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

22 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	96 km/h
Maximum storm surge	0.2 m (23 Jul 00:30 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
HWRF Current	96 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 22 Jul 2017 06:00 UTC

See TC classification SSHS

Wind Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Winds (km/h)	Pop in Cat. 1 or higher	TS	Cat. 1	Cat. 2	Cat. 3	Cat. 4	Cat. 5
1	21 Jul 2017 06:00	69	-	-	-	-	-	-	-
2	21 Jul 2017 12:00	72	-	-	-	-	-	-	-
3	22 Jul 2017 06:00	96	-	-	-	-	-	-	-

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 22 Jul 2017 06:00 UTC

Rain Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Rainfall (mm)	Pop >100mm or higher	50-100	100-250	250-500	500-750	750-1000	>1000
1	21 Jul 2017 06:00	-	-	-	-	-	-	-	-
2	21 Jul 2017 12:00	-	-	-	-	-	-	-	-
3	22 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 Zhelang, China. This height is estimated for 23 Jul 2017 00:30 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 22 Jul 2017 06:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	23 Jul 2017 00:30	Zhelang	China	0.2
	23 Jul 2017 00:30	Jieshi	China	0.2
	23 Jul 2017 00:15	Qiandong	China	0.2
	23 Jul 2017 00:15	Jingzhou	China	0.2
	23 Jul 2017 00:15	Huanglong	China	0.2
	23 Jul 2017 00:15	Huanggang	China	0.2
	23 Jul 2017 00:15	Raoping	China	0.2
	23 Jul 2017 00:15	Zhelin	China	0.2
	23 Jul 2017 00:15	Chelim	China	0.2
	23 Jul 2017 00:15	Gongkou	China	0.2
	23 Jul 2017 00:15	Houzhai	China	0.2
	23 Jul 2017 00:15	Shenao	China	0.2
	23 Jul 2017 00:15	Nanao	China	0.2
	23 Jul 2017 00:30	Jiesheng	China	0.2
	23 Jul 2017 00:30	Tianqian	China	0.2
	23 Jul 2017 00:45	Hudong	China	0.2
	22 Jul 2017 11:45	Rach Gia	Vietnam	0.2
	22 Jul 2017 11:45	Kien Thanh	Vietnam	0.2
	22 Jul 2017 22:00	Jiazi	China	0.2
	22 Jul 2017 22:00	Changqingwei	China	0.2
	22 Jul 2017 14:00	Taiping	China	0.2
	22 Jul 2017 14:00	Xianmai	China	0.2
	22 Jul 2017 14:00	Longshe	China	0.2
	22 Jul 2017 14:00	Dongli	China	0.2
	22 Jul 2017 16:15	Guanchang	China	0.2
	22 Jul 2017 16:15	Tung-li	China	0.2
	22 Jul 2017 16:15	Jinhe	China	0.2
	22 Jul 2017 16:15	Wai-lo	China	0.2
	22 Jul 2017 23:00	Shenquan	China	0.2
	22 Jul 2017 21:45	Donghong	China	0.2
	22 Jul 2017 21:45	Jinghai	China	0.2
	22 Jul 2017 21:45	Haimen	China	0.2
	22 Jul 2017 22:00	Guangao	China	0.2
	23 Jul 2017 00:30	Taipang	China	0.2
	23 Jul 2017 00:30	Shagang	China	0.2
	23 Jul 2017 00:30	Aotou	China	0.2
	23 Jul 2017 00:30	Luzui	China	0.2
	23 Jul 2017 00:30	Hsia-yung	China	0.2
	23 Jul 2017 00:30	Renshan	China	0.2
	22 Jul 2017 14:30	Dongshan	China	0.2
	22 Jul 2017 14:30	Zhanjiang	China	0.2
	22 Jul 2017 14:30	Ma-hsieh	China	0.2
	22 Jul 2017 14:30	Dongjian	China	0.2
	22 Jul 2017 14:30	Badongxu	China	0.2
	22 Jul 2017 14:30	Houhu	China	0.2
	22 Jul 2017 14:30	Bengtang	China	0.2
	22 Jul 2017 14:30	Houhai	China	0.2
	22 Jul 2017 14:30	Baisha	China	0.2
	22 Jul 2017 14:30	Shaoyao	China	0.2
	22 Jul 2017 14:30	Xingyou	China	0.2
	22 Jul 2017 14:30	Huangwu	China	0.2
	22 Jul 2017 14:30	Doulongcun	China	0.2
	22 Jul 2017 22:00	Ch'ao-yang-hsien	China	0.2
	22 Jul 2017 22:00	Dahao	China	0.2
	22 Jul 2017 22:00	Aotou	China	0.2
	22 Jul 2017 22:00	Daitou	China	0.2
