Overall Green Tropical Cyclone alert for YUN-YEUNG-23 in Japan from 05 Sep 2023 12:00 UTC to 06 Sep 2023 12:00 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 YUN-YEUNG-23

in Japan

06 Sep 2023 12 UTC

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to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

GFS
HWRF
ECMWF

Impact based on all weather systems in the area

Impact

Tropical Cyclone YUN-YEUNG-23 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	Japan
Exposed population	No people in Category 1 or higher
Maximum wind speed	74 km/h
Maximum storm surge	0.3 m (08 Sep 14:00 UTC)
Vulnerability	Low (Japan)
Landfall	between 08 Sep 2023 00:00 - 08 Sep 2023 12:00 in Japan

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	93 km/h	0.3 m	n.a.	0.5
Overall	74 km/h	0.3 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

93 km/h Current Max.

Up to 45.5 million people in Tropical Storm 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	05 Sep 2023 12:00	102	60 thousand	No people	Japan
2	05 Sep 2023 18:00	102	940 thousand	No people	Japan
3	06 Sep 2023 00:00	93	49.4 million	No people	Japan
4	06 Sep 2023 06:00	93	49.2 million	No people	Japan
5	06 Sep 2023 12:00	93	45.5 million	No people	Japan

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	05 Sep 2023 12:00	Tropical depression	46	no people	no people	22.9, 132.4
2	05 Sep 2023 18:00	Tropical depression	56	no people	no people	23.9, 133.1
3	06 Sep 2023 00:00	Tropical storm	65	no people	no people	25.6, 133.1
4	06 Sep 2023 06:00	Tropical storm	65	no people	no people	26.5, 134.3
5	06 Sep 2023 12:00	Tropical storm	74	no people	no people	27.8, 134.8
5	07 Sep 2023 00:00	Tropical storm	83	no people	8700 people	30.2, 136.7
5	07 Sep 2023 12:00	Tropical storm	93	no people	5.6 million people	32.2, 138.3
5	08 Sep 2023 00:00	Tropical storm	83	no people	43.1 million people	33.9, 139.5
5	08 Sep 2023 12:00	Tropical storm	65	no people	43.8 million people	35.3, 140.4	Japan
5	09 Sep 2023 12:00	Tropical depression	46	no people	no people	38.2, 142.5
5	10 Sep 2023 12:00	Tropical depression	37	no people	no people	39.2, 144.6

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	Population in Tropical Storm or higher strength
Japan	44.1 million people

Provinces

Region Province	Country	Population in Tropical Storm or higher strength
Chubu	Japan	2.5 million people
Kanto	Japan	40.1 million people
Tohoku	Japan	1.4 million people

