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 00 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	65 km/h
Maximum storm surge	0.7 m (04 Aug 05:15 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	65 km/h	0.7 m	149 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 3 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 00:00 UTC

Category	Country	Population
Tropical Storm	Japan	3,411

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	83	-		-	-	-	-	-	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 00:00 UTC

Level	Country	Population
100-250 mm	Japan	273
50-100 mm	Japan	2,208

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	320	Few people			-	-	-	-	Japan

Impact estimation for the next 72h

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StormSurge

0.7 m

The maximum Storm surge height is 0.7m in Changsu, Republic of Korea. This height is estimated for 04 Aug 2021 05:15 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 04 Aug 2021 00:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	04 Aug 2021 05:15	Changsu	Republic of Korea	0.7
	04 Aug 2021 05:15	Aya-ri	Republic of Korea	0.7
	04 Aug 2021 05:15	Ch'ongam	Republic of Korea	0.7
	04 Aug 2021 05:30	Chamdu	Republic of Korea	0.5
	04 Aug 2021 05:30	Chinch'ang	Republic of Korea	0.5
	04 Aug 2021 05:00	Changjong-ni	Republic of Korea	0.5
	04 Aug 2021 05:00	Chijung-ni	Republic of Korea	0.5
	04 Aug 2021 00:15	Hangch'on	Republic of Korea	0.2
	04 Aug 2021 00:15	Namhae	Republic of Korea	0.2
	04 Aug 2021 00:15	Gonyang	Republic of Korea	0.2
	04 Aug 2021 00:15	Pit'o	Republic of Korea	0.2
	04 Aug 2021 00:15	Samcheongpo	Republic of Korea	0.2
	04 Aug 2021 05:00	Chinsan-ni	Republic of Korea	0.2
	04 Aug 2021 04:15	Kok'ori	Republic of Korea	0.2
	04 Aug 2021 04:15	Aech'o-ri	Republic of Korea	0.2
	04 Aug 2021 04:15	Watanoha	Japan	0.2
	04 Aug 2021 04:15	Aramachi	Japan	0.2
	04 Aug 2021 04:15	Oritate	Japan	0.2
	04 Aug 2021 04:15	Onagawahama	Japan	0.2
	04 Aug 2021 04:15	Shizugawa	Japan	0.2
	04 Aug 2021 04:15	Tsukihama	Japan	0.2
	04 Aug 2021 04:15	Ommaehama	Japan	0.2
	04 Aug 2021 04:15	Ogatsu	Japan	0.2
	04 Aug 2021 04:15	Aratohama	Japan	0.2
	04 Aug 2021 04:15	Aikawa	Japan	0.2
	04 Aug 2021 04:15	Funagoshi	Japan	0.2
	04 Aug 2021 04:15	Terahama	Japan	0.2
	04 Aug 2021 04:15	Tatsuhama	Japan	0.2
	04 Aug 2021 04:15	Ohama	Japan	0.2
	04 Aug 2021 04:15	Ozashi	Japan	0.2
	04 Aug 2021 04:15	Izushima	Japan	0.2
	04 Aug 2021 04:15	Kodaki	Japan	0.2
	04 Aug 2021 04:15	Kuwahama	Japan	0.2
	04 Aug 2021 04:15	Isatomae	Japan	0.2
	04 Aug 2021 04:15	Terama	Japan	0.2
	04 Aug 2021 04:15	Kumazawa	Japan	0.2
	04 Aug 2021 04:15	Osu	Japan	0.2
	04 Aug 2021 04:15	Natari	Japan	0.2
	04 Aug 2021 04:15	Tomarihama	Japan	0.2
	04 Aug 2021 00:30	Sacheon	Republic of Korea	0.1
	04 Aug 2021 02:00	Nakao	Japan	0.1
	04 Aug 2021 02:00	Obo	Japan	0.1
	04 Aug 2021 02:00	Ogimi	Japan	0.1
	04 Aug 2021 02:00	Kaata	Japan	0.1
	04 Aug 2021 02:00	Hedo	Japan	0.1
	04 Aug 2021 02:00	Ada	Japan	0.1
	04 Aug 2021 04:00	Owada	Japan	0.1
	04 Aug 2021 04:00	Osada	Japan	0.1
