Overall Green Tropical Cyclone alert for SHANSHAN-18 in Japan from 02 Aug 2018 18:00 UTC to 05 Aug 2018 00:00 UTC

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GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone SHANSHAN-18 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	2.3 million in Category 1 or higher
Maximum wind speed	176 km/h
Maximum storm surge	0.4 m (08 Aug 22:00 UTC)
Vulnerability	Low (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	167 km/h	0.4 m	n.a.	0.5
Overall	176 km/h	0.4 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

167 km/h Current Max.

Up to 5.4 million people in Category 1 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	02 Aug 2018 18:00	148	1.5 million	No people	Japan
2	03 Aug 2018 00:00	148	90 thousand	No people	Japan
3	03 Aug 2018 06:00	148	20 thousand	No people
4	03 Aug 2018 12:00	167	49 million	No people	Japan
5	03 Aug 2018 18:00	167	58.2 million	No people	Japan
6	04 Aug 2018 00:00	167	59 million	No people	Japan
7	04 Aug 2018 06:00	176	54.9 million	1.3 million	Japan
8	04 Aug 2018 12:00	176	64.4 million	230 thousand	Japan
9	04 Aug 2018 18:00	176	64.6 million	5.5 million	Japan
10	05 Aug 2018 00:00	167	69.4 million	5.4 million	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	02 Aug 2018 18:00	Tropical depression	46	no people	no people	18.6, 150.7
2	03 Aug 2018 00:00	Tropical depression	56	no people	no people	17.7, 150.4
3	03 Aug 2018 06:00	Tropical storm	65	no people	no people	18, 150.5
4	03 Aug 2018 12:00	Tropical storm	83	no people	no people	18.5, 150
5	03 Aug 2018 18:00	Tropical storm	93	no people	no people	19.3, 149.4
6	04 Aug 2018 00:00	Tropical storm	102	no people	no people	20.1, 149.2
7	04 Aug 2018 06:00	Category 1	120	no people	no people	20.8, 148.8
8	04 Aug 2018 12:00	Category 1	130	no people	no people	21.8, 148.2
9	04 Aug 2018 18:00	Category 1	139	no people	no people	22.5, 147.7
10	05 Aug 2018 00:00	Category 1	139	no people	no people	23, 147.4
10	05 Aug 2018 12:00	Category 2	157	no people	2200 people	24.7, 146.5
10	06 Aug 2018 00:00	Category 2	167	no people	2200 people	26.4, 145.6
10	06 Aug 2018 12:00	Category 2	167	no people	2200 people	28.1, 144.6
10	07 Aug 2018 00:00	Category 2	157	no people	4.7 million people	29.8, 143.5	Japan
10	08 Aug 2018 00:00	Category 1	130	5.4 million people	64.4 million people	32.7, 141.5	Japan
10	09 Aug 2018 00:00	Tropical storm	102	no people	69.4 million people	35.4, 140.8	Japan
10	10 Aug 2018 00:00	Tropical storm	74	no people	no people	39.4, 143.5

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
Japan

Provinces

Region Province	Country
Kanto	Japan

Populated places

Name	Region Province	Country	City class	Population
Chikura	Chiba	Japan	City	-
Ohara	Chiba	Japan	City	20000 people
Mobara	Chiba	Japan	City	96000 people
Katakai	Chiba	Japan	City	-
Choshi	Chiba	Japan	City	84000 people
Kisarazu	Chiba	Japan	City	120000 people
Naruto	Chiba	Japan	City	22000 people
Tako	Chiba	Japan	City	-
Chiba	Chiba	Japan	Major city	920000 people
Narita	Chiba	Japan	City	100000 people
Omigawa	Chiba	Japan	City	25000 people
Sakura	Chiba	Japan	City	180000 people
Funabashi	Chiba	Japan	City	560000 people
Ichikawa	Chiba	Japan	City	460000 people
Kamagaya	Chiba	Japan	City	110000 people
Abiko	Chiba	Japan	City	130000 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)
Kisarazu		3	Mil.	Paved	Yes	6000
Shimoshizu		30				0
Tokyo Narita International	NRT	42	Civ.	Paved	Yes	13100
Ryugasaki South		2				0
Shimofusa		30	Civ.	Paved	Yes	7300
Ryugasaki		2				0