Populated places

Name	Region Province	Country	City class	Population
Mitsune	Shizuoka	Japan	City	-
Kakeoawa	Shizuoka	Japan	City	-
Shimada	Shizuoka	Japan	City	76000 people
Fujieda	Shizuoka	Japan	City	130000 people
Yaizu	Shizuoka	Japan	City	120000 people
Matsuzaki	Shizuoka	Japan	City	-
Shizuoka	Shizuoka	Japan	Major city	700000 people
Ito	Shizuoka	Japan	City	72000 people
Numazu	Shizuoka	Japan	City	200000 people
Yoshiwara	Shizuoka	Japan	City	-
Fujinomiya	Shizuoka	Japan	City	120000 people
Mishima	Shizuoka	Japan	City	110000 people
Atami	Shizuoka	Japan	City	40000 people
Odawara	Kanagawa	Japan	City	200000 people
Tateyama	Chiba	Japan	City	49000 people
Chikura	Chiba	Japan	City	-
Fuji-yoshida	Yamanashi	Japan	City	-
Hiratsuka	Kanagawa	Japan	City	260000 people
Chigasaki	Kanagawa	Japan	City	230000 people
Isehara	Kanagawa	Japan	City	100000 people
Fujisawa	Kanagawa	Japan	City	390000 people
Yokosuka	Kanagawa	Japan	City	420000 people
Kamakura	Kanagawa	Japan	City	160000 people
Atsugi	Kanagawa	Japan	City	230000 people
Yokohama	Kanagawa	Japan	Major city	3.6 million people
Hachioji	Tokyo	Japan	City	540000 people
Kisarazu	Chiba	Japan	City	120000 people
Kawasaki	Kanagawa	Japan	Major city	1.3 million people
Tachikawa	Tokyo	Japan	City	170000 people
Chofu	Tokyo	Japan	City	200000 people
Ohara	Chiba	Japan	City	20000 people
Kodaira	Tokyo	Japan	City	190000 people
Hanno	Saitama	Japan	City	82000 people
Mobara	Chiba	Japan	City	96000 people
Tokyo	Tokyo	Japan	Capital	8.1 million people
Chiba	Chiba	Japan	Major city	920000 people
Ichikawa	Chiba	Japan	City	460000 people
Kawagoe	Saitama	Japan	City	330000 people
Sakado	Saitama	Japan	City	96000 people
Funabashi	Chiba	Japan	City	560000 people
Matsudo	Chiba	Japan	City	460000 people
Omiya	Saitama	Japan	City	440000 people
Katakai	Chiba	Japan	City	-
Kamagaya	Chiba	Japan	City	110000 people
Naruto	Chiba	Japan	City	22000 people
Sakura	Chiba	Japan	City	180000 people
Kumagaya	Saitama	Japan	City	150000 people
Noda	Chiba	Japan	City	120000 people
Saitama	Saitama	Japan	Major city	1.1 million people
Abiko	Chiba	Japan	City	130000 people
Narita	Chiba	Japan	City	100000 people
Tako	Chiba	Japan	City	-
Isezaki	Gunma	Japan	City	-
Koga	Ibaraki	Japan	City	57000 people
Ashikaga	Tochigi	Japan	City	160000 people
Choshi	Chiba	Japan	City	84000 people
Omigawa	Chiba	Japan	City	25000 people
Oyama	Tochigi	Japan	City	150000 people
Tsukuba	Ibaraki	Japan	City	180000 people
Shimodate	Ibaraki	Japan	City	63000 people
Mito	Ibaraki	Japan	Major city	240000 people
Utsunmiya	Tochigi	Japan	City	-
Karasuyama	Tochigi	Japan	City	18000 people
Kuji	Ibaraki	Japan	City	35000 people
Hitachi	Ibaraki	Japan	City	180000 people
Ueda	Fukushima	Japan	City	-
Onahama	Fukushima	Japan	City	-
Taira	Fukushima	Japan	City	-
Koriyama	Fukushima	Japan	City	320000 people
Ishinomaki	Miyagi	Japan	City	120000 people

Critical infrastructure

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

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)
Hachijo Jima	HAC	92	Civ.	Paved	Yes	5900
Miyake Jima	MYE	20	Civ.	Paved	Yes	3900
		29				0
Shizuhama		7	Civ.	Paved	Yes	4900
Oshima	OIM	40	Civ.	Paved	Yes	3900
Fuji		686				0
Nashigahara		1001				0
Tateyama		3				0
Atsugi	NJA	62	Mil.	Paved	Yes	7900
Katsner AAF		109	Civ.	Paved	No	1900
Yokohama	YOK	unknown				0
Kisarazu		3	Mil.	Paved	Yes	6000
Tachikawa		95				0
Tokyo Haneda International	HND	7	Civ.	Paved	Yes	9800
Chofu		41	Civ.	Paved	No	3200
Yokota AFB	OKO	139	Mil.	Paved	Yes	11000
Iruma		91	Mil.	Paved	Yes	6500
Shimoshizu		30				0
Honda		12				0
Shimofusa		30	Civ.	Paved	Yes	7300
Chiba-ken		19				0
Tokyo Narita International	NRT	42	Civ.	Paved	Yes	13100
Ryugasaki South		2				0
Onishi		20				0
Shimo Kolzumi		30				0
Ryugasaki		2				0
		26				0
Hyakuri		32	Mil.	Paved	Yes	8800
Suzumenomiya		82				0
Utsunomiya	QUT	102	Civ.	Paved	Yes	5500
Otawara		201				0
Fukushima	FKS	372	Civ.	Paved	Yes	8200
Matsushima		2	Civ.	Paved	Yes	8800

Ports

Name	LOCODE	Country
Aoga Island		Japan
Yaene		Japan
Mikura		Japan
Omaezaki	JPOMZ	Japan
Kozu Island		Japan
Miyake		Japan
Nii		Japan
Shimoda	JPSMD	Japan
Shimizu	JPSMZ	Japan
Oshima	JPOSM	Japan
Tagonour	JPTGO	Japan
Numazu	JPNUM	Japan
Tateyama	JPTTY	Japan
Kurihama	JPKRH	Japan
Yokosuka	JPYOS	Japan
Neghisi	JPNGI	Japan
Yokohama	JPYOK	Japan
Katsuura Ko		Japan
Kisarazu	JPKZU	Japan
Kawasaki	JPKWS	Japan
Ogasawara	JPOGA	Japan
Goi	JPGOI	Japan
Tokyo	JPTYO	Japan
Chiba	JPCHB	Japan
Anegasaki	JPANE	Japan
Katunan Ko		Japan
Choshi	JPCHO	Japan
Kashima	JPKSM	Japan
Hitachi	JPHTC	Japan
Onahama	JPONA	Japan
Soma	JPSMA	Japan
Ishinomaki	JPISM	Japan
Onagawa	JPONG	Japan