	04 Aug 2021 04:00	Ishide	Japan	0.1
	04 Aug 2021 04:00	Furuyado	Japan	0.1
	04 Aug 2021 04:00	Iharacho	Japan	0.1
	04 Aug 2021 04:00	Shimizu	Japan	0.1
	04 Aug 2021 04:00	Komagoe	Japan	0.1
	04 Aug 2021 04:00	Okitsu	Japan	0.1
	04 Aug 2021 04:00	Miyakata	Japan	0.1
	04 Aug 2021 04:00	Higaihi-Yamadera	Japan	0.1
	04 Aug 2021 04:00	Yui	Japan	0.1
	04 Aug 2021 04:00	Funamba	Japan	0.1
	04 Aug 2021 04:00	Kambara	Japan	0.1
	04 Aug 2021 05:00	Cholge	Republic of Korea	0.1
	04 Aug 2021 01:15	Wase	Japan	0.1
	04 Aug 2021 01:15	Asato	Japan	0.1
	04 Aug 2021 01:15	Naze	Japan	0.1
	04 Aug 2021 01:15	Nakachi	Japan	0.1
	04 Aug 2021 01:15	Daikuma	Japan	0.1
	04 Aug 2021 01:15	Takumo	Japan	0.1
	04 Aug 2021 01:15	Kominato	Japan	0.1
	04 Aug 2021 01:15	Akina	Japan	0.1
	04 Aug 2021 01:15	Ashikebu	Japan	0.1
	04 Aug 2021 01:15	Sakiharu	Japan	0.1
	04 Aug 2021 01:15	Tokuchi	Japan	0.1
	04 Aug 2021 01:15	Okachi	Japan	0.1
	04 Aug 2021 01:15	Sekirubu	Japan	0.1
	04 Aug 2021 01:15	Tatsugo	Japan	0.1
	04 Aug 2021 01:15	Akaogi	Japan	0.1
	04 Aug 2021 01:15	Taira	Japan	0.1
	04 Aug 2021 01:15	Akagina	Japan	0.1
	04 Aug 2021 01:15	Setta	Japan	0.1
	04 Aug 2021 01:15	Manya	Japan	0.1
	04 Aug 2021 01:15	Sakibaru	Japan	0.1
	04 Aug 2021 01:15	Kasari	Japan	0.1
	04 Aug 2021 01:15	Usuku	Japan	0.1
	04 Aug 2021 04:45	Chabong	Republic of Korea	0.1
	04 Aug 2021 01:45	Nago	Japan	0.1
	04 Aug 2021 01:45	Teima	Japan	0.1
	04 Aug 2021 05:00	Kita-kyushu	Japan	0.1
	04 Aug 2021 05:00	Yoshimoura	Japan	0.1
	04 Aug 2021 05:00	Murotsuura	Japan	0.1
	04 Aug 2021 05:00	Yasuoka	Japan	0.1
	04 Aug 2021 05:00	Kanda	Japan	0.1
	04 Aug 2021 05:00	Shimonoseki	Japan	0.1
	04 Aug 2021 05:00	Tsunemi	Japan	0.1
	04 Aug 2021 05:00	Chofu	Japan	0.1
	04 Aug 2021 05:00	Moji	Japan	0.1
	04 Aug 2021 05:00	Kagawa	Japan	0.1
	04 Aug 2021 01:15	Kogushi	Japan	0.1
	04 Aug 2021 01:15	Tabe	Japan	0.1
	04 Aug 2021 01:15	Habu	Japan	0.1
	04 Aug 2021 01:45	Aka	Japan	0.1
	04 Aug 2021 01:45	Zamami	Japan	0.1
	04 Aug 2021 01:45	Awaren	Japan	0.1
	04 Aug 2021 01:45	Tokashiku	Japan	0.1
	04 Aug 2021 05:00	Changdo-ri	Republic of Korea	0.1
	04 Aug 2021 05:00	Anp'o	Republic of Korea	0.1
	04 Aug 2021 02:00	Chifuwa	Japan	0.1
	04 Aug 2021 02:00	Itoman	Japan	0.1
	04 Aug 2021 02:00	Naha	Japan	0.1
	04 Aug 2021 02:00	Nakaza	Japan	0.1
	04 Aug 2021 02:00	Ishimine	Japan	0.1
	04 Aug 2021 02:00	Kadena	Japan	0.1
	04 Aug 2021 02:00	Atsuta	Japan	0.1
	04 Aug 2021 02:00	Fusozaki	Japan	0.1
	04 Aug 2021 02:00	Henna	Japan	0.1
	04 Aug 2021 05:30	Chukp'o	Republic of Korea	0.1
	04 Aug 2021 05:30	Ando	Republic of Korea	0.1
	04 Aug 2021 01:30	Ube	Japan	0.1
	04 Aug 2021 02:15	Ishikawa	Japan	0.1
	04 Aug 2021 02:15	Kin	Japan	0.1
	04 Aug 2021 06:00	Chop'o	Republic of Korea	0.1
	04 Aug 2021 06:00	Goseong	Republic of Korea	0.1
	04 Aug 2021 06:00	Chamgae	Republic of Korea	0.1
	04 Aug 2021 04:30	Changch'on	Republic of Korea	0.1
	04 Aug 2021 05:30	Chabup'o	Republic of Korea	0.1
	04 Aug 2021 05:30	Irun	Republic of Korea	0.1
	04 Aug 2021 02:00	Tonaki	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.