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 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 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	68 km/h
Maximum storm surge	0.5 m (04 Aug 17:00 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	68 km/h	0.5 m	164 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 40 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 12:00 UTC

Category	Country	Population
Tropical Storm	Japan	42,575

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	72	-	-	-	-	-	-	-
10	04 Aug 2021 12:00	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 12:00 UTC

Level	Country	Population
100-250 mm	Japan	2,123
50-100 mm	Japan	36,579

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	138	-	-	-	-	-	-	-
10	04 Aug 2021 12:00	278	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 17:00 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 12:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	04 Aug 2021 17:00	Changsu	Republic of Korea	0.5
	04 Aug 2021 17:00	Aya-ri	Republic of Korea	0.5
	04 Aug 2021 17:00	Ch'ongam	Republic of Korea	0.5
	04 Aug 2021 17:00	Chinch'ang	Republic of Korea	0.4
	04 Aug 2021 17:15	Chamdu	Republic of Korea	0.4
	04 Aug 2021 16:45	Changjong-ni	Republic of Korea	0.4
	04 Aug 2021 16:45	Chijung-ni	Republic of Korea	0.4
	04 Aug 2021 18:00	Nishinoura	Japan	0.2
	04 Aug 2021 18:00	Meihama	Japan	0.2
	04 Aug 2021 18:00	Saitosaki	Japan	0.2
	04 Aug 2021 18:00	Fukuoka	Japan	0.2
	04 Aug 2021 18:00	Mitoma	Japan	0.2
	04 Aug 2021 18:00	Kashii	Japan	0.2
	04 Aug 2021 18:00	Harumachi	Japan	0.2
	04 Aug 2021 18:00	Tsuyazaki	Japan	0.2
	04 Aug 2021 18:00	Shingu	Japan	0.2
	04 Aug 2021 18:00	Fukumamachi	Japan	0.2
	04 Aug 2021 18:00	Fukuma	Japan	0.2
	04 Aug 2021 13:45	Hangch'on	Republic of Korea	0.2
	04 Aug 2021 13:45	Namhae	Republic of Korea	0.2
	04 Aug 2021 13:45	Gonyang	Republic of Korea	0.2
	04 Aug 2021 13:45	Pit'o	Republic of Korea	0.2
	04 Aug 2021 13:45	Samcheongpo	Republic of Korea	0.2
	04 Aug 2021 18:00	Maebaru	Japan	0.2
	04 Aug 2021 17:45	Yobuko	Japan	0.2
	04 Aug 2021 17:45	Tobo	Japan	0.2
	04 Aug 2021 17:45	Karatsu	Japan	0.2
	04 Aug 2021 17:45	Oka	Japan	0.2
	04 Aug 2021 17:45	Fuchinoe	Japan	0.2
	04 Aug 2021 17:45	Keya	Japan	0.2
	04 Aug 2021 17:45	Fukae	Japan	0.2
	04 Aug 2021 16:00	Anp'o	Republic of Korea	0.2
	04 Aug 2021 16:00	Chungbang	Republic of Korea	0.2
	04 Aug 2021 16:00	Chabong	Republic of Korea	0.2
	04 Aug 2021 16:00	Yeosu	Republic of Korea	0.2
	04 Aug 2021 16:00	Chukp'o	Republic of Korea	0.2
	04 Aug 2021 14:00	Chifuwa	Japan	0.1
	04 Aug 2021 14:00	Naha	Japan	0.1
	04 Aug 2021 14:00	Ishimine	Japan	0.1
	04 Aug 2021 14:00	Kadena	Japan	0.1
	04 Aug 2021 14:00	Atsuta	Japan	0.1
	04 Aug 2021 14:00	Fusozaki	Japan	0.1
	04 Aug 2021 14:00	Ishikawa	Japan	0.1
	04 Aug 2021 14:00	Henna	Japan	0.1
	04 Aug 2021 14:00	Kin	Japan	0.1
	04 Aug 2021 17:15	Azuchi	Japan	0.1
	04 Aug 2021 17:15	Hirado	Japan	0.1
	04 Aug 2021 17:15	Emukae	Japan	0.1
	04 Aug 2021 17:15	Mikuriya	Japan	0.1
	04 Aug 2021 17:15	Matsuura	Japan	0.1
	04 Aug 2021 17:15	Ao	Japan	0.1
	04 Aug 2021 17:15	Madarashima	Japan	0.1
	04 Aug 2021 17:15	Imabuku	Japan	0.1
