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 0.5 m (09 Aug 01:00 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 148 km/h 0.5 m n.a. 0.5
GDACS Overall 176 km/h 0.5 m n.a. 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

Wind

148 km/h Current

Up to 2 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
Green 11 05 Aug 2018 06:00 157 51.4 million 650 thousand Japan
Green 12 05 Aug 2018 12:00 157 58.2 million 5.7 million Japan
Green 13 05 Aug 2018 18:00 157 54.4 million 940 thousand Japan
Green 14 06 Aug 2018 00:00 148 51.4 million 2.1 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
11 05 Aug 2018 06:00 Category 1 139 no people no people 24, 147.5
GREEN
12 05 Aug 2018 12:00 Category 1 148 2200 people no people 24.7, 147.1
GREEN
13 05 Aug 2018 18:00 Category 1 148 2200 people no people 25.7, 146.6
GREEN
14 06 Aug 2018 00:00 Category 1 148 2200 people no people 26.5, 146.2
GREEN
14 06 Aug 2018 12:00 Category 1 148 2200 people no people 28.3, 145.2
GREEN
14 07 Aug 2018 00:00 Category 1 139 10000 people no people 30.1, 144.2
GREEN
14 07 Aug 2018 12:00 Category 1 139 7 million people no people 31.5, 143 Japan
GREEN
14 08 Aug 2018 00:00 Category 1 130 47.3 million people 2 million people 32.9, 141.8 Japan
GREEN
14 09 Aug 2018 00:00 Category 1 120 51.2 million people 2 million people 35.4, 141 Japan
GREEN
14 10 Aug 2018 00:00 Tropical storm 102 no people no people 39.5, 146.1
GREEN
14 11 Aug 2018 00:00 Tropical storm 93 no people no people 43.7, 157.1
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
Ohara Chiba Japan City 19000 people
Mobara Chiba Japan City 95000 people
Katakai Chiba Japan City -
Choshi Chiba Japan City 83000 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

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)
Shimoshizu 30 0
Tokyo Narita International NRT 42 Civ. Paved Yes 13100

Ports

Name LOCODE Country
Katsuura Ko Japan
Choshi JPCHO Japan
Goi JPGOI Japan
Kashima JPKSM Japan

Dams

Reservoir Dam Name River Year
Takatakiko Takataki Yorogawa 1990
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

