Overall Orange Tropical Cyclone alert for CEMPAKA-21 in China from 18 Jul 2021 18:00 UTC to 19 Jul 2021 00:00 UTC

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

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

Meteorological source	GDACS
Glide number:	TC-2021-000094-CHN
Exposed countries	China
Exposed population	2.2 million in Category 1 or higher
Maximum wind speed	139 km/h
Maximum storm surge	n.a.
Vulnerability	Medium (China)
Landfall	between 19 Jul 2021 12:00 - 20 Jul 2021 00:00 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	111 km/h	n.a.	n.a.	0.5
Overall	139 km/h	0.0 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

111 km/h Current Max.

Up to 7.1 million people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Alert	N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
	2	18 Jul 2021 18:00	102	12.4 million	No people	China
	3	19 Jul 2021 00:00	111	7.1 million	No people	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
2	18 Jul 2021 18:00	Tropical storm	65	no people	no people	20.8, 113.2
3	19 Jul 2021 00:00	Tropical storm	83	no people	210000 people	20.9, 113.1
3	19 Jul 2021 12:00	Tropical storm	102	no people	1.6 million people	21.3, 112.7
3	20 Jul 2021 00:00	Tropical storm	111	no people	2.6 million people	21.6, 112.4	China
3	20 Jul 2021 12:00	Tropical storm	93	no people	2.6 million people	21.9, 111.8	China
3	21 Jul 2021 00:00	Tropical storm	65	no people	4.1 million people	21.9, 111.2	China
3	22 Jul 2021 00:00	Tropical depression	46	no people	no people	21.6, 110.2	China
3	23 Jul 2021 00:00	Tropical depression	46	no people	940000 people	21, 110	China
3	24 Jul 2021 00:00	Tropical storm	65	no people	no people	20.3, 111.5

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

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Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country
China

Provinces

Region Province	Country
Guangdong	China
Hainan	China

Populated places

Name	Region Province	Country	City class	Population
Jiangcheng	Guangdong	China	City	-
Encheng	Guangdong	China	City	110000 people
Chuncheng	Guangdong	China	City	150000 people
Maoming	Guangdong	China	City	470000 people
Gaozhou	Guangdong	China	City	160000 people

Critical infrastructure

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

Ports

Name	LOCODE	Country
Yangjiang	CNYJI	China

Dams

Dam Name	River	Year
Dalongdong	Dalongdong He	1959
Donghu	Nalong He	1961
Huangsha	Yanghua Jiang	1960
Hedi	Jiuzhou Jiang	1961

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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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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.