	04 Aug 2021 17:15	Kusuku	Japan	0.1
	04 Aug 2021 16:45	Chinsan-ni	Republic of Korea	0.1
	04 Aug 2021 13:30	Itoman	Japan	0.1
	04 Aug 2021 13:30	Nakaza	Japan	0.1
	04 Aug 2021 17:45	Gonoura	Japan	0.1
	04 Aug 2021 17:45	Katsumoto	Japan	0.1
	04 Aug 2021 17:45	Seto	Japan	0.1
	04 Aug 2021 17:45	Yamanaka	Japan	0.1
	04 Aug 2021 14:15	Ichi	Japan	0.1
	04 Aug 2021 17:45	Kanesaki	Japan	0.1
	04 Aug 2021 14:45	Awaren	Japan	0.1
	04 Aug 2021 14:45	Tokashiku	Japan	0.1
	04 Aug 2021 14:45	Aka	Japan	0.1
	04 Aug 2021 14:45	Zamami	Japan	0.1
	04 Aug 2021 18:00	Ashiya	Japan	0.1
	04 Aug 2021 18:00	Kita-kyushu	Japan	0.1
	04 Aug 2021 18:00	Yoshimoura	Japan	0.1
	04 Aug 2021 18:00	Murotsuura	Japan	0.1
	04 Aug 2021 18:00	Yasuoka	Japan	0.1
	04 Aug 2021 14:45	Tonaki	Japan	0.1
	04 Aug 2021 14:45	Aguni	Japan	0.1
	04 Aug 2021 14:45	Hama	Japan	0.1
	04 Aug 2021 14:30	Wase	Japan	0.1
	04 Aug 2021 14:30	Asato	Japan	0.1
	04 Aug 2021 14:30	Naze	Japan	0.1
	04 Aug 2021 14:30	Nakachi	Japan	0.1
	04 Aug 2021 14:30	Daikuma	Japan	0.1
	04 Aug 2021 14:30	Takumo	Japan	0.1
	04 Aug 2021 14:30	Kominato	Japan	0.1
	04 Aug 2021 14:30	Akina	Japan	0.1
	04 Aug 2021 14:30	Ashikebu	Japan	0.1
	04 Aug 2021 14:30	Sakiharu	Japan	0.1
	04 Aug 2021 14:30	Tokuchi	Japan	0.1
	04 Aug 2021 14:30	Okachi	Japan	0.1
	04 Aug 2021 14:30	Sekirubu	Japan	0.1
	04 Aug 2021 14:30	Tatsugo	Japan	0.1
	04 Aug 2021 14:30	Akaogi	Japan	0.1
	04 Aug 2021 14:30	Taira	Japan	0.1
	04 Aug 2021 14:30	Akagina	Japan	0.1
	04 Aug 2021 14:30	Setta	Japan	0.1
	04 Aug 2021 14:30	Manya	Japan	0.1
	04 Aug 2021 14:30	Sakibaru	Japan	0.1
	04 Aug 2021 14:30	Kasari	Japan	0.1
	04 Aug 2021 14:30	Usuku	Japan	0.1
	04 Aug 2021 16:30	Toguchi	Japan	0.1
	04 Aug 2021 16:30	Nago	Japan	0.1
	04 Aug 2021 16:30	Nakao	Japan	0.1
	04 Aug 2021 16:30	Teima	Japan	0.1
	04 Aug 2021 16:30	Obo	Japan	0.1
	04 Aug 2021 16:30	Kaata	Japan	0.1
	04 Aug 2021 14:15	Taniyama	Japan	0.1
	04 Aug 2021 14:15	Kiire	Japan	0.1
	04 Aug 2021 14:15	Kagoshima	Japan	0.1
	04 Aug 2021 14:15	Yuno	Japan	0.1
	04 Aug 2021 14:15	Tarumizu	Japan	0.1
	04 Aug 2021 18:00	Susuna	Japan	0.1
	04 Aug 2021 18:00	Kin	Japan	0.1
	04 Aug 2021 18:00	Furusato	Japan	0.1
	04 Aug 2021 18:00	Toyo	Japan	0.1
	04 Aug 2021 14:15	Nanakuba	Japan	0.1
	04 Aug 2021 14:15	Koike	Japan	0.1
	04 Aug 2021 14:15	Koramuki	Japan	0.1
	04 Aug 2021 13:45	Ibusuki	Japan	0.1
	04 Aug 2021 13:45	Yamagawa	Japan	0.1
	04 Aug 2021 13:45	Baba	Japan	0.1
	04 Aug 2021 13:45	Furue	Japan	0.1
	04 Aug 2021 13:45	O-nejime	Japan	0.1
	04 Aug 2021 14:45	Higashieue	Japan	0.1
	04 Aug 2021 13:30	Sacheon	Republic of Korea	0.1
	04 Aug 2021 17:30	Ichibuura	Japan	0.1
	04 Aug 2021 14:00	Fumoto	Japan	0.1
	04 Aug 2021 14:00	Futagawa	Japan	0.1
	04 Aug 2021 14:00	Fukuyama	Japan	0.1
	04 Aug 2021 18:00	Araebuch'un	Republic of Korea	0.1
	04 Aug 2021 18:00	Chuktori	Republic of Korea	0.1
	04 Aug 2021 18:00	Jangseunpo	Republic of Korea	0.1
	04 Aug 2021 18:00	Daiko	Republic of Korea	0.1
	04 Aug 2021 17:45	Kottoi	Japan	0.1
	04 Aug 2021 17:45	Kogushi	Japan	0.1
	04 Aug 2021 17:45	Chofu	Japan	0.1
	04 Aug 2021 17:45	Kagawa	Japan	0.1
	04 Aug 2021 16:15	Kok'ori	Republic of Korea	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.