Overall Green Tropical Cyclone alert for SONCA-17 in Viet Nam, Laos, Thailand from 21 Jul 2017 00:00 UTC to 25 Jul 2017 06:00 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 SONCA-17

in Viet Nam, Laos, Thailand

21 Jul 2017 06 UTC

click on

to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

GFS
HWRF
ECMWF

Impact based on all weather systems in the area

Impact

Tropical Cyclone SONCA-17 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	HWRF
Exposed countries
Exposed population	No people in Category 1 or higher
Maximum wind speed	69 km/h
Maximum storm surge	0.2 m (22 Jul 04:45 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
HWRF Current	69 km/h	0.2 m	n.a.	0.5
HWRF Overall	95 km/h	0.5 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

95 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 21 Jul 2017 06:00 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	21 Jul 2017 06:00	69	-	-	-	-	-	-	-

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

No exposed population (greater than 50mm) based on the bulletin of 21 Jul 2017 06:00 UTC

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	21 Jul 2017 06:00	-	-	-	-	-	-	-	-

Impact estimation for the next 72h

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Taiping, China. This height is estimated for 22 Jul 2017 04:45 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 21 Jul 2017 06:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	22 Jul 2017 04:45	Taiping	China	0.2
	22 Jul 2017 04:45	Xianmai	China	0.2
	22 Jul 2017 04:45	Longshe	China	0.2
	22 Jul 2017 04:45	Dongli	China	0.2
	21 Jul 2017 14:30	Dongshan	China	0.2
	21 Jul 2017 14:30	Zhanjiang	China	0.2
	21 Jul 2017 14:30	Ma-hsieh	China	0.2
	21 Jul 2017 14:30	Dongjian	China	0.2
	21 Jul 2017 14:30	Badongxu	China	0.2
	21 Jul 2017 14:30	Houhu	China	0.2
	21 Jul 2017 14:30	Bengtang	China	0.2
	21 Jul 2017 14:30	Houhai	China	0.2
	21 Jul 2017 14:30	Baisha	China	0.2
	21 Jul 2017 14:30	Shaoyao	China	0.2
	21 Jul 2017 14:30	Xingyou	China	0.2
	21 Jul 2017 14:30	Huangwu	China	0.2
	21 Jul 2017 14:30	Doulongcun	China	0.2
	22 Jul 2017 01:45	Guanchang	China	0.2
	22 Jul 2017 01:45	Tung-li	China	0.2
	22 Jul 2017 01:45	Jinhe	China	0.2
	22 Jul 2017 01:45	Wai-lo	China	0.2
	21 Jul 2017 21:45	Yingluo	China	0.2
	21 Jul 2017 21:45	Caotan	China	0.2
	21 Jul 2017 21:45	Longtousha	China	0.2
	21 Jul 2017 21:45	Yingzai	China	0.2
	21 Jul 2017 21:30	Yong'an	China	0.2
	21 Jul 2017 21:30	Shankou	China	0.2
	21 Jul 2017 22:00	Bailong	China	0.2