Ports

Name	LOCODE	Country
Katsuura Ko		Japan
Choshi	JPCHO	Japan
Kisarazu	JPKZU	Japan
Goi	JPGOI	Japan
Chiba	JPCHB	Japan
Anegasaki	JPANE	Japan
Kashima	JPKSM	Japan
Katunan Ko		Japan

Dams

Reservoir	Dam Name	River	Year
Sakuma	Sakuma	Okuzuregawa	1990
Kameyamako	Kameyama	Obitsugawa	1980
Takatakiko	Takataki	Yorogawa	1990
Kori	Kori	Korigawa	1972
Yamakura	Yamakura	Yamakuragawa	1964
Kasumigaura	Kasumigaura-Kaihatsu	Tonegawa	1995

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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

0.4 m

The maximum Storm surge height is 0.4m in Ichinomiya, Japan. This height is estimated for 08 Aug 2018 22:00 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 (153 locations). Calculation based on advisory number 10 of 05 Aug 2018 00:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	08 Aug 2018 22:00	Ichinomiya	Japan	0.4
	09 Aug 2018 00:00	Okunoya	Japan	0.4
	09 Aug 2018 00:00	Yatabe	Japan	0.4
	08 Aug 2018 22:00	Katakai	Japan	0.4
	09 Aug 2018 00:00	Kashima	Japan	0.4
	09 Aug 2018 00:00	Aotsuka	Japan	0.4
	09 Aug 2018 00:00	Kyuchu	Japan	0.4
	09 Aug 2018 00:00	Koya	Japan	0.4
	08 Aug 2018 23:00	Hasunuma	Japan	0.4
	09 Aug 2018 00:00	Choshi	Japan	0.4
	09 Aug 2018 00:00	Omi	Japan	0.3
	09 Aug 2018 00:00	Hamatsuga	Japan	0.3
	09 Aug 2018 00:00	Taiyo	Japan	0.3
	09 Aug 2018 00:00	Dainigorisawa	Japan	0.3
	09 Aug 2018 00:00	Muyokama	Japan	0.3
	09 Aug 2018 00:00	Kyochikama	Japan	0.3
	09 Aug 2018 00:00	Otake	Japan	0.3
	09 Aug 2018 00:00	Asahi Yokaichiba	Japan	0.3
	09 Aug 2018 00:00	Hokota	Japan	0.3
	09 Aug 2018 00:00	Katsuori	Japan	0.3
	09 Aug 2018 00:00	Ogushi	Japan	0.3
	09 Aug 2018 00:00	Natsumi	Japan	0.3
	09 Aug 2018 00:00	Noda	Japan	0.3
	09 Aug 2018 00:00	Kamigama	Japan	0.3
	09 Aug 2018 00:00	Tokawacho	Japan	0.3
	09 Aug 2018 00:00	Inuwaka	Japan	0.3
	08 Aug 2018 20:00	Ohara	Japan	0.3
	09 Aug 2018 00:00	Nagasuna	Japan	0.3
	09 Aug 2018 00:00	Shirane	Japan	0.3
	09 Aug 2018 00:00	Toyooka	Japan	0.3
	09 Aug 2018 00:00	Kuji	Japan	0.3
	09 Aug 2018 00:00	Nakaminato	Japan	0.3
	09 Aug 2018 00:00	Mizuki	Japan	0.3
	08 Aug 2018 20:00	Katsuura	Japan	0.3
	09 Aug 2018 00:00	Narusawa	Japan	0.3
	09 Aug 2018 00:00	Moto-Kawarago	Japan	0.3