0.5 m

The maximum Storm surge height is  0.5m in Choshi, Japan. This height is estimated for 09 Aug 2018 01:00 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 (167 locations). Calculation based on advisory number 14 of 06 Aug 2018 00:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
09 Aug 2018 01:00 Choshi Japan  0.5
09 Aug 2018 01:00 Yatabe Japan  0.5
09 Aug 2018 01:00 Okunoya 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
09 Aug 2018 00:00 Omi Japan  0.4
09 Aug 2018 00:00 Hamatsuga Japan  0.4
09 Aug 2018 00:00 Taiyo Japan  0.4
09 Aug 2018 00:00 Dainigorisawa Japan  0.4
09 Aug 2018 00:00 Muyokama Japan  0.4
09 Aug 2018 00:00 Kyochikama Japan  0.4
09 Aug 2018 00:00 Tokawacho Japan  0.4
09 Aug 2018 00:00 Inuwaka Japan  0.4
08 Aug 2018 22:00 Ichinomiya Japan  0.4
09 Aug 2018 00:00 Otake 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 Noda Japan  0.3
09 Aug 2018 00:00 Ogushi Japan  0.3
09 Aug 2018 01:00 Natsumi Japan  0.3
09 Aug 2018 00:00 Kamigama Japan  0.3
09 Aug 2018 01:00 Nagasuna Japan  0.3
09 Aug 2018 01:00 Nakaminato Japan  0.3
10 Aug 2018 00:00 Odaito Japan  0.3
10 Aug 2018 00:00 Tokotan Japan  0.3
09 Aug 2018 01:00 Shirane Japan  0.3
09 Aug 2018 01:00 Toyooka Japan  0.3
09 Aug 2018 01:00 Kuji Japan  0.3
09 Aug 2018 01:00 Mizuki Japan  0.3
08 Aug 2018 21:00 Katakai Japan  0.3
09 Aug 2018 01:00 Narusawa Japan  0.3
09 Aug 2018 01:00 Moto-Kawarago Japan  0.3
10 Aug 2018 00:00 Fushiko-tobuto Japan  0.3
08 Aug 2018 21:00 Hasunuma Japan  0.3
09 Aug 2018 01:00 Asahi Japan  0.3
09 Aug 2018 01:00 Oyagaw Japan  0.3
09 Aug 2018 01:00 Hitachi Japan  0.3
08 Aug 2018 19:00 Ohara Japan  0.2
09 Aug 2018 01:00 Ogitsu Japan  0.2
09 Aug 2018 01:00 Tomobe Japan  0.2
09 Aug 2018 01:00 Tajirihama Japan  0.2
09 Aug 2018 01:00 Kawaziri Japan  0.2
09 Aug 2018 01:00 Kawajiri Japan  0.2
09 Aug 2018 01:00 Hama Japan  0.2
10 Aug 2018 00:00 Bekkai Japan  0.2
10 Aug 2018 00:00 Churuigenya Japan  0.2
10 Aug 2018 00:00 Kumbetsu Japan  0.2
10 Aug 2018 00:00 Rukushibetsu Japan  0.2
09 Aug 2018 00:00 Asahi Yokaichiba Japan  0.2
09 Aug 2018 03:00 Kubota Japan  0.2
09 Aug 2018 03:00 Ueda Japan  0.2
09 Aug 2018 03:00 Terashita Japan  0.2
09 Aug 2018 03:00 Hirakata Japan  0.2
08 Aug 2018 19:00 Katsuura Japan  0.2
09 Aug 2018 09:00 Komagamine Japan  0.2
09 Aug 2018 09:00 Nakumura Japan  0.2
09 Aug 2018 09:00 Tsurishi Japan  0.2
09 Aug 2018 09:00 Haragama Japan  0.2
09 Aug 2018 05:00 Ohahama Japan  0.2
09 Aug 2018 05:00 Ena Japan  0.2
09 Aug 2018 05:00 Shimo-Takaku Japan  0.2
09 Aug 2018 05:00 Toyoma Japan  0.2
09 Aug 2018 01:00 Kitakubo Japan  0.2
09 Aug 2018 01:00 Kisara Japan  0.2
09 Aug 2018 01:00 Ono-Yasashi Japan  0.2
09 Aug 2018 01:00 Isohara Japan  0.2
09 Aug 2018 01:00 Shuku Japan  0.2
09 Aug 2018 07:00 Sakamoto Japan  0.2
09 Aug 2018 07:00 Iso Japan  0.2
09 Aug 2018 07:00 Tachiya Japan  0.2
09 Aug 2018 07:00 Umekawa Japan  0.2
09 Aug 2018 07:00 Isobe Japan  0.2
09 Aug 2018 05:00 Aratame Japan  0.2
09 Aug 2018 05:00 Naraha Japan  0.2
09 Aug 2018 05:00 Kami-Asamigawa Japan  0.2
09 Aug 2018 05:00 Kami-Shigeoka Japan  0.2
09 Aug 2018 05:00 Ide Japan  0.2
09 Aug 2018 05:00 Shimo-Kitabo Japan  0.2
