Overall Green Tropical Cyclone alert for TWELVE-21 Off-shore from 02 Aug 2021 06:00 UTC to 06 Aug 2021 00:00 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 TWELVE-21

Off-shore

04 Aug 2021 06 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

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

Meteorological source	GFS
Exposed countries	Japan
Exposed population	No people in Category 1 or higher
Maximum wind speed	72 km/h
Maximum storm surge	0.5 m (04 Aug 11:00 UTC)
Vulnerability	--

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
GFS Current	72 km/h	0.5 m	138 mm	0.5
GFS Overall	104 km/h	0.8 m	554 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

104 km/h

Up to 20 thousand can be affected by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

Estimations based on the bulletin of 04 Aug 2021 06:00 UTC

Category	Country	Population
Tropical Storm	Japan	16,287

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	Countries
1	02 Aug 2021 06:00	54	-	-	-	-	-	-	-
2	02 Aug 2021 12:00	58	-	-	-	-	-	-	-
3	02 Aug 2021 18:00	65	-	-	-	-	-	-	-
4	03 Aug 2021 00:00	61	-	-	-	-	-	-	-
5	03 Aug 2021 06:00	68	-	-	-	-	-	-	-
6	03 Aug 2021 12:00	72	-	-	-	-	-	-	-
7	03 Aug 2021 18:00	76	-	-	-	-	-	-	-
8	04 Aug 2021 00:00	65	-	-	-	-	-	-	-
9	04 Aug 2021 06:00	79	-		-	-	-	-	-	Japan

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 04 Aug 2021 06:00 UTC

Level	Country	Population
100-250 mm	Japan	2,123
50-100 mm	Japan	11,786

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	Countries
1	02 Aug 2021 06:00	22	-	-	-	-	-	-	-
2	02 Aug 2021 12:00	58	-	-	-	-	-	-	-
3	02 Aug 2021 18:00	113	260 thousand			-	-	-	-	Japan
4	03 Aug 2021 00:00	79	-	-	-	-	-	-	-
5	03 Aug 2021 06:00	103	-	-	-	-	-	-	-
6	03 Aug 2021 12:00	181	-	-	-	-	-	-	-
7	03 Aug 2021 18:00	197	-	-	-	-	-	-	-
8	04 Aug 2021 00:00	149	-	-	-	-	-	-	-
9	04 Aug 2021 06:00	322	2 thousand			-	-	-	-	Japan

