2021 08:45	Ha Tien	Vietnam	0.1
	22 Sep 2021 08:45	Ap Cau Thang	Vietnam	0.1
	22 Sep 2021 08:30	Phumi Damnak Chang aeur	Cambodia	0.1
	22 Sep 2021 08:30	Khum Angkol	Cambodia	0.1
	22 Sep 2021 12:00	Tagukana	Myanmar	0.1
	22 Sep 2021 08:15	Taung-pi Ywa	Myanmar	0.1
	22 Sep 2021 08:15	Sadeinchaungoya	Myanmar	0.1
	22 Sep 2021 05:30	Kyatchaung	Myanmar	0.1
	22 Sep 2021 12:00	Thinbawzeik	Myanmar	0.1
	22 Sep 2021 08:45	Ban Sin Hai	Thailand	0.1
	22 Sep 2021 08:45	Ban Ratcha Krut	Thailand	0.1
	22 Sep 2021 08:45	Ban Tha Chang	Thailand	0.1
	22 Sep 2021 08:45	Ban Phon Rang	Thailand	0.1
	22 Sep 2021 08:45	Ranong	Thailand	0.1
	22 Sep 2021 08:15	Ra Ghe	Vietnam	0.1
	22 Sep 2021 08:00	Ale-hman	Myanmar	0.1
	22 Sep 2021 08:00	Kalonga Ywa	Myanmar	0.1
	22 Sep 2021 09:45	Kampong Tengah	Myanmar	0.1
	22 Sep 2021 09:45	Kampong Lama	Myanmar	0.1
	22 Sep 2021 09:45	Kawthaung	Myanmar	0.1
	22 Sep 2021 09:45	Ban Hin Dat	Thailand	0.1
	22 Sep 2021 10:45	Pauktaw	Myanmar	0.1
	22 Sep 2021 10:45	Zokali	Myanmar	0.1
	22 Sep 2021 10:45	Taungxun	Myanmar	0.1
	22 Sep 2021 10:45	Taunggyi	Myanmar	0.1
	22 Sep 2021 10:45	Budin	Myanmar	0.1
	22 Sep 2021 10:45	Kadaik	Myanmar	0.1
	22 Sep 2021 10:45	Donwun	Myanmar	0.1
	22 Sep 2021 08:45	Bokpyin	Myanmar	0.1
	22 Sep 2021 08:45	Phuruk Tew	Myanmar	0.1
	22 Sep 2021 08:45	Atwin Bokpyin	Myanmar	0.1
	22 Sep 2021 12:00	Khindan	Myanmar	0.1
	22 Sep 2021 12:00	Darein	Myanmar	0.1
	22 Sep 2021 12:00	Munaing	Myanmar	0.1
	22 Sep 2021 08:45	Kaoh Toch	Cambodia	0.1
	22 Sep 2021 08:45	Kampot	Cambodia	0.1
	22 Sep 2021 12:00	Andin	Myanmar	0.1
	22 Sep 2021 11:00	Mahameik	Myanmar	0.1
	22 Sep 2021 11:00	Thamaseikta	Myanmar	0.1
	22 Sep 2021 11:00	Damathat	Myanmar	0.1
	22 Sep 2021 10:30	Shwe-o	Myanmar	0.1
	22 Sep 2021 09:45	Phumi Ta Tei	Cambodia	0.1
	22 Sep 2021 09:45	Chimeal	Cambodia	0.1
	22 Sep 2021 09:45	Phumi Khsach Sa	Cambodia	0.1
	22 Sep 2021 09:45	Phumi Kandaol	Cambodia	0.1
	22 Sep 2021 09:45	Phumi Ta Ben	Cambodia	0.1
	22 Sep 2021 09:45	Phumi Chrouy Svay	Cambodia	0.1
	22 Sep 2021 12:00	Tanbingyaung	Myanmar	0.1
	22 Sep 2021 12:00	Kawpamagon	Myanmar	0.1
	22 Sep 2021 04:15	Duya	Myanmar	0.1
	22 Sep 2021 04:15	Khawsa	Myanmar	0.1
	22 Sep 2021 08:30	Taungkamet	Myanmar	0.1