	21 Jul 2017 22:00	Beimu	China	0.2
	22 Jul 2017 04:00	Cat Son Phuong	Vietnam	0.1
	22 Jul 2017 04:00	Mui Lay	Vietnam	0.1
	22 Jul 2017 04:00	Giem Ha Trung	Vietnam	0.1
	22 Jul 2017 04:00	Dong Ha	Vietnam	0.1
	22 Jul 2017 03:15	Nayan	China	0.1
	21 Jul 2017 20:45	Gaode	China	0.1
	21 Jul 2017 20:45	Guchengling	China	0.1
	21 Jul 2017 12:15	Chiu-wu-ch'uan	China	0.1
	21 Jul 2017 12:15	Meilu	China	0.1
	21 Jul 2017 12:15	Hai-lu	China	0.1
	21 Jul 2017 10:30	Phu Bai	Vietnam	0.1
	21 Jul 2017 10:30	Thon My Khanh	Vietnam	0.1
	21 Jul 2017 10:30	La Son	Vietnam	0.1
	21 Jul 2017 10:30	Ha Tru	Vietnam	0.1
	21 Jul 2017 10:30	Phung Chinh	Vietnam	0.1
	21 Jul 2017 10:30	Phu Loc	Vietnam	0.1
	21 Jul 2017 10:30	Thon Phu An	Vietnam	0.1
	21 Jul 2017 10:30	Mui Chon Dong	Vietnam	0.1
	21 Jul 2017 09:15	Phu Xuan Ha	Vietnam	0.1
	21 Jul 2017 09:15	Tuyet iem	Vietnam	0.1
	21 Jul 2017 09:15	Thanh Thuy	Vietnam	0.1
	21 Jul 2017 09:30	Da Nang	Vietnam	0.1
	21 Jul 2017 09:30	Xom Da Me	Vietnam	0.1
	21 Jul 2017 09:30	Mui Da Nang	Vietnam	0.1
	21 Jul 2017 09:30	Hoi An	Vietnam	0.1
	22 Jul 2017 06:00	Taipang	China	0.1
	22 Jul 2017 06:00	Shagang	China	0.1
	22 Jul 2017 06:00	Aotou	China	0.1
	22 Jul 2017 06:00	Luzui	China	0.1
	22 Jul 2017 06:00	Hsia-yung	China	0.1
	22 Jul 2017 06:00	Renshan	China	0.1
	21 Jul 2017 12:00	Duya	Myanmar	0.1
	21 Jul 2017 12:00	Khawsa	Myanmar	0.1
	21 Jul 2017 16:00	Ninh Hoa	Vietnam	0.1
	21 Jul 2017 16:00	Van Ninh	Vietnam	0.1
	21 Jul 2017 16:00	Dong Hai	Vietnam	0.1
	21 Jul 2017 16:00	Ninh Phuoc	Vietnam	0.1
	21 Jul 2017 16:00	Bai Tre	Vietnam	0.1
	21 Jul 2017 12:15	Shuidong	China	0.1
	21 Jul 2017 12:15	Dianbai	China	0.1
	21 Jul 2017 23:00	Luc Linh	Vietnam	0.1
	21 Jul 2017 23:00	Cuu Doi	Vietnam	0.1
	21 Jul 2017 23:00	An Co	Vietnam	0.1
	21 Jul 2017 23:00	Dai Loc	Vietnam	0.1
	21 Jul 2017 11:30	Mashan	China	0.1
	21 Jul 2017 11:30	Pingsha	China	0.1
	21 Jul 2017 11:30	Xiaolin	China	0.1
	21 Jul 2017 11:30	San-tsao	China	0.1
	21 Jul 2017 09:15	An Thach	Vietnam	0.1
	21 Jul 2017 21:30	Hsi-niu-chiao	China	0.1
	21 Jul 2017 21:30	Pingshan	China	0.1
	21 Jul 2017 21:30	Guanjing	China	0.1
	21 Jul 2017 21:30	Hsi-ch'ang-hsu	China	0.1
	21 Jul 2017 21:30	Hsi-ch'ang	China	0.1
	21 Jul 2017 16:00	Tho Ngoa	Vietnam	0.1
	21 Jul 2017 16:00	Ly Nhon Thon	Vietnam	0.1
	21 Jul 2017 16:00	Dong Hoi	Vietnam	0.1
	21 Jul 2017 20:00	Bailong	China	0.1
	21 Jul 2017 20:00	Jiangshan	China	0.1
	21 Jul 2017 20:00	Baishawan	China	0.1
	21 Jul 2017 20:00	Fangcheng	China	0.1
	21 Jul 2017 20:00	Gongche	China	0.1