09 Aug 2018 03:00 Yunami Japan  0.2
09 Aug 2018 05:00 Tomioka Japan  0.2
09 Aug 2018 07:00 Onaba Japan  0.2
09 Aug 2018 07:00 Kiyohashi Japan  0.2
09 Aug 2018 05:00 Oragahama Japan  0.2
10 Aug 2018 00:00 Onirusu Russia  0.2
09 Aug 2018 05:00 Omori Japan  0.2
09 Aug 2018 05:00 Arayashik Japan  0.2
09 Aug 2018 05:00 Yotsukura Japan  0.2
10 Aug 2018 00:00 Svetloye Japan  0.2
10 Aug 2018 00:00 Golovnino Russia  0.2
09 Aug 2018 07:00 Takahira Japan  0.2
09 Aug 2018 07:00 Kayahama Japan  0.2
10 Aug 2018 00:00 Ruchi Russia  0.2
10 Aug 2018 00:00 Protochnaya Russia  0.2
09 Aug 2018 08:00 Minami-Ibi Japan  0.2
09 Aug 2018 01:00 Soeno Japan  0.2
09 Aug 2018 02:00 Tanebe Japan  0.2
09 Aug 2018 02:00 Obama Japan  0.2
09 Aug 2018 02:00 Onahama Japan  0.2
09 Aug 2018 05:00 Futaba Japan  0.2
10 Aug 2018 00:00 Nishi-wada Japan  0.2
09 Aug 2018 07:00 Yamashita Japan  0.2
09 Aug 2018 07:00 Yokoyama Japan  0.2
09 Aug 2018 06:00 Kasano Japan  0.2
09 Aug 2018 06:00 Hanagama Japan  0.2
09 Aug 2018 07:00 Odaka Japan  0.2
09 Aug 2018 06:00 Shibamachi Japan  0.2
09 Aug 2018 06:00 Warabi Japan  0.2
09 Aug 2018 06:00 Kaikomba Japan  0.2
09 Aug 2018 06:00 Arahama Japan  0.2
09 Aug 2018 06:00 Kabasaki Japan  0.2
09 Aug 2018 21:00 Sasaki Japan  0.2
09 Aug 2018 08:00 Watari Japan  0.1
09 Aug 2018 08:00 Hayakawa Japan  0.1
09 Aug 2018 08:00 Kashima Japan  0.1
09 Aug 2018 06:00 Sangenchaya Japan  0.1
09 Aug 2018 06:00 Ninokura Japan  0.1
10 Aug 2018 00:00 Nemuro Japan  0.1
09 Aug 2018 21:00 Yokodoi Japan  0.1
09 Aug 2018 06:00 Shimo-Masuda Japan  0.1
09 Aug 2018 06:00 Ainokama Japan  0.1
09 Aug 2018 06:00 Kita-Kama Japan  0.1
09 Aug 2018 06:00 Fujitsuka Japan  0.1
10 Aug 2018 00:00 Tomoshiri Japan  0.1
10 Aug 2018 00:00 Shibetsu 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 06:00 Ido Japan  0.1
09 Aug 2018 05:00 Bogoya Japan  0.1
10 Aug 2018 00:00 Alekhino Russia  0.1
10 Aug 2018 00:00 Danilovo Russia  0.1
10 Aug 2018 00:00 Chibukarabetsu Russia  0.1
10 Aug 2018 00:00 Oshiusu Russia  0.1
10 Aug 2018 00:00 Medelevo Russia  0.1
10 Aug 2018 00:00 Mo-chirippu Japan  0.1
10 Aug 2018 00:00 Kiritappu Japan  0.1
09 Aug 2018 02:00 Sumiyoshi Japan  0.1
09 Aug 2018 06:00 Namie Japan  0.1
10 Aug 2018 00:00 Hikiushi Japan  0.1
10 Aug 2018 00:00 Moshirikeshi Russia  0.1
10 Aug 2018 00:00 Zeikomae Russia  0.1
10 Aug 2018 00:00 Akiajiba Russia  0.1
10 Aug 2018 00:00 Sunahama Russia  0.1
10 Aug 2018 00:00 Aitomari Russia  0.1
09 Aug 2018 06:00 Fukanuma Japan  0.1
09 Aug 2018 04:00 Shinhama Japan  0.1
09 Aug 2018 04:00 Wada-Shinden Japan  0.1
09 Aug 2018 04:00 Gamo Japan  0.1
09 Aug 2018 04:00 Shobudahama Japan  0.1
09 Aug 2018 04:00 Shiogama Japan  0.1
10 Aug 2018 00:00 Moraito Japan  0.1
08 Aug 2018 22:00 Wada Japan  0.1
08 Aug 2018 20:00 Kamogawa Japan  0.1
10 Aug 2018 00:00 Nassafu Japan  0.1
10 Aug 2018 00:00 Nakanokotan Russia  0.1
09 Aug 2018 02:00 Tago Japan  0.1
09 Aug 2018 02:00 Niida Japan  0.1
09 Aug 2018 02:00 Umenomiya-Jutaku Japan  0.1
09 Aug 2018 06:00 Uenodai Japan  0.1
09 Aug 2018 02:00 Tsukihama Japan  0.1
09 Aug 2018 03:00 Ono Japan  0.1
09 Aug 2018 03:00 Takagi Japan  0.1
09 Aug 2018 03:00 Hamaichi Japan  0.1
08 Aug 2018 22:00 Kembutsu Japan  0.1