	22 Jul 2017 20:15	Chiang-t'ien	China	0.2
	22 Jul 2017 20:15	Guanjing	China	0.2
	22 Jul 2017 20:15	Qingfeng	China	0.2
	22 Jul 2017 20:15	Houtian	China	0.2
	22 Jul 2017 19:45	Baisheng	China	0.2
	22 Jul 2017 19:45	Ch'ang-t'an-wo	Taiwan	0.2
	22 Jul 2017 19:45	Chin-feng	China	0.2
	22 Jul 2017 19:45	Wuhang	China	0.2
	22 Jul 2017 16:00	Nayan	China	0.2
	22 Jul 2017 20:15	Chang-chiang	China	0.2
	22 Jul 2017 20:00	Tantou	China	0.1
	22 Jul 2017 20:00	Yunlong	China	0.1
	23 Jul 2017 02:15	Magong	China	0.1
	23 Jul 2017 02:15	Jizhongtuo	China	0.1
	23 Jul 2017 02:15	Shanwei	China	0.1
	22 Jul 2017 19:30	Beicuo	China	0.1
	22 Jul 2017 19:30	Pingtan	China	0.1
	22 Jul 2017 12:15	Chiu-wu-ch'uan	China	0.1
	22 Jul 2017 12:15	Meilu	China	0.1
	22 Jul 2017 12:15	Hai-lu	China	0.1
	22 Jul 2017 22:30	Siwei	China	0.1
	22 Jul 2017 11:00	Ap Cau Thang	Vietnam	0.1
	22 Jul 2017 11:00	Xom Ba Tra	Vietnam	0.1
	22 Jul 2017 11:00	Ap Giong Ke	Vietnam	0.1
	23 Jul 2017 03:15	Yandun	China	0.1
	23 Jul 2017 03:15	Huiwen	China	0.1
	23 Jul 2017 05:45	Pinghai	China	0.1
	23 Jul 2017 02:30	Gangkou	China	0.1
	23 Jul 2017 02:30	Houmen	China	0.1
	23 Jul 2017 03:30	Boao	China	0.1
	23 Jul 2017 06:00	Hele	China	0.1
	23 Jul 2017 03:45	Chung-yuan	China	0.1
	22 Jul 2017 12:00	Shuidong	China	0.1
	22 Jul 2017 12:00	Dianbai	China	0.1
	23 Jul 2017 02:15	Chen Lan	China	0.1
	23 Jul 2017 02:15	Qinglan	China	0.1
	22 Jul 2017 19:15	Hushi	China	0.1
	22 Jul 2017 19:15	Hanjiang	China	0.1
	22 Jul 2017 19:15	Chiang-k'ou	China	0.1
	22 Jul 2017 19:15	Daitou	China	0.1
	22 Jul 2017 19:15	Tangbian	China	0.1
	22 Jul 2017 19:15	Shicheng	China	0.1
	23 Jul 2017 06:00	Fanhe	China	0.1
	23 Jul 2017 04:45	Thai Duong Thuong	Vietnam	0.1
	23 Jul 2017 04:45	Thon Thai Duong Ha	Vietnam	0.1
	23 Jul 2017 04:45	Thon My Khanh	Vietnam	0.1
	23 Jul 2017 06:00	Cheung Kang	Hong Kong (China)	0.1
	23 Jul 2017 06:00	Imtin	China	0.1
	23 Jul 2017 06:00	Cheung Wo	Hong Kong (China)	0.1
	23 Jul 2017 06:00	Pak Sha Au	Hong Kong (China)	0.1
	23 Jul 2017 06:00	Khitschhung	China	0.1
	23 Jul 2017 06:00	Dapeng	China	0.1
	22 Jul 2017 11:15	Magang	China	0.1
	22 Jul 2017 11:15	Diancheng	China	0.1
	22 Jul 2017 13:15	Mashan	China	0.1
	22 Jul 2017 13:15	Pingsha	China	0.1
	22 Jul 2017 13:15	Xiaolin	China	0.1
	22 Jul 2017 13:15	San-tsao	China	0.1
	22 Jul 2017 09:00	Phu Xuan Ha	Vietnam	0.1
	22 Jul 2017 09:00	Tuyet iem	Vietnam	0.1
	22 Jul 2017 09:00	Thanh Thuy	Vietnam	0.1
	22 Jul 2017 09:15	Da Nang	Vietnam	0.1
	22 Jul 2017 09:15	Xom Da Me	Vietnam	0.1
	22 Jul 2017 09:15	Mui Da Nang	Vietnam	0.1
	22 Jul 2017 09:15	Hoi An	Vietnam	0.1
	22 Jul 2017 10:15	Phu Bai	Vietnam	0.1
	22 Jul 2017 10:15	La Son	Vietnam	0.1
	22 Jul 2017 10:15	Ha Tru	Vietnam	0.1
	22 Jul 2017 10:15	Phung Chinh	Vietnam	0.1
	22 Jul 2017 10:15	Phu Loc	Vietnam	0.1
	22 Jul 2017 10:15	Thon Phu An	Vietnam	0.1
	22 Jul 2017 10:15	Mui Chon Dong	Vietnam	0.1
	22 Jul 2017 09:00	An Thach	Vietnam	0.1
	23 Jul 2017 02:45	Hsin-ts'un	China	0.1
	23 Jul 2017 02:45	Sancai	China	0.1
	23 Jul 2017 02:45	Lingcheng	China	0.1
	23 Jul 2017 05:45	Baipu	China	0.1
	23 Jul 2017 03:00	Duya	Myanmar	0.1
	23 Jul 2017 03:00	Khawsa	Myanmar	0.1
	22 Jul 2017 11:15	Cat Son Phuong	Vietnam	0.1
	22 Jul 2017 11:15	Giem Ha Trung	Vietnam	0.1