	22 Sep 2021 10:00	Ban Bang Pu Kao	Thailand	0.1
	22 Sep 2021 10:00	Ban Tambon Khlon Dan	Thailand	0.1
	22 Sep 2021 10:00	Ban Pak Khlong	Thailand	0.1
	22 Sep 2021 10:00	Ban Hua Khao	Thailand	0.1
	22 Sep 2021 10:00	Anghila	Thailand	0.1
	22 Sep 2021 10:00	Ban Rong Khoei	Thailand	0.1
	22 Sep 2021 10:00	Chon Buri	Thailand	0.1
	22 Sep 2021 07:45	Kim Qui	Vietnam	0.1
	22 Sep 2021 08:45	Duong Dong	Vietnam	0.1
	22 Sep 2021 10:45	Kangyisu	Myanmar	0.1
	22 Sep 2021 06:45	Kanbyin	Myanmar	0.1
	22 Sep 2021 06:45	Kyaukpya	Myanmar	0.1
	22 Sep 2021 04:00	Dani-thagya	Myanmar	0.1
	22 Sep 2021 09:30	Ban Mong Klang	Thailand	0.1
	22 Sep 2021 06:45	Ban Bang Kadan	Thailand	0.1
	22 Sep 2021 06:45	Dan Kao	Thailand	0.1
	22 Sep 2021 06:45	Ban Laem Thong Lang	Thailand	0.1
	22 Sep 2021 06:45	Laem Ngop	Thailand	0.1
	22 Sep 2021 06:45	Ban Nong Khan Song	Thailand	0.1
	22 Sep 2021 10:30	Paung	Myanmar	0.1
	22 Sep 2021 06:45	Ban Bang Bao	Thailand	0.1
	22 Sep 2021 06:45	Ban Wai Chaek	Thailand	0.1
	22 Sep 2021 06:45	Ban Chek Bae	Thailand	0.1
	22 Sep 2021 06:45	Ban Pak Khlong Bang Phra	Thailand	0.1
	22 Sep 2021 06:45	Ban Laem Hin	Thailand	0.1
	22 Sep 2021 06:45	Ban Ao Cho	Thailand	0.1
	22 Sep 2021 06:45	Ban Yai Liu	Thailand	0.1
	22 Sep 2021 06:45	Ban Noen Sung	Thailand	0.1
	22 Sep 2021 06:45	Ban Pak Khlong Tha Luan	Thailand	0.1
	22 Sep 2021 05:45	Ban Takang	Thailand	0.1
	22 Sep 2021 05:45	Laem Khlat	Thailand	0.1
	22 Sep 2021 05:45	Ban Saphan Hin	Thailand	0.1
	22 Sep 2021 08:15	Phumi Kaoh Krabei	Cambodia	0.1
	22 Sep 2021 08:15	Phumi Sre Cham Kraom	Cambodia	0.1
	22 Sep 2021 10:45	Ly Nhon Thon	Vietnam	0.1
	22 Sep 2021 10:45	Dong Hoi	Vietnam	0.1
	22 Sep 2021 10:45	Cua Thon	Vietnam	0.1
	22 Sep 2021 05:00	Kyauktwin	Myanmar	0.1
	22 Sep 2021 05:00	Thayetchaung	Myanmar	0.1
	22 Sep 2021 05:00	Pyinbyugyi	Myanmar	0.1
	22 Sep 2021 05:00	Bok	Myanmar	0.1
	22 Sep 2021 04:45	Ban Tha Kaphak	Thailand	0.1
	22 Sep 2021 04:45	Ban Don Makok Lang	Thailand	0.1
	22 Sep 2021 04:45	Ban Pak Nam Phang Rat	Thailand	0.1
	22 Sep 2021 04:45	Ban Nang Sa	Thailand	0.1
	22 Sep 2021 04:45	Ban Ai Lao	Thailand	0.1
	22 Sep 2021 10:00	Phumi Prek Svay	Cambodia	0.1

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.