Overall Red Tropical Cyclone alert for CHANTHU-21 in China, Philippines from 06 Sep 2021 06:00 UTC to 08 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 Red alert Tropical Cyclone for CHANTHU-21

in China, Philippines

08 Sep 2021 12 UTC

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to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone CHANTHU-21 can have a high humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Glide number:	TC-2021-000140-PHL
Exposed countries	China, Philippines
Exposed population	5 million in Category 1 or higher
Maximum wind speed	287 km/h
Maximum storm surge	0.7 m (12 Sep 12:00 UTC)
Vulnerability	Medium (China)
Landfall	between 12 Sep 2021 12:00 - 13 Sep 2021 12:00 in China

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	167 km/h	0.7 m	n.a.	1.5
Overall	287 km/h	0.7 m	n.a.	1.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

167 km/h Current Max.

Up to 3.6 million people in Category 1 strength or higher (see SSHS)

Impact Timeline

N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
1	06 Sep 2021 06:00	176	1.2 million	No people	Japan, China
2	06 Sep 2021 12:00	176	670 thousand	No people	Japan, China
3	06 Sep 2021 18:00	194	8.7 million	1.7 million	China
4	07 Sep 2021 00:00	194	12.2 million	3.5 million	China
5	07 Sep 2021 06:00	213	27.9 million	5.9 million	China
6	07 Sep 2021 12:00	241	32.3 million	50 thousand	China
7	07 Sep 2021 18:00	241	58 million	1.4 million	China
8	08 Sep 2021 00:00	176	44.1 million	1.9 million	China
9	08 Sep 2021 06:00	241	54.4 million	3.3 million	Philippines, China
10	08 Sep 2021 12:00	167	64.8 million	3.6 million	Philippines, China

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)	Countries
1	06 Sep 2021 06:00	Tropical depression	46	no people	no people	14, 138.3
2	06 Sep 2021 12:00	Tropical depression	56	no people	no people	14.7, 138.1
3	06 Sep 2021 18:00	Tropical storm	83	no people	no people	15.3, 137.4
4	07 Sep 2021 00:00	Tropical storm	93	no people	no people	15.6, 136.6
5	07 Sep 2021 06:00	Category 1	120	no people	no people	16.1, 135.7
6	07 Sep 2021 12:00	Category 1	130	no people	no people	16.3, 134.6
7	07 Sep 2021 18:00	Category 4	231	no people	no people	16.3, 133.5
8	08 Sep 2021 00:00	Category 4	222	no people	no people	16, 132.3
9	08 Sep 2021 06:00	Category 5	259	no people	no people	15.6, 131.3
10	08 Sep 2021 12:00	Category 4	250	no people	no people	15.5, 130.3
10	09 Sep 2021 00:00	Category 4	231	no people	no people	15.6, 128.2
10	09 Sep 2021 12:00	Category 4	222	no people	<1000 people	16.3, 126.3
10	10 Sep 2021 00:00	Category 4	231	no people	2.3 million people	17.5, 124.2
10	10 Sep 2021 12:00	Category 4	241	8900 people	7.7 million people	18.8, 122.5
10	11 Sep 2021 12:00	Category 4	222	no people	41.1 million people	21, 119.9
10	12 Sep 2021 12:00	Category 2	167	3.6 million people	60.5 million people	23.2, 118.2
10	13 Sep 2021 12:00	Tropical storm	111	no people	no people	25.5, 116.8	China

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
Philippines
China

Provinces

Region Province	Country
Cagayan Valley	Philippines
Fujian	China

Populated places

Name	Region Province	Country	City class	Population
Chihu	Fujian	China	City	-
Fotan	Fujian	China	City	-
Huxi	Fujian	China	City	-
Chengguanzhen	Fujian	China	City	-
Duxun	Fujian	China	City	-
Suian	Fujian	China	City	-
Shiliu	Fujian	China	City	-
Zhangzhou	Fujian	China	City	590000 people
Shancheng	Fujian	China	City	-
Yanshi	Fujian	China	City	-
Longyan	Fujian	China	City	120000 people
Zhixi	Fujian	China	City	-
Lianfeng	Fujian	China	City	-

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)
		17				0
Liangcheng		381				0

Ports

Name	LOCODE	Country
Calayan		Philippines
Zhangzhou		China

Dams

Dam Name	River	Year
Yangmei	Dengfan He	1977
Zumalin	Xugouxi	1976
Huanggang	Hongfangxi	1974
Guanyang	Huangtan He	1991
Wananxi	Wananxi	1995

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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.