	09 Aug 2018 00:00	Hitachi	Japan	0.2
	09 Aug 2018 00:00	Ogitsu	Japan	0.2
	09 Aug 2018 00:00	Tomobe	Japan	0.2
	09 Aug 2018 00:00	Tajirihama	Japan	0.2
	09 Aug 2018 00:00	Kawaziri	Japan	0.2
	09 Aug 2018 00:00	Kawajiri	Japan	0.2
	09 Aug 2018 00:00	Hama	Japan	0.2
	09 Aug 2018 00:00	Kubota	Japan	0.2
	09 Aug 2018 00:00	Ueda	Japan	0.2
	09 Aug 2018 00:00	Terashita	Japan	0.2
	09 Aug 2018 00:00	Hirakata	Japan	0.2
	09 Aug 2018 00:00	Asahi	Japan	0.2
	09 Aug 2018 00:00	Oyagaw	Japan	0.2
	09 Aug 2018 00:00	Kitakubo	Japan	0.2
	09 Aug 2018 00:00	Kisara	Japan	0.2
	09 Aug 2018 00:00	Ono-Yasashi	Japan	0.2
	09 Aug 2018 00:00	Isohara	Japan	0.2
	09 Aug 2018 00:00	Shuku	Japan	0.2
	09 Aug 2018 00:00	Sakamoto	Japan	0.2
	09 Aug 2018 00:00	Komagamine	Japan	0.2
	09 Aug 2018 00:00	Iso	Japan	0.2
	09 Aug 2018 00:00	Tsurishi	Japan	0.2
	09 Aug 2018 00:00	Yunami	Japan	0.2
	09 Aug 2018 00:00	Nakumura	Japan	0.2
	09 Aug 2018 00:00	Tachiya	Japan	0.2
	09 Aug 2018 00:00	Haragama	Japan	0.2
	09 Aug 2018 00:00	Umekawa	Japan	0.2
	09 Aug 2018 00:00	Isobe	Japan	0.2
	09 Aug 2018 00:00	Soeno	Japan	0.2
	09 Aug 2018 00:00	Tanebe	Japan	0.2
	09 Aug 2018 00:00	Obama	Japan	0.2
	09 Aug 2018 00:00	Onahama	Japan	0.2
	09 Aug 2018 00:00	Yamashita	Japan	0.2
	09 Aug 2018 00:00	Yokoyama	Japan	0.2
	09 Aug 2018 00:00	Shibamachi	Japan	0.2
	09 Aug 2018 00:00	Warabi	Japan	0.2
	09 Aug 2018 00:00	Kaikomba	Japan	0.2
	09 Aug 2018 00:00	Kasano	Japan	0.2
	09 Aug 2018 00:00	Hanagama	Japan	0.2
	09 Aug 2018 00:00	Arahama	Japan	0.2
	09 Aug 2018 00:00	Kabasaki	Japan	0.2
	09 Aug 2018 00:00	Aratame	Japan	0.2
	09 Aug 2018 00:00	Omori	Japan	0.2
	09 Aug 2018 00:00	Naraha	Japan	0.2
	09 Aug 2018 00:00	Kami-Shigeoka	Japan	0.2
	09 Aug 2018 00:00	Ide	Japan	0.2
	09 Aug 2018 00:00	Shimo-Masuda	Japan	0.2
	09 Aug 2018 00:00	Sangenchaya	Japan	0.2
	09 Aug 2018 00:00	Ninokura	Japan	0.2
	09 Aug 2018 00:00	Ainokama	Japan	0.2
	09 Aug 2018 00:00	Kita-Kama	Japan	0.2
	09 Aug 2018 00:00	Fujitsuka	Japan	0.2
	09 Aug 2018 00:00	Ohahama	Japan	0.2
	09 Aug 2018 00:00	Ena	Japan	0.2
	09 Aug 2018 00:00	Shimo-Takaku	Japan	0.2
	09 Aug 2018 00:00	Toyoma	Japan	0.2
	09 Aug 2018 00:00	Kami-Asamigawa	Japan	0.2
	09 Aug 2018 00:00	Shimo-Kitabo	Japan	0.2
