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

in China, Philippines

08 Sep 2021 06 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	0.6 m (10 Sep 16:00 UTC)
Vulnerability	Medium (China)
Landfall	between 12 Sep 2021 06:00 - 13 Sep 2021 06:00 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	241 km/h	0.6 m	n.a.	1.5
Overall	287 km/h	0.6 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

241 km/h Current Max.

Up to 3.3 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

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
9	08 Sep 2021 18:00	Category 4	241	no people	no people	15.4, 129.4
9	09 Sep 2021 06:00	Category 4	222	no people	no people	15.9, 127.2
9	09 Sep 2021 18:00	Category 4	222	4100 people	2.9 million people	16.9, 124.9
9	10 Sep 2021 06:00	Category 4	241	55000 people	3.8 million people	18.3, 122.7
9	11 Sep 2021 06:00	Category 4	231	no people	4.9 million people	20.4, 119.9
9	12 Sep 2021 06:00	Category 2	176	3.2 million people	49.9 million people	22, 118.4
9	13 Sep 2021 06:00	Category 1	130	no people	no people	24.6, 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
Guangdong	China

Populated places

Name	Region Province	Country	City class	Population
Chengguanzhen	Fujian	China	City	-
Duxun	Fujian	China	City	-
Shenao	Guangdong	China	City	-
Zhaoan	Guangdong	China	City	-
Zhelin	Guangdong	China	City	-
Xiahe	Fujian	China	City	-
Huanggang	Guangdong	China	City	220000 people
Daxi	Fujian	China	City	-
Jiufeng	Fujian	China	City	-
Sanjao	Guangdong	China	City	-
Chayang	Guangdong	China	City	-
Fengcheng	Fujian	China	City	-

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Ports

Name	LOCODE	Country
Port San Vicente		Philippines
Calayan		Philippines

Dams

Dam Name	River	Year
Zumalin	Xugouxi	1976
Dutang	Baiyinxi	1959
Fengtou	Zhang Jiang	1977
Tangxi	Huanggang He	1962
Mianhuatan	Trib. Ting Jiang	n/a

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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