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StormSurge

0.7 m

The maximum Storm surge height is 0.7m in Gongkou, China. This height is estimated for 12 Sep 2021 12:00 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 (165 locations). Calculation based on advisory number 10 of 08 Sep 2021 12:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	12 Sep 2021 12:00	Gongkou	China	0.7
	12 Sep 2021 12:00	Dongshan	China	0.7
	12 Sep 2021 12:00	Sidu	China	0.7
	12 Sep 2021 12:00	Ssu-tu	China	0.7
	12 Sep 2021 12:00	Gangkou	China	0.6
	12 Sep 2021 12:00	Guleitou	China	0.6
	12 Sep 2021 12:00	Chendai	China	0.6
	12 Sep 2021 12:00	Hsi-pu	China	0.6
	12 Sep 2021 12:00	Liu'ao	China	0.6
	12 Sep 2021 12:00	Chihu	China	0.5
	12 Sep 2021 12:00	Xucuo	China	0.5
	12 Sep 2021 12:00	Gulangyu	China	0.5
	12 Sep 2021 12:00	Daomei	China	0.5
	12 Sep 2021 12:00	Songyu	China	0.5
	12 Sep 2021 12:00	Fugong	China	0.5
	12 Sep 2021 12:00	Gangwei	China	0.5
	12 Sep 2021 12:00	Xiamen	China	0.5
	12 Sep 2021 12:00	Shentu	China	0.5
	12 Sep 2021 12:00	Huqiu	China	0.5
	12 Sep 2021 12:00	Wutian	China	0.5
	12 Sep 2021 12:00	Chen-hai	China	0.5
	12 Sep 2021 12:00	Zhenhai	China	0.5
	12 Sep 2021 12:00	Fotan	China	0.5
	12 Sep 2021 12:00	Dianqian	China	0.4
	12 Sep 2021 12:00	Hsia-mei	China	0.4
	12 Sep 2021 12:00	Yakou	China	0.4
	12 Sep 2021 12:00	Hecuo	China	0.4
	10 Sep 2021 20:00	Kaniwalan	Philippines	0.4
	10 Sep 2021 20:00	Nagsidel	Philippines	0.4
	12 Sep 2021 12:00	An-ting	Taiwan	0.4
	12 Sep 2021 12:00	Jiangtou	China	0.4
	12 Sep 2021 12:00	Chin-men	Taiwan	0.4
	12 Sep 2021 12:00	Aotou	China	0.4
	12 Sep 2021 12:00	Yongning	China	0.4
	12 Sep 2021 12:00	Shih-shih	China	0.4
	12 Sep 2021 12:00	Yang-chai	Taiwan	0.4
	12 Sep 2021 12:00	Liuwudian	China	0.4
	12 Sep 2021 12:00	Chin-men Tao	Taiwan	0.4
	12 Sep 2021 12:00	Zhangban	China	0.4
	12 Sep 2021 12:00	Dongyuan	China	0.4
	12 Sep 2021 12:00	Hsiang-chih	China	0.4
	12 Sep 2021 12:00	Xindian	China	0.4
	12 Sep 2021 12:00	Haicang	China	0.4
	12 Sep 2021 12:00	Chencheng	China	0.3
	12 Sep 2021 12:00	Ch'ing-hsu	Taiwan	0.3
	12 Sep 2021 12:00	Shihu	China	0.3
	12 Sep 2021 12:00	Lianhe	China	0.3
	12 Sep 2021 12:00	Weitou	China	0.3
	12 Sep 2021 12:00	Qian'an	China	0.3
	12 Sep 2021 12:00	Chongwu	China	0.3