	21 Jul 2017 20:00	Ch'i-sha	China	0.1
	21 Jul 2017 20:00	Longmen	China	0.1
	21 Jul 2017 21:30	Thai Duong Thuong	Vietnam	0.1
	21 Jul 2017 21:30	Thon Thai Duong Ha	Vietnam	0.1
	21 Jul 2017 23:45	Qiandong	China	0.1
	21 Jul 2017 23:45	Jingzhou	China	0.1
	21 Jul 2017 23:45	Huanglong	China	0.1
	21 Jul 2017 23:45	Huanggang	China	0.1
	21 Jul 2017 23:45	Raoping	China	0.1
	21 Jul 2017 23:45	Zhelin	China	0.1
	21 Jul 2017 23:45	Chelim	China	0.1
	21 Jul 2017 23:45	Gongkou	China	0.1
	21 Jul 2017 10:00	Yacheng	China	0.1
	21 Jul 2017 20:30	Jiangpingxu	China	0.1
	21 Jul 2017 20:30	Jiangping	China	0.1
	21 Jul 2017 20:30	Wanwei	China	0.1
	21 Jul 2017 12:00	Kiem Long	Vietnam	0.1
	21 Jul 2017 12:00	Ba Don	Vietnam	0.1
	21 Jul 2017 22:00	Dang Noi	Vietnam	0.1
	21 Jul 2017 22:00	Dam Ha	Vietnam	0.1
	21 Jul 2017 22:00	Cai Kien	Vietnam	0.1
	21 Jul 2017 12:15	Vinh Son	Vietnam	0.1
	21 Jul 2017 11:30	Thon My Thuy	Vietnam	0.1
	21 Jul 2017 22:15	Cot Doai	Vietnam	0.1
	21 Jul 2017 17:45	Cheng'anwei	China	0.1
	21 Jul 2017 17:45	Fumunchai	China	0.1
	21 Jul 2017 17:45	Fumuntschai	China	0.1
	21 Jul 2017 17:45	Baihao	China	0.1
	21 Jul 2017 17:45	Taiping	China	0.1
	21 Jul 2017 17:45	Sha-ching	China	0.1
	21 Jul 2017 17:45	Heping	China	0.1
	21 Jul 2017 18:30	Shuiwei	China	0.1
	21 Jul 2017 18:30	Liu-sha-ying	China	0.1
	21 Jul 2017 18:30	Liusha	China	0.1
	21 Jul 2017 18:30	Mai-ch'en-hsu	China	0.1
	21 Jul 2017 18:30	Maichen	China	0.1
	22 Jul 2017 04:15	Bebeladan	Philippines	0.1
	22 Jul 2017 04:15	El Nido	Philippines	0.1
	22 Jul 2017 04:15	Camago	Philippines	0.1
	22 Jul 2017 04:15	Manlalec	Philippines	0.1
	22 Jul 2017 04:15	Barotuan	Philippines	0.1
	22 Jul 2017 04:15	Oton	Philippines	0.1
	22 Jul 2017 04:15	Palalong	Philippines	0.1
	22 Jul 2017 04:15	Sibaltan	Philippines	0.1
	22 Jul 2017 04:15	Maytiguid	Philippines	0.1
	22 Jul 2017 04:15	Batas	Philippines	0.1
	22 Jul 2017 04:15	Pinamalayan	Philippines	0.1
	21 Jul 2017 10:00	Chiu-so	China	0.1
	21 Jul 2017 10:00	Jiusuo	China	0.1
	21 Jul 2017 22:15	Vinh Thuc	Vietnam	0.1
	21 Jul 2017 22:15	Mong Cai	Vietnam	0.1
	21 Jul 2017 14:30	The Chi Tay	Vietnam	0.1
	21 Jul 2017 22:45	Hoang Chau	Vietnam	0.1
	21 Jul 2017 23:00	Hai Phong	Vietnam	0.1
	21 Jul 2017 23:00	Thuy U	Vietnam	0.1
	21 Jul 2017 15:00	Tap Phuc	Vietnam	0.1
	21 Jul 2017 15:00	Vinh Ngai	Vietnam	0.1
	21 Jul 2017 15:00	Tien Yen	Vietnam	0.1
	21 Jul 2017 08:45	Linwang	China	0.1
	21 Jul 2017 08:45	Tang Kiu	China	0.1
	21 Jul 2017 08:45	Tengqiao	China	0.1
	21 Jul 2017 08:45	Yingzhou	China	0.1
	21 Jul 2017 22:30	Ban Sen	Vietnam	0.1