Impact estimation for the next 72h

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StormSurge

0.5 m

The maximum Storm surge height is 0.5m in Changsu, Republic of Korea. This height is estimated for 04 Aug 2021 11:00 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 04 Aug 2021 06:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	04 Aug 2021 11:00	Changsu	Republic of Korea	0.5
	04 Aug 2021 11:00	Aya-ri	Republic of Korea	0.5
	04 Aug 2021 11:00	Ch'ongam	Republic of Korea	0.5
	04 Aug 2021 11:00	Chamdu	Republic of Korea	0.4
	04 Aug 2021 11:00	Chinch'ang	Republic of Korea	0.4
	04 Aug 2021 11:00	Changjong-ni	Republic of Korea	0.3
	04 Aug 2021 11:00	Chijung-ni	Republic of Korea	0.3
	04 Aug 2021 07:30	Hangch'on	Republic of Korea	0.3
	04 Aug 2021 07:30	Namhae	Republic of Korea	0.3
	04 Aug 2021 07:30	Gonyang	Republic of Korea	0.3
	04 Aug 2021 07:30	Pit'o	Republic of Korea	0.3
	04 Aug 2021 07:30	Samcheongpo	Republic of Korea	0.3
	04 Aug 2021 07:00	Sacheon	Republic of Korea	0.2
	04 Aug 2021 11:00	Chinsan-ni	Republic of Korea	0.2
	04 Aug 2021 11:00	Anp'o	Republic of Korea	0.1
	04 Aug 2021 11:00	Chungbang	Republic of Korea	0.1
	04 Aug 2021 11:00	Chabong	Republic of Korea	0.1
	04 Aug 2021 11:00	Yeosu	Republic of Korea	0.1
	04 Aug 2021 11:00	Chukp'o	Republic of Korea	0.1
	04 Aug 2021 11:45	Ashiya	Japan	0.1
	04 Aug 2021 11:45	Kita-kyushu	Japan	0.1
	04 Aug 2021 11:45	Yoshimoura	Japan	0.1
	04 Aug 2021 11:45	Murotsuura	Japan	0.1
	04 Aug 2021 11:45	Yasuoka	Japan	0.1
	04 Aug 2021 11:45	Kanda	Japan	0.1
	04 Aug 2021 11:45	Shimonoseki	Japan	0.1
	04 Aug 2021 11:45	Tsunemi	Japan	0.1
	04 Aug 2021 11:15	Chofu	Japan	0.1
	04 Aug 2021 11:15	Moji	Japan	0.1
	04 Aug 2021 11:15	Kagawa	Japan	0.1
	04 Aug 2021 07:15	Aka	Japan	0.1
	04 Aug 2021 07:15	Zamami	Japan	0.1
	04 Aug 2021 07:15	Awaren	Japan	0.1
	04 Aug 2021 07:15	Tokashiku	Japan	0.1
	04 Aug 2021 11:30	Ishimine	Japan	0.1
	04 Aug 2021 11:30	Kadena	Japan	0.1
	04 Aug 2021 11:30	Atsuta	Japan	0.1
	04 Aug 2021 11:30	Ishikawa	Japan	0.1
	04 Aug 2021 11:30	Henna	Japan	0.1
	04 Aug 2021 11:30	Kin	Japan	0.1
	04 Aug 2021 11:30	Ichi	Japan	0.1
	04 Aug 2021 10:15	Aech'o-ri	Republic of Korea	0.1
	04 Aug 2021 08:15	Nakao	Japan	0.1
	04 Aug 2021 08:15	Obo	Japan	0.1
	04 Aug 2021 08:15	Ogimi	Japan	0.1
	04 Aug 2021 08:15	Kaata	Japan	0.1
	04 Aug 2021 08:15	Hedo	Japan	0.1
	04 Aug 2021 08:15	Ada	Japan	0.1
	04 Aug 2021 07:30	Chifuwa	Japan	0.1
	04 Aug 2021 07:30	Naha	Japan	0.1
	04 Aug 2021 07:00	Itoman	Japan	0.1
	04 Aug 2021 07:00	Nakaza	Japan	0.1
	04 Aug 2021 07:00	Fusozaki	Japan	0.1
	04 Aug 2021 07:45	Shikimi	Japan	0.1
	04 Aug 2021 07:45	Fukahori	Japan	0.1
	04 Aug 2021 07:45	Mieda	Japan	0.1
	04 Aug 2021 07:45	Nagasaki	Japan	0.1
	04 Aug 2021 07:45	Mogi	Japan	0.1
	04 Aug 2021 07:45	Omura	Japan	0.1
	04 Aug 2021 07:45	Hizen Nagana	Japan	0.1
	04 Aug 2021 07:45	Yuki	Japan	0.1
	04 Aug 2021 08:00	Yue	Japan	0.1
	04 Aug 2021 08:00	Isahaya	Japan	0.1
	04 Aug 2021 08:00	Kuchinotsu	Japan	0.1
	04 Aug 2021 08:00	Hakuto	Japan	0.1
	04 Aug 2021 08:00	Chijiwa	Japan	0.1
	04 Aug 2021 08:00	Obama	Japan	0.1
	04 Aug 2021 08:00	Urada	Japan	0.1
	04 Aug 2021 08:00	Oe	Japan	0.1
	04 Aug 2021 08:30	Kita	Japan	0.1
	04 Aug 2021 08:30	Tomioka	Japan	0.1
	04 Aug 2021 08:30	Futae	Japan	0.1
	04 Aug 2021 08:30	Goryo	Japan	0.1
	04 Aug 2021 08:30	Hondo	Japan	0.1
	04 Aug 2021 08:30	Kawachi	Japan	0.1
	04 Aug 2021 08:30	Arie	Japan	0.1
	04 Aug 2021 06:00	Cholge	Republic of Korea	0.1
	04 Aug 2021 08:00	Kojiro	Japan	0.1
	04 Aug 2021 08:00	Funatsu	Japan	0.1
	04 Aug 2021 08:00	Tairamachi	Japan	0.1
	04 Aug 2021 06:15	Chop'o	Republic of Korea	0.1
	04 Aug 2021 06:15	Goseong	Republic of Korea	0.1
	04 Aug 2021 06:15	Chamgae	Republic of Korea	0.1
	04 Aug 2021 07:45	Tonaki	Japan	0.1
	04 Aug 2021 07:45	Aguni	Japan	0.1
	04 Aug 2021 07:45	Hama	Japan	0.1
	04 Aug 2021 10:30	Kok'ori	Republic of Korea	0.1
	04 Aug 2021 07:15	Oura	Japan	0.1
	04 Aug 2021 07:15	Kaseda	Japan	0.1
	04 Aug 2021 07:15	Hioki	Japan	0.1
	04 Aug 2021 07:15	Izaku	Japan	0.1
	04 Aug 2021 07:15	Yoshitoshi	Japan	0.1
	04 Aug 2021 08:15	Nomo	Japan	0.1
	04 Aug 2021 08:15	Wakimisaki	Japan	0.1
	04 Aug 2021 07:30	Izena	Japan	0.1
	04 Aug 2021 07:45	Toguchi	Japan	0.1
	04 Aug 2021 07:45	Nago	Japan	0.1
	04 Aug 2021 07:15	Teima	Japan	0.1
	04 Aug 2021 08:30	Tashiro	Japan	0.1
	04 Aug 2021 08:30	Kakinoura	Japan	0.1
	04 Aug 2021 08:30	Nakiri	Japan	0.1
	04 Aug 2021 08:30	Emukae	Japan	0.1
	04 Aug 2021 08:30	Tokuman	Japan	0.1
	04 Aug 2021 08:30	Nakasatookamen	Japan	0.1
	04 Aug 2021 08:30	Sasebo	Japan	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.