	12 Sep 2021 12:00	Jiuzhen	China	0.3
	12 Sep 2021 12:00	Shijing	China	0.3
	12 Sep 2021 12:00	Chin-ching	China	0.3
	12 Sep 2021 12:00	Wangchuan	China	0.3
	12 Sep 2021 12:00	Dawu	China	0.3
	12 Sep 2021 12:00	Hushi	China	0.3
	12 Sep 2021 12:00	Fengwei	China	0.3
	12 Sep 2021 12:00	Hsiao-tso	China	0.3
	12 Sep 2021 12:00	Tung-shih	China	0.3
	12 Sep 2021 12:00	Zhongmen	China	0.3
	12 Sep 2021 12:00	P'u-hsi	China	0.3
	12 Sep 2021 12:00	Hanjiang	China	0.3
	12 Sep 2021 12:00	Chiang-k'ou	China	0.3
	10 Sep 2021 18:00	San Dionisio	Philippines	0.3
	12 Sep 2021 12:00	P'u-hsi-ch'eng	China	0.3
	12 Sep 2021 12:00	Chengguanzhen	China	0.3
	12 Sep 2021 12:00	Daitou	China	0.3
	12 Sep 2021 12:00	Gaoshan	China	0.3
	12 Sep 2021 12:00	Meizhou	China	0.3
	12 Sep 2021 12:00	Huanggang	China	0.2
	12 Sep 2021 12:00	Tangbian	China	0.2
	12 Sep 2021 12:00	Pinghai	China	0.2
	12 Sep 2021 12:00	Dongsha	China	0.2
	12 Sep 2021 12:00	Lingchuan	China	0.2
	12 Sep 2021 12:00	Fengting	China	0.2
	12 Sep 2021 12:00	Baisheng	China	0.2
	10 Sep 2021 20:00	Rarasi	Philippines	0.2
	12 Sep 2021 12:00	Shicheng	China	0.2
	12 Sep 2021 12:00	Beicuo	China	0.2
	12 Sep 2021 12:00	Nanri	China	0.2
	12 Sep 2021 12:00	San Shah	China	0.2
	12 Sep 2021 12:00	Chiang-t'ien	China	0.2
	12 Sep 2021 12:00	Fuye	China	0.2
	12 Sep 2021 12:00	Tung-tai	China	0.2
	12 Sep 2021 12:00	Guanban	China	0.2
	12 Sep 2021 12:00	Huanglong	China	0.2
	12 Sep 2021 12:00	Haikou	China	0.2
	12 Sep 2021 12:00	Longtian	China	0.2
	12 Sep 2021 12:00	Gangtou	China	0.2
	10 Sep 2021 19:00	Dadao	Philippines	0.2
	12 Sep 2021 12:00	Zhelin	China	0.2
	12 Sep 2021 07:00	Chung-p'ing	Taiwan	0.2
	12 Sep 2021 12:00	Wuhang	China	0.2
	12 Sep 2021 12:00	Songcheng	China	0.2
	12 Sep 2021 12:00	Sansha	China	0.2
	10 Sep 2021 12:00	Casambalangan	Philippines	0.2
	10 Sep 2021 12:00	San Vincente	Philippines	0.2
	12 Sep 2021 12:00	Guhuai	China	0.2
	12 Sep 2021 12:00	Langqi	China	0.2
	12 Sep 2021 12:00	Tantou	China	0.2
	12 Sep 2021 12:00	Chang-chiang	China	0.2
	12 Sep 2021 12:00	Yunlong	China	0.2
	12 Sep 2021 12:00	Chin-feng	China	0.2
	12 Sep 2021 12:00	Fengwo	China	0.2
	12 Sep 2021 12:00	Mabi	China	0.2
	12 Sep 2021 11:00	Feng-kuei-li	Taiwan	0.2
	12 Sep 2021 11:00	Ma-kung	Taiwan	0.2
	12 Sep 2021 12:00	Wuqu	China	0.2
	10 Sep 2021 17:00	Minabul	Philippines	0.2