	22 Jul 2017 11:15	Dong Ha	Vietnam	0.1
	22 Jul 2017 11:15	Thon My Thuy	Vietnam	0.1
	22 Jul 2017 10:45	Rudong	China	0.1
	22 Jul 2017 10:45	Shangyang	China	0.1
	22 Jul 2017 18:15	Cao Yu	China	0.1
	22 Jul 2017 20:00	Nanri	China	0.1
	22 Jul 2017 20:00	Gaoshan	China	0.1
	22 Jul 2017 20:00	Fuye	China	0.1
	22 Jul 2017 19:45	Jiangjing	China	0.1
	22 Jul 2017 19:45	Gangtou	China	0.1
	22 Jul 2017 19:45	San Shah	China	0.1
	22 Jul 2017 19:15	Yuxi	China	0.1
	22 Jul 2017 19:15	Longtian	China	0.1
	23 Jul 2017 02:30	Dong'ao	China	0.1
	22 Jul 2017 11:00	Santouzui	China	0.1
	22 Jul 2017 11:00	Hsi-t'ou	China	0.1
	23 Jul 2017 00:00	Gongqiancun	China	0.1
	23 Jul 2017 00:00	Chencheng	China	0.1
	22 Jul 2017 22:00	Yingluo	China	0.1
	22 Jul 2017 22:00	Caotan	China	0.1
	22 Jul 2017 22:00	Longtousha	China	0.1
	22 Jul 2017 22:00	Yingzai	China	0.1
	23 Jul 2017 03:45	Linwang	China	0.1
	23 Jul 2017 03:45	Tang Kiu	China	0.1
	23 Jul 2017 03:45	Tengqiao	China	0.1
	23 Jul 2017 03:45	Yingzhou	China	0.1
	23 Jul 2017 00:15	Tai Po	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Won Hang	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Tain Sha Tsui	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Central	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Tai Po Industrial Estate	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Kowloon	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Wan Chai	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Dabu	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Tsz Wa Chan	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Chung Hom Kok	Hong Kong (China)	0.1
	23 Jul 2017 00:15	North Point	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Chek Chue	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Crocodile Hill	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Tai Tam	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Stanley	Hong Kong (China)	0.1
	23 Jul 2017 00:15	San Wan Ho Shau	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Yau Tong	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Rennie's Mill	Hong Kong (China)	0.1
	23 Jul 2017 00:15	A Kung Ngam	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Chai Wan	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Sau Mau Ping	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Hok Tsui Wan	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Yau Ma Po	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Sai Kung	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Chik Sha	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Hang Hau	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Tei Tong Tsui	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Tai Wan Tau	Hong Kong (China)	0.1
	23 Jul 2017 00:15	Long Ke	Hong Kong (China)	0.1
	22 Jul 2017 11:00	Lengzilin	China	0.1
	22 Jul 2017 22:00	Yong'an	China	0.1
	22 Jul 2017 22:00	Shankou	China	0.1
	22 Jul 2017 15:45	Chixi	China	0.1
	22 Jul 2017 21:45	Bailong	China	0.1
	22 Jul 2017 21:45	Beimu	China	0.1
	22 Jul 2017 11:00	Mui Lay	Vietnam	0.1
	23 Jul 2017 05:15	Hsin-chou	China	0.1
	22 Jul 2017 17:45	Dongshan	China	0.1
	22 Jul 2017 17:45	Hsi-pu	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.