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 12 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	91 km/h
Maximum storm surge	0.2 m (23 Jul 00:15 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	91 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 12:00 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	-	-	-	-	-	-	-
4	22 Jul 2017 12:00	91	-	-	-	-	-	-	-

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 12:00 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	-	-	-	-	-	-	-	-
4	22 Jul 2017 12:00	-	-	-	-	-	-	-	-

Impact estimation for the next 72h

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Taipang, China. This height is estimated for 23 Jul 2017 00:15 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 12:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	23 Jul 2017 00:15	Taipang	China	0.2
	23 Jul 2017 00:15	Shagang	China	0.2
	23 Jul 2017 00:15	Aotou	China	0.2
	23 Jul 2017 00:15	Luzui	China	0.2
	23 Jul 2017 00:15	Hsia-yung	China	0.2
	23 Jul 2017 00:15	Renshan	China	0.2
	22 Jul 2017 18:45	Qiandong	China	0.2
	22 Jul 2017 18:45	Jingzhou	China	0.2
	22 Jul 2017 18:45	Huanglong	China	0.2
	22 Jul 2017 18:45	Huanggang	China	0.2
	22 Jul 2017 18:45	Raoping	China	0.2
	22 Jul 2017 18:45	Zhelin	China	0.2
	22 Jul 2017 18:45	Chelim	China	0.2
	22 Jul 2017 18:45	Gongkou	China	0.2
	22 Jul 2017 18:30	Houzhai	China	0.2
	22 Jul 2017 18:30	Shenao	China	0.2
	22 Jul 2017 18:30	Nanao	China	0.2
	22 Jul 2017 22:45	Magong	China	0.2
	22 Jul 2017 22:45	Jizhongtuo	China	0.2
	22 Jul 2017 22:45	Shanwei	China	0.2
	22 Jul 2017 22:45	Jiesheng	China	0.2
	22 Jul 2017 22:45	Tianqian	China	0.2
	22 Jul 2017 22:45	Zhelang	China	0.2
	22 Jul 2017 12:00	Rach Gia	Vietnam	0.2
	22 Jul 2017 12:00	Kien Thanh	Vietnam	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 16:00	Donghong	China	0.2
	22 Jul 2017 16:00	Jinghai	China	0.2
	22 Jul 2017 16:00	Haimen	China	0.2
	23 Jul 2017 00:15	Pinghai	China	0.2
	22 Jul 2017 21:45	Jieshi	China	0.2
	22 Jul 2017 17:15	Hudong	China	0.2
	22 Jul 2017 17:15	Jiazi	China	0.2
	22 Jul 2017 17:15	Changqingwei	China	0.2
	22 Jul 2017 23:45	Cheung Kang	Hong Kong (China)	0.2
	22 Jul 2017 23:45	Imtin	China	0.2
	22 Jul 2017 23:45	Cheung Wo	Hong Kong (China)	0.2
	22 Jul 2017 23:45	Pak Sha Au	Hong Kong (China)	0.2
	22 Jul 2017 23:45	Khitschhung	China	0.2
	22 Jul 2017 23:45	Dapeng	China	0.2
	22 Jul 2017 17:15	Shenquan	China	0.2
	22 Jul 2017 23:00	Gangkou	China	0.2
	22 Jul 2017 23:00	Houmen	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 16:15	Ch'ao-yang-hsien	China	0.2
	22 Jul 2017 16:15	Dahao	China	0.2
	22 Jul 2017 16:15	Aotou	China	0.2
	22 Jul 2017 16:15	Daitou	China	0.2
	22 Jul 2017 16:15	Guangao	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 21:00	Chiang-t'ien	China	0.2
	22 Jul 2017 21:00	Guanjing	China	0.2
	22 Jul 2017 21:00	Qingfeng	China	0.2
	22 Jul 2017 21:00	Houtian	China	0.2
	22 Jul 2017 17:00	Siwei	China	0.2
	23 Jul 2017 02:00	Thai Duong Thuong	Vietnam	0.2
	23 Jul 2017 02:00	Thon Thai Duong Ha	Vietnam	0.2
	23 Jul 2017 02:00	Thon My Khanh	Vietnam	0.2
	22 Jul 2017 23:00	Fanhe	China	0.1
	22 Jul 2017 21:00	Beicuo	China	0.1
	22 Jul 2017 21:00	Pingtan	China	0.1
	22 Jul 2017 20:45	Chang-chiang	China	0.1
	22 Jul 2017 17:15	Gangkou	China	0.1
	22 Jul 2017 17:15	Hsia-mei	China	0.1
	22 Jul 2017 17:15	Jiuzhen	China	0.1