	12 Sep 2021 12:00	Qingfeng	China	0.2
	12 Sep 2021 12:00	Ting-hai	China	0.2
	12 Sep 2021 12:00	Ta-ch'iu	China	0.2
	12 Sep 2021 12:00	Cao Yu	China	0.2
	12 Sep 2021 12:00	Xiahu	China	0.2
	10 Sep 2021 21:00	Banua	Philippines	0.1
	12 Sep 2021 12:00	Guanjing	China	0.1
	12 Sep 2021 12:00	Pingtan	China	0.1
	12 Sep 2021 12:00	Houtian	China	0.1
	12 Sep 2021 12:00	Luxia	China	0.1
	12 Sep 2021 09:00	An-ping	Taiwan	0.1
	12 Sep 2021 12:00	Huang-ch'i	China	0.1
	12 Sep 2021 12:00	Houzhai	China	0.1
	12 Sep 2021 12:00	Anhai	China	0.1
	12 Sep 2021 12:00	Tung-ch'ung	China	0.1
	12 Sep 2021 12:00	I-shan	China	0.1
	12 Sep 2021 12:00	Gexiang	China	0.1
	12 Sep 2021 12:00	Gongqiancun	China	0.1
	12 Sep 2021 11:00	Nanao	China	0.1
	12 Sep 2021 12:00	Chelim	China	0.1
	12 Sep 2021 12:00	Hua-hsu	Taiwan	0.1
	12 Sep 2021 12:00	Ch'ang-t'an-wo	Taiwan	0.1
	12 Sep 2021 12:00	Wai-an	Taiwan	0.1
	12 Sep 2021 07:00	Chiang-chun-ao	Taiwan	0.1
	12 Sep 2021 12:00	Ch'ang-an	Taiwan	0.1
	12 Sep 2021 12:00	P'eng-hu-erh-ts'un	Taiwan	0.1
	12 Sep 2021 12:00	Da'ao	China	0.1
	12 Sep 2021 12:00	Sha-fan-chieh	China	0.1
	12 Sep 2021 12:00	Jinxiang	China	0.1
	12 Sep 2021 12:00	Beilong	China	0.1
	12 Sep 2021 12:00	Chien-chiang	China	0.1
	12 Sep 2021 12:00	Xiaguan	China	0.1
	12 Sep 2021 07:00	Ch'eng-ch'ien	Taiwan	0.1
	12 Sep 2021 12:00	Lung-men	Taiwan	0.1
	12 Sep 2021 12:00	Hanjiang	China	0.1
	12 Sep 2021 12:00	Changchun	China	0.1
	12 Sep 2021 12:00	Yacheng	China	0.1
	12 Sep 2021 12:00	Yung-lung	Taiwan	0.1
	12 Sep 2021 12:00	Xinan	China	0.1
	10 Sep 2021 16:00	Cadagatan	Philippines	0.1
	10 Sep 2021 17:00	Sorongan	Philippines	0.1
	12 Sep 2021 11:00	Shenao	China	0.1
	12 Sep 2021 08:00	Raoping	China	0.1
	12 Sep 2021 12:00	Chu-kao-wan	Taiwan	0.1
	12 Sep 2021 07:00	Chu-mu-shui	Taiwan	0.1
	12 Sep 2021 12:00	Chi-pei	Taiwan	0.1
	12 Sep 2021 12:00	Xiabu	China	0.1
	12 Sep 2021 12:00	Zhuangyuanqiao	China	0.1
	12 Sep 2021 12:00	Longwan	China	0.1
	12 Sep 2021 12:00	Siqianjie	China	0.1
	12 Sep 2021 12:00	Xiaodoumen	China	0.1
	12 Sep 2021 12:00	Jiangtan	China	0.1
	10 Sep 2021 12:00	Buguey	Philippines	0.1
	10 Sep 2021 12:00	Gonzaga	Philippines	0.1
	12 Sep 2021 12:00	Chung-ho	Taiwan	0.1
	12 Sep 2021 12:00	Dituan	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.