0.6 m

The maximum Storm surge height is 0.6m in Dadao, Philippines. This height is estimated for 10 Sep 2021 16:00 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 (125 locations). Calculation based on advisory number 9 of 08 Sep 2021 06:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	10 Sep 2021 16:00	Dadao	Philippines	0.6
	10 Sep 2021 13:00	Cadagatan	Philippines	0.6
	10 Sep 2021 18:00	Kaniwalan	Philippines	0.6
	10 Sep 2021 13:00	Minabul	Philippines	0.6
	10 Sep 2021 18:00	Banua	Philippines	0.4
	10 Sep 2021 10:00	San Vincente	Philippines	0.4
	10 Sep 2021 10:00	Bawa	Philippines	0.4
	10 Sep 2021 10:00	Cabiraoan	Philippines	0.4
	10 Sep 2021 10:00	Casambalangan	Philippines	0.4
	10 Sep 2021 18:00	Rarasi	Philippines	0.3
	10 Sep 2021 10:00	Gonzaga	Philippines	0.3
	10 Sep 2021 16:00	Nagsidel	Philippines	0.3
	10 Sep 2021 15:00	San Dionisio	Philippines	0.2
	12 Sep 2021 06:00	Guleitou	China	0.2
	12 Sep 2021 06:00	Gangkou	China	0.2
	12 Sep 2021 06:00	Liu'ao	China	0.2
	10 Sep 2021 10:00	Buguey	Philippines	0.2
	12 Sep 2021 06:00	Chendai	China	0.2
	12 Sep 2021 06:00	Hsi-pu	China	0.2
	10 Sep 2021 17:00	Visita	Philippines	0.2
	12 Sep 2021 06:00	Huqiu	China	0.2
	12 Sep 2021 06:00	Wutian	China	0.2
	12 Sep 2021 06:00	Chihu	China	0.2
	12 Sep 2021 06:00	Shentu	China	0.2
	12 Sep 2021 06:00	Xucuo	China	0.2
	12 Sep 2021 06:00	Gulangyu	China	0.2
	10 Sep 2021 08:00	Balza	Philippines	0.2
	12 Sep 2021 06:00	Gongqiancun	China	0.2
	12 Sep 2021 06:00	Chencheng	China	0.2
	12 Sep 2021 06:00	Daomei	China	0.2
	12 Sep 2021 06:00	Songyu	China	0.2
	12 Sep 2021 06:00	Xiamen	China	0.2
	12 Sep 2021 06:00	Dongyuan	China	0.2
	12 Sep 2021 06:00	Zhangban	China	0.2
	12 Sep 2021 06:00	Dongsha	China	0.2
	12 Sep 2021 06:00	Lingchuan	China	0.2
	10 Sep 2021 16:00	Poso	Philippines	0.2
	12 Sep 2021 06:00	Hsia-mei	China	0.2
	12 Sep 2021 06:00	Fotan	China	0.2
	12 Sep 2021 06:00	Chen-hai	China	0.2
	12 Sep 2021 06:00	Zhenhai	China	0.2
	12 Sep 2021 06:00	Zhelin	China	0.2
	12 Sep 2021 06:00	Chengguanzhen	China	0.2
	12 Sep 2021 06:00	Fugong	China	0.2
	12 Sep 2021 06:00	Gangwei	China	0.2
	12 Sep 2021 06:00	Guangao	China	0.2
	12 Sep 2021 06:00	Yongning	China	0.2
	12 Sep 2021 06:00	Shih-shih	China	0.2
	12 Sep 2021 06:00	Hsiang-chih	China	0.2
	12 Sep 2021 06:00	Dianqian	China	0.2
	10 Sep 2021 10:00	Punta	Philippines	0.1
	10 Sep 2021 12:00	Alilinu	Philippines	0.1
	10 Sep 2021 16:00	Sorongan	Philippines	0.1
	12 Sep 2021 06:00	Raoping	China	0.1
	12 Sep 2021 06:00	Chelim	China	0.1
	12 Sep 2021 06:00	Gongkou	China	0.1
	12 Sep 2021 06:00	Dongshan	China	0.1
	12 Sep 2021 06:00	Hecuo	China	0.1
	12 Sep 2021 06:00	Tung-shih	China	0.1
	12 Sep 2021 06:00	Yakou	China	0.1
	12 Sep 2021 06:00	Shihu	China	0.1
	12 Sep 2021 06:00	Qian'an	China	0.1
	12 Sep 2021 06:00	Chongwu	China	0.1
	12 Sep 2021 06:00	Hushi	China	0.1
	10 Sep 2021 12:00	Cabuluan	Philippines	0.1
	12 Sep 2021 06:00	Houzhai	China	0.1
	12 Sep 2021 06:00	Jiuzhen	China	0.1
	12 Sep 2021 06:00	Huanggang	China	0.1
	12 Sep 2021 06:00	Jiangtou	China	0.1
	12 Sep 2021 06:00	An-ting	Taiwan	0.1
	12 Sep 2021 06:00	Chin-men	Taiwan	0.1
	12 Sep 2021 06:00	Chin-men Tao	Taiwan	0.1
	12 Sep 2021 06:00	Yang-chai	Taiwan	0.1
	12 Sep 2021 06:00	Weitou	China	0.1
	12 Sep 2021 06:00	Aotou	China	0.1
	12 Sep 2021 06:00	Wangchuan	China	0.1
	12 Sep 2021 06:00	Dawu	China	0.1
	12 Sep 2021 06:00	Fengwei	China	0.1
	12 Sep 2021 06:00	Daitou	China	0.1
	12 Sep 2021 06:00	Jinghai	China	0.1
	12 Sep 2021 06:00	Hanjiang	China	0.1
	12 Sep 2021 06:00	Chiang-k'ou	China	0.1
	10 Sep 2021 12:00	Catuguran	Philippines	0.1
	10 Sep 2021 10:00	Aparri	Philippines	0.1
	10 Sep 2021 17:00	Banoa	Philippines	0.1
	12 Sep 2021 06:00	Sidu	China	0.1
	12 Sep 2021 06:00	Ssu-tu	China	0.1
	12 Sep 2021 06:00	Ch'ing-hsu	Taiwan	0.1
	12 Sep 2021 06:00	Chin-ching	China	0.1
	12 Sep 2021 06:00	Liuwudian	China	0.1
	12 Sep 2021 06:00	Hsiao-tso	China	0.1
	12 Sep 2021 06:00	Zhongmen	China	0.1
	12 Sep 2021 06:00	P'u-hsi	China	0.1
	12 Sep 2021 06:00	Huanglong	China	0.1
	12 Sep 2021 06:00	Baisheng	China	0.1
	12 Sep 2021 06:00	Shenao	China	0.1
	12 Sep 2021 06:00	Nanao	China	0.1
	12 Sep 2021 06:00	Haimen	China	0.1
	12 Sep 2021 06:00	Shantou	China	0.1
	12 Sep 2021 06:00	Dahao	China	0.1
	12 Sep 2021 06:00	Aotou	China	0.1
	12 Sep 2021 06:00	Daitou	China	0.1
	12 Sep 2021 06:00	Siwei	China	0.1
	12 Sep 2021 06:00	Lianhe	China	0.1
	12 Sep 2021 06:00	P'u-hsi-ch'eng	China	0.1
	12 Sep 2021 06:00	Meizhou	China	0.1
	12 Sep 2021 06:00	Xindian	China	0.1
	12 Sep 2021 06:00	Chiang-chun-ao	Taiwan	0.1
	12 Sep 2021 06:00	Cao Yu	China	0.1
	12 Sep 2021 06:00	Beicuo	China	0.1
	12 Sep 2021 06:00	Chiang-t'ien	China	0.1
	12 Sep 2021 06:00	Jingzhou	China	0.1
	10 Sep 2021 10:00	Linao	Philippines	0.1
	10 Sep 2021 10:00	Bisagu	Philippines	0.1
	10 Sep 2021 14:00	Naguilian	Philippines	0.1
	10 Sep 2021 14:00	Abulug	Philippines	0.1
	12 Sep 2021 06:00	Shijing	China	0.1
	12 Sep 2021 06:00	Pinghai	China	0.1
	12 Sep 2021 06:00	Donghong	China	0.1
	12 Sep 2021 06:00	Nanri	China	0.1
	12 Sep 2021 06:00	Wuhang	China	0.1
	12 Sep 2021 06:00	Tangbian	China	0.1
	12 Sep 2021 06:00	Fuye	China	0.1
	12 Sep 2021 06:00	Tung-tai	China	0.1
	12 Sep 2021 06:00	Guanban	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.