Overall Green alert Tropical Cyclone for SHANSHAN-18
in Japan

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 (JTWC)
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
GDACS Current 167 km/h n.a. n.a. 0.5
GDACS 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)

Wind

167 km/h Current

Up to 5.3 million people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm
Population in
Cat. 1 or higher
Countries
Green 1 02 Aug 2018 18:00 148 1.5 million No people Japan
Green 2 03 Aug 2018 00:00 148 90 thousand No people Japan
Green 3 03 Aug 2018 06:00 148 20 thousand No people
Green 4 03 Aug 2018 12:00 167 49 million No people Japan
Green 5 03 Aug 2018 18:00 167 58.2 million No people Japan
Green 6 04 Aug 2018 00:00 167 59 million No people Japan
Green 7 04 Aug 2018 06:00 176 54.9 million 1.3 million Japan
Green 8 04 Aug 2018 12:00 176 64.4 million 230 thousand Japan
Green 9 04 Aug 2018 18:00 176 64.6 million 5.5 million Japan
Green 10 05 Aug 2018 00:00 167 69.4 million 5.4 million Japan

Bulletin Timeline

Alert Date (UTC) Category Max winds
(km/h)
Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon) Countries
GREEN
1 02 Aug 2018 18:00 Tropical depression 46 no people no people 18.6, 150.7
GREEN
2 03 Aug 2018 00:00 Tropical depression 56 no people no people 17.7, 150.4
GREEN
3 03 Aug 2018 06:00 Tropical storm 65 no people no people 18, 150.5
GREEN
4 03 Aug 2018 12:00 Tropical storm 83 no people no people 18.5, 150
GREEN
5 03 Aug 2018 18:00 Tropical storm 93 no people no people 19.3, 149.4
GREEN
6 04 Aug 2018 00:00 Tropical storm 102 no people no people 20.1, 149.2
GREEN
7 04 Aug 2018 06:00 Category 1 120 no people no people 20.8, 148.8
GREEN
8 04 Aug 2018 12:00 Category 1 130 no people no people 21.8, 148.2
GREEN
9 04 Aug 2018 18:00 Category 1 139 no people no people 22.5, 147.7
GREEN
10 05 Aug 2018 00:00 Category 1 139 no people no people 23, 147.4
GREEN
10 05 Aug 2018 12:00 Category 2 157 2200 people no people 24.7, 146.5
GREEN
10 06 Aug 2018 00:00 Category 2 167 2200 people no people 26.4, 145.6
GREEN
10 06 Aug 2018 12:00 Category 2 167 2200 people no people 28.1, 144.6
GREEN
10 07 Aug 2018 00:00 Category 2 157 4.6 million people no people 29.8, 143.5 Japan
GREEN
10 08 Aug 2018 00:00 Category 1 130 64.4 million people 5.3 million people 32.7, 141.5 Japan
GREEN
10 09 Aug 2018 00:00 Tropical storm 102 69.3 million people no people 35.4, 140.8 Japan
GREEN
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.



Exposed population

Countries

Country
Japan

Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Populated places

Name Region Province Country City class Population
Chikura Chiba Japan City -
Ohara Chiba Japan City 19000 people
Mobara Chiba Japan City 95000 people
Katakai Chiba Japan City -
Choshi Chiba Japan City 83000 people
Kisarazu Chiba Japan City 120000 people
Naruto Chiba Japan City 22000 people
Tako Chiba Japan City -
Chiba Chiba Japan Major city 910000 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 450000 people
Kamagaya Chiba Japan City 100000 people
Abiko Chiba 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)
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

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.

...

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, 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.

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