Dams

Reservoir	Dam Name	River	Year
Matsukawako	Okuno	Itookawa	1989
Tenshiko	Kakimoto	Sanogawa	1952
Iizumishusuizeki	Iizumishusuizeki	Sakawagawa	1973
Tanzawako	Miho	Kawauchigawa	1978
Sakuma	Sakuma	Okuzuregawa	1990
Ono	Ono	Yatagawa	1914
Miyagaseko	Miyagase	Nakatsugawa	2001
Sagamiko	Sagami	Sagamigawa	1947
Kori	Kori	Korigawa	1972
Tsukuiko	Shiroyama	Sagamigawa	1964
Kameyamako	Kameyama	Obitsugawa	1980
Okutamako	Ogohchi	Tamagawa	1957
Takatakiko	Takataki	Yorogawa	1990
Tamako	Murayamakami	Tamagawa	1924
Tamako	Murayamashimo	Tamagawa	2008
Naguriko	Arima	Arimagawa	1985
Sayamako	Yamaguchi	Tamagawa	2002
Yamakura	Yamakura	Yamakuragawa	1964
Miyazawako	Miyazawatameike	Koazegawa	1941
Miyukiko	Gongendochosetsuchi	Nakagawa	1991
Yanakako	Wataraseyusuichi	Watarasegawa	1989
Kasumigaura	Kasumigaura-Kaihatsu	Tonegawa	1995
Jajanboike	Kozogawa	Kozogawa	1985
Higashikoyako	Nishiarakawa	Nishiarakawa	1967
Terayama	Terayama	Miyakawa	1984
Shiobara	Shiobara	Hokigawa	1978
Mizunuma	Mizunuma	Hanazonokawa	1966
Shitokiko	Shitoki	Shitokigawa	1983
Takashibako	Takashiba	Samekawa	1961
Fujinumachosuichi	Fujimuna	Ebanagawa	1948
Bobatako	Sengozawa	Kitasugawa	1974
Sakashita	Sakashita	Okawaragawa	1973
Ogaki	Ogaki	Ukedogawa	1985
Yokokawa	Yokokawa	Otagawa	1983
Takanokura	Takanokura	Mizunashigawa	1975
Tamanotameike	Tamano	Udagawa	1945

Nuclear plants

Name	Country	Reactors
HAMAOKA	JAPAN	5
TOKAI	JAPAN	3
FUKUSHIMA-DAINI	JAPAN	4
FUKUSHIMA-DAIICHI	JAPAN	6
ONAGAWA	JAPAN	3

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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