	09 Aug 2018 00:00	Onaba	Japan	0.2
	09 Aug 2018 00:00	Kiyohashi	Japan	0.2
	09 Aug 2018 00:00	Tomioka	Japan	0.2
	09 Aug 2018 00:00	Oragahama	Japan	0.2
	09 Aug 2018 00:00	Takahira	Japan	0.2
	09 Aug 2018 00:00	Minami-Ibi	Japan	0.2
	09 Aug 2018 00:00	Kayahama	Japan	0.2
	09 Aug 2018 00:00	Ido	Japan	0.2
	09 Aug 2018 00:00	Arayashik	Japan	0.2
	09 Aug 2018 00:00	Yotsukura	Japan	0.2
	09 Aug 2018 00:00	Futaba	Japan	0.2
	09 Aug 2018 00:00	Tago	Japan	0.2
	09 Aug 2018 00:00	Niida	Japan	0.2
	09 Aug 2018 00:00	Fukanuma	Japan	0.2
	09 Aug 2018 00:00	Shinhama	Japan	0.2
	09 Aug 2018 00:00	Wada-Shinden	Japan	0.2
	09 Aug 2018 00:00	Gamo	Japan	0.2
	09 Aug 2018 00:00	Shobudahama	Japan	0.2
	09 Aug 2018 00:00	Odaka	Japan	0.2
	09 Aug 2018 00:00	Umenomiya-Jutaku	Japan	0.2
	09 Aug 2018 00:00	Shiogama	Japan	0.2
	09 Aug 2018 00:00	Watari	Japan	0.1
	09 Aug 2018 00:00	Hayakawa	Japan	0.1
	09 Aug 2018 00:00	Kashima	Japan	0.1
	09 Aug 2018 00:00	Uenodai	Japan	0.1
	08 Aug 2018 22:00	Ko	Japan	0.1
	08 Aug 2018 22:00	Tateyama	Japan	0.1
	08 Aug 2018 22:00	Olo	Japan	0.1
	08 Aug 2018 22:00	Kokubu	Japan	0.1
	09 Aug 2018 00:00	Ishinomaki	Japan	0.1
	09 Aug 2018 00:00	Moto-Funaba	Japan	0.1
	08 Aug 2018 20:00	Kamogawa	Japan	0.1
	09 Aug 2018 00:00	Tsukihama	Japan	0.1
	09 Aug 2018 00:00	Hamaichi	Japan	0.1
	09 Aug 2018 00:00	Bogoya	Japan	0.1
	09 Aug 2018 00:00	Ono	Japan	0.1
	09 Aug 2018 00:00	Takagi	Japan	0.1
	08 Aug 2018 20:00	Shiramazu	Japan	0.1
	08 Aug 2018 20:00	Okawa	Japan	0.1
	08 Aug 2018 20:00	Chikura	Japan	0.1
	09 Aug 2018 00:00	Sumiyoshi	Japan	0.1
	08 Aug 2018 05:00	Mitsune	Japan	0.1
	08 Aug 2018 05:00	Kashitate	Japan	0.1
	08 Aug 2018 05:00	Nakanogo	Japan	0.1
	08 Aug 2018 05:00	Sueyoshi	Japan	0.1
	08 Aug 2018 22:00	Kembutsu	Japan	0.1
	08 Aug 2018 18:00	Fugiwara	Japan	0.1
	08 Aug 2018 18:00	Nemoto	Japan	0.1
	08 Aug 2018 20:00	Kanamaru	Japan	0.1
	08 Aug 2018 20:00	Hongo	Japan	0.1
	08 Aug 2018 20:00	Hara	Japan	0.1
	08 Aug 2018 20:00	Seto	Japan	0.1
	08 Aug 2018 18:00	Kubo	Japan	0.1
	08 Aug 2018 18:00	Shirako	Japan	0.1
	08 Aug 2018 20:00	Wada	Japan	0.1
	09 Aug 2018 00:00	Namie	Japan	0.1
	09 Aug 2018 00:00	Schiogama	Japan	0.1
	09 Aug 2018 00:00	Takaki	Japan	0.1
	08 Aug 2018 21:00	Konuma	Japan	0.1