	22 Jul 2017 17:15	Liu'ao	China	0.1
	22 Jul 2017 17:15	Shentu	China	0.1
	22 Jul 2017 17:15	Chihu	China	0.1
	22 Jul 2017 15:30	Nayan	China	0.1
	22 Jul 2017 20:00	Baisheng	China	0.1
	22 Jul 2017 20:00	Ch'ang-t'an-wo	Taiwan	0.1
	22 Jul 2017 17:30	Gongqiancun	China	0.1
	22 Jul 2017 17:30	Chencheng	China	0.1
	22 Jul 2017 23:30	Long Ke	Hong Kong (China)	0.1
	22 Jul 2017 20:15	Chin-feng	China	0.1
	22 Jul 2017 20:15	Wuhang	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 20:30	Tantou	China	0.1
	22 Jul 2017 20:30	Yunlong	China	0.1
	22 Jul 2017 17:45	Tai Po	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Won Hang	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Tain Sha Tsui	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Central	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Tai Po Industrial Estate	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Kowloon	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Wan Chai	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Dabu	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Tsz Wa Chan	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Chung Hom Kok	Hong Kong (China)	0.1
	22 Jul 2017 17:45	North Point	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Chek Chue	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Crocodile Hill	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Tai Tam	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Stanley	Hong Kong (China)	0.1
	22 Jul 2017 17:45	San Wan Ho Shau	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Yau Tong	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Rennie's Mill	Hong Kong (China)	0.1
	22 Jul 2017 17:45	A Kung Ngam	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Chai Wan	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Sau Mau Ping	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Hok Tsui Wan	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Yau Ma Po	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Sai Kung	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Chik Sha	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Hang Hau	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Tei Tong Tsui	Hong Kong (China)	0.1
	22 Jul 2017 17:45	Tai Wan Tau	Hong Kong (China)	0.1
	22 Jul 2017 12:00	Xom Ba Tra	Vietnam	0.1
	22 Jul 2017 12:00	Ap Giong Ke	Vietnam	0.1
	22 Jul 2017 17:45	Dongshan	China	0.1
	22 Jul 2017 17:45	Hsi-pu	China	0.1
	22 Jul 2017 19:45	Hushi	China	0.1
	22 Jul 2017 19:45	Hanjiang	China	0.1
	22 Jul 2017 19:45	Chiang-k'ou	China	0.1
	22 Jul 2017 19:45	Daitou	China	0.1
	22 Jul 2017 19:45	Tangbian	China	0.1
	22 Jul 2017 19:45	Shicheng	China	0.1
	22 Jul 2017 17:30	Hsing-ch'en	China	0.1
	22 Jul 2017 17:30	Chendai	China	0.1
	22 Jul 2017 17:30	Huqiu	China	0.1
	22 Jul 2017 17:30	Wutian	China	0.1
	22 Jul 2017 17:30	Chengguanzhen	China	0.1
	22 Jul 2017 17:30	Guleitou	China	0.1
	22 Jul 2017 12:00	Ap Cau Thang	Vietnam	0.1
	22 Jul 2017 21:30	Yingluo	China	0.1
	22 Jul 2017 21:30	Caotan	China	0.1
	22 Jul 2017 21:30	Longtousha	China	0.1
	22 Jul 2017 21:30	Yingzai	China	0.1
	22 Jul 2017 12:00	Shuidong	China	0.1
	22 Jul 2017 12:00	Dianbai	China	0.1
	23 Jul 2017 11:30	Linwang	China	0.1
	23 Jul 2017 11:30	Tang Kiu	China	0.1
	23 Jul 2017 11:30	Tengqiao	China	0.1
	23 Jul 2017 11:30	Yingzhou	China	0.1