0.3 m

The maximum Storm surge height is 0.3m in Asahi Yokaichiba, Japan. This height is estimated for 08 Sep 2023 14:00 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 (81 locations). Calculation based on advisory number 5 of 06 Sep 2023 12:00:00 UTC. (Simulation using 6 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	08 Sep 2023 14:00	Asahi Yokaichiba	Japan	0.3
	08 Sep 2023 14:00	Okunoya	Japan	0.3
	08 Sep 2023 14:00	Yatabe	Japan	0.3
	08 Sep 2023 14:00	Katakai	Japan	0.3
	08 Sep 2023 14:00	Hasunuma	Japan	0.3
	08 Sep 2023 12:00	Ichinomiya	Japan	0.3
	08 Sep 2023 14:00	Choshi	Japan	0.3
	08 Sep 2023 14:00	Tokawacho	Japan	0.3
	08 Sep 2023 14:00	Inuwaka	Japan	0.3
	08 Sep 2023 10:00	Ohara	Japan	0.2
	08 Sep 2023 10:00	Katsuura	Japan	0.2
	08 Sep 2023 10:00	Wada	Japan	0.2
	08 Sep 2023 10:00	Kamogawa	Japan	0.2
	08 Sep 2023 17:00	Hokota	Japan	0.2
	08 Sep 2023 17:00	Katsuori	Japan	0.2
	08 Sep 2023 17:00	Taiyo	Japan	0.2
	08 Sep 2023 17:00	Otake	Japan	0.2
	08 Sep 2023 17:00	Dainigorisawa	Japan	0.2
	08 Sep 2023 17:00	Muyokama	Japan	0.2
	08 Sep 2023 17:00	Omi	Japan	0.2
	08 Sep 2023 17:00	Kyochikama	Japan	0.2
	08 Sep 2023 17:00	Hamatsuga	Japan	0.2
	08 Sep 2023 17:00	Aotsuka	Japan	0.2
	08 Sep 2023 17:00	Kyuchu	Japan	0.2
	08 Sep 2023 17:00	Kashima	Japan	0.2
	08 Sep 2023 17:00	Koya	Japan	0.2
	08 Sep 2023 03:00	Ako	Japan	0.2
	08 Sep 2023 03:00	Higashiyama	Japan	0.2
	08 Sep 2023 03:00	Okubo	Japan	0.2
	08 Sep 2023 03:00	Kamitsuki	Japan	0.2
	08 Sep 2023 03:00	Tsubota	Japan	0.2
	08 Sep 2023 03:00	Gebano	Japan	0.2
	08 Sep 2023 03:00	Mlike	Japan	0.2
	07 Sep 2023 23:00	Sato	Japan	0.2
	07 Sep 2023 23:00	Nango	Japan	0.2
	08 Sep 2023 07:00	Kembutsu	Japan	0.2
	08 Sep 2023 07:00	Ko	Japan	0.2
	08 Sep 2023 07:00	Fugiwara	Japan	0.2
	08 Sep 2023 07:00	Nemoto	Japan	0.2
	08 Sep 2023 07:00	Tateyama	Japan	0.2
	08 Sep 2023 07:00	Kanamaru	Japan	0.2
	08 Sep 2023 07:00	Hongo	Japan	0.2
	08 Sep 2023 07:00	Olo	Japan	0.2
	08 Sep 2023 07:00	Kokubu	Japan	0.2
	08 Sep 2023 07:00	Hara	Japan	0.2
	08 Sep 2023 07:00	Shiramazu	Japan	0.2
	08 Sep 2023 07:00	Okawa	Japan	0.2
	08 Sep 2023 07:00	Seto	Japan	0.2
	08 Sep 2023 07:00	Kubo	Japan	0.2
	08 Sep 2023 07:00	Shirako	Japan	0.2
	08 Sep 2023 07:00	Chikura	Japan	0.2
	08 Sep 2023 08:00	Katsuyama	Japan	0.2
	08 Sep 2023 07:00	Sunosaki	Japan	0.2
	08 Sep 2023 07:00	Konuma	Japan	0.2
	08 Sep 2023 17:00	Asahi	Japan	0.2
	08 Sep 2023 17:00	Oyagaw	Japan	0.2
	08 Sep 2023 17:00	Natsumi	Japan	0.2
	08 Sep 2023 17:00	Kamigama	Japan	0.2
	08 Sep 2023 17:00	Noda	Japan	0.2
	08 Sep 2023 04:00	Sashikiji	Japan	0.1
	08 Sep 2023 04:00	Kudatchi	Japan	0.1
	08 Sep 2023 04:00	Habuminato	Japan	0.1
	08 Sep 2023 00:00	Kozushima	Japan	0.1
	08 Sep 2023 03:00	Shikineshima	Japan	0.1
	08 Sep 2023 03:00	Motomura	Japan	0.1
	08 Sep 2023 03:00	Wakago	Japan	0.1
	08 Sep 2023 04:00	Mabushi	Japan	0.1
	08 Sep 2023 05:00	Senzu	Japan	0.1
	08 Sep 2023 03:00	Toshima	Japan	0.1
	08 Sep 2023 05:00	Motomachi	Japan	0.1
	08 Sep 2023 05:00	Motomura	Japan	0.1
	08 Sep 2023 05:00	Jinooka	Japan	0.1
	08 Sep 2023 05:00	Okada	Japan	0.1
	08 Sep 2023 18:00	Ogushi	Japan	0.1
	08 Sep 2023 18:00	Nagasuna	Japan	0.1
	08 Sep 2023 18:00	Shirane	Japan	0.1
	08 Sep 2023 18:00	Toyooka	Japan	0.1
	08 Sep 2023 18:00	Kuji	Japan	0.1
	08 Sep 2023 18:00	Nakaminato	Japan	0.1
	07 Sep 2023 20:00	Kashitate	Japan	0.1
	07 Sep 2023 22:00	Mitsune	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.