	21 Jul 2017 14:45	Cau Lo	Vietnam	0.1
	21 Jul 2017 12:00	Diancheng	China	0.1
	21 Jul 2017 12:00	Luewei	China	0.1
	21 Jul 2017 12:00	Shadi	China	0.1
	21 Jul 2017 22:15	Gia Luan	Vietnam	0.1
	21 Jul 2017 15:15	Ca Lu	Vietnam	0.1
	21 Jul 2017 15:15	Ba Lang	Vietnam	0.1
	21 Jul 2017 15:15	Xi Dua	Vietnam	0.1
	21 Jul 2017 10:30	An Thuan	Vietnam	0.1
	21 Jul 2017 12:15	Santouzui	China	0.1
	21 Jul 2017 12:15	Hsi-t'ou	China	0.1
	21 Jul 2017 12:15	Lengzilin	China	0.1
	21 Jul 2017 16:00	Lang Loi	Vietnam	0.1
	21 Jul 2017 12:45	Lajiwei	China	0.1
	21 Jul 2017 12:45	Fan Kwai Tong	Hong Kong (China)	0.1
	21 Jul 2017 12:45	Tai Long Wan	Hong Kong (China)	0.1
	21 Jul 2017 12:45	Lau Fau Sha	Hong Kong (China)	0.1
	21 Jul 2017 09:00	Hsin-ts'un	China	0.1
	21 Jul 2017 09:00	Sancai	China	0.1
	21 Jul 2017 09:00	Lingcheng	China	0.1
	21 Jul 2017 12:30	Hsin-chou	China	0.1
	21 Jul 2017 22:15	Shagang	China	0.1
	21 Jul 2017 22:15	Beihai	China	0.1
	21 Jul 2017 22:15	Dangjiang	China	0.1
	21 Jul 2017 22:15	Qianjiang	China	0.1
	21 Jul 2017 11:45	Magang	China	0.1
	21 Jul 2017 20:00	Xuan Moc	Vietnam	0.1
	21 Jul 2017 20:00	Hoang Xa	Vietnam	0.1
	21 Jul 2017 20:00	Yen Cat	Vietnam	0.1
	21 Jul 2017 20:00	Sam Son	Vietnam	0.1
	21 Jul 2017 14:30	Hoa Cam	Vietnam	0.1
	21 Jul 2017 14:30	Hoi Thong	Vietnam	0.1
	21 Jul 2017 12:00	Baipu	China	0.1
	21 Jul 2017 23:30	Cheung Kang	Hong Kong (China)	0.1
	21 Jul 2017 23:30	Imtin	China	0.1
	21 Jul 2017 23:30	Cheung Wo	Hong Kong (China)	0.1
	21 Jul 2017 23:30	Pak Sha Au	Hong Kong (China)	0.1
	21 Jul 2017 23:30	Khitschhung	China	0.1
	21 Jul 2017 23:30	Dapeng	China	0.1
	21 Jul 2017 13:00	Chixi	China	0.1
	21 Jul 2017 22:15	Nam Dong	Vietnam	0.1
	21 Jul 2017 11:15	Rudong	China	0.1
	21 Jul 2017 11:15	Shangyang	China	0.1
	21 Jul 2017 15:30	Diem Phe	Vietnam	0.1
	21 Jul 2017 15:30	Dot Dong	Vietnam	0.1
	21 Jul 2017 15:30	Nam Son	Vietnam	0.1
	21 Jul 2017 09:30	Sanya	China	0.1
	22 Jul 2017 00:15	Houzhai	China	0.1
	22 Jul 2017 00:15	Shenao	China	0.1
	22 Jul 2017 00:15	Nanao	China	0.1
	22 Jul 2017 05:30	Rach Gia	Vietnam	0.1
	22 Jul 2017 05:30	Kien Thanh	Vietnam	0.1
	21 Jul 2017 15:30	Xa Loan	Vietnam	0.1
	21 Jul 2017 15:30	Van Lam Trai	Vietnam	0.1
	21 Jul 2017 15:30	Con Van	Vietnam	0.1
	21 Jul 2017 15:30	Long Chau	Vietnam	0.1
	21 Jul 2017 14:30	Doumen	China	0.1
	21 Jul 2017 14:30	Ching-an	China	0.1
	21 Jul 2017 14:30	Baijiao	China	0.1
	21 Jul 2017 14:30	Miaojiao	China	0.1
	21 Jul 2017 14:30	Shenwan	China	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.