	22 Jul 2017 21:30	Yong'an	China	0.1
	22 Jul 2017 21:30	Shankou	China	0.1
	23 Jul 2017 10:15	Chung-yuan	China	0.1
	23 Jul 2017 10:15	Hele	China	0.1
	23 Jul 2017 10:15	Boao	China	0.1
	22 Jul 2017 15:45	Chixi	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
	23 Jul 2017 12:00	Baipu	China	0.1
	22 Jul 2017 19:00	Fugong	China	0.1
	22 Jul 2017 19:00	Haicang	China	0.1
	22 Jul 2017 19:00	Gangwei	China	0.1
	22 Jul 2017 19:00	Songyu	China	0.1
	22 Jul 2017 19:00	Hsing-lin	China	0.1
	22 Jul 2017 19:00	Xucuo	China	0.1
	22 Jul 2017 19:00	Gulangyu	China	0.1
	22 Jul 2017 19:00	Xiamen	China	0.1
	22 Jul 2017 19:00	Chen-hai	China	0.1
	22 Jul 2017 19:00	Daomei	China	0.1
	22 Jul 2017 19:00	Dianqian	China	0.1
	22 Jul 2017 19:00	Jiangtou	China	0.1
	22 Jul 2017 19:00	Zhenhai	China	0.1
	22 Jul 2017 19:00	Hecuo	China	0.1
	22 Jul 2017 19:00	Liuwudian	China	0.1
	23 Jul 2017 11:30	Hsin-ts'un	China	0.1
	23 Jul 2017 11:30	Sancai	China	0.1
	23 Jul 2017 03:15	Yandun	China	0.1
	23 Jul 2017 03:15	Huiwen	China	0.1
	23 Jul 2017 11:30	Dong'ao	China	0.1
	23 Jul 2017 11:30	Lingcheng	China	0.1
	23 Jul 2017 12:00	Lengzilin	China	0.1
	23 Jul 2017 06:15	Da Nang	Vietnam	0.1
	23 Jul 2017 06:15	Xom Da Me	Vietnam	0.1
	23 Jul 2017 06:15	Mui Da Nang	Vietnam	0.1
	23 Jul 2017 06:15	Hoi An	Vietnam	0.1
	22 Jul 2017 21:30	Bailong	China	0.1
	22 Jul 2017 21:30	Beimu	China	0.1
	23 Jul 2017 11:45	Santouzui	China	0.1
	23 Jul 2017 11:45	Hsi-t'ou	China	0.1
	23 Jul 2017 12:00	Rudong	China	0.1
	23 Jul 2017 12:00	Shangyang	China	0.1
	23 Jul 2017 12:00	Ngau Kwu Long	Hong Kong (China)	0.1
	23 Jul 2017 12:00	Ham Tin	Hong Kong (China)	0.1
	23 Jul 2017 12:00	Sz Pak	Hong Kong (China)	0.1
	23 Jul 2017 12:00	Lo Tik Wan	Hong Kong (China)	0.1
	23 Jul 2017 12:00	Lo So Shing	Hong Kong (China)	0.1
	23 Jul 2017 12:00	Pok Fu Lam	Hong Kong (China)	0.1
	23 Jul 2017 12:00	Wa Fu Estate	Hong Kong (China)	0.1
	23 Jul 2017 12:00	Kennedy Town	Hong Kong (China)	0.1
	23 Jul 2017 12:00	Aberdeen	Hong Kong (China)	0.1
	23 Jul 2017 05:15	Hsin-chou	China	0.1
	23 Jul 2017 06:15	Diancheng	China	0.1
	22 Jul 2017 21:30	Cao Yu	China	0.1
	23 Jul 2017 09:45	Boshegang	China	0.1
	23 Jul 2017 09:45	Longtang	China	0.1
	23 Jul 2017 09:45	Qianshan	China	0.1
	23 Jul 2017 11:15	Chen Lan	China	0.1
	23 Jul 2017 11:15	Qinglan	China	0.1
	22 Jul 2017 21:00	Nanri	China	0.1
	22 Jul 2017 21:00	Gaoshan	China	0.1
	22 Jul 2017 21:00	Fuye	China	0.1
	23 Jul 2017 06:30	Magang	China	0.1
	23 Jul 2017 08:15	Cat Son Phuong	Vietnam	0.1
	23 Jul 2017 08:15	Giem Ha Trung	Vietnam	0.1
	23 Jul 2017 08:15	Dong Ha	Vietnam	0.1
	23 Jul 2017 08:15	Thon My Thuy	Vietnam	0.1
	23 Jul 2017 04:30	Bebeladan	Philippines	0.1
	23 Jul 2017 04:30	El Nido	Philippines	0.1
	23 Jul 2017 04:30	Camago	Philippines	0.1
	23 Jul 2017 04:30	Manlalec	Philippines	0.1
	23 Jul 2017 04:30	Barotuan	Philippines	0.1
	23 Jul 2017 04:30	Oton	Philippines	0.1
	23 Jul 2017 04:30	Palalong	Philippines	0.1
	23 Jul 2017 04:30	Sibaltan	Philippines	0.1
	23 Jul 2017 04:30	Maytiguid	Philippines	0.1
	23 Jul 2017 04:30	Batas	Philippines	0.1
	23 Jul 2017 04:30	Pinamalayan	Philippines	0.1
	22 Jul 2017 22:00	Ta-ch'iu	China	0.1
	23 Jul 2017 12:00	Sanya	China	0.1
	23 Jul 2017 12:00	Anyou	China	0.1
	23 Jul 2017 12:00	Yulin	China	0.1
	23 Jul 2017 12:00	Tiandu	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.