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 0.6 m (09 Aug 06:00 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 157 km/h 0.6 m n.a. 0.5
GDACS Overall 176 km/h 0.6 m n.a. 0.5

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

Wind

157 km/h Current

Up to 640000 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

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
11 05 Aug 2018 18:00 Category 1 148 2200 people no people 25.7, 146.9
GREEN
11 06 Aug 2018 06:00 Category 2 157 2200 people no people 27.7, 145.8
GREEN
11 06 Aug 2018 18:00 Category 2 157 10000 people no people 29.3, 144.8
GREEN
11 07 Aug 2018 06:00 Category 1 148 38 million people no people 31, 143.7 Japan
GREEN
11 08 Aug 2018 06:00 Category 1 130 48.4 million people 640000 people 33.4, 141.3 Japan
GREEN
11 09 Aug 2018 06:00 Tropical storm 102 50.6 million people no people 35.7, 141.2 Japan
GREEN
11 10 Aug 2018 06:00 Tropical storm 83 no people no people 39.5, 146.4
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
Katakai Chiba Japan City -
Choshi Chiba Japan City 83000 people
Naruto Chiba Japan City 22000 people
Tako Chiba Japan City -
Omigawa Chiba Japan City 25000 people

Critical infrastructure

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

Ports

Name LOCODE Country
Choshi JPCHO Japan
Kashima JPKSM Japan

Dams

Reservoir Dam Name River Year
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

0.6 m

The maximum Storm surge height is  0.6m in Choshi, Japan. This height is estimated for 09 Aug 2018 06:00 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 (149 locations). Calculation based on advisory number 11 of 05 Aug 2018 06:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
09 Aug 2018 06:00 Choshi Japan  0.6
09 Aug 2018 06:00 Kashima Japan  0.6
09 Aug 2018 06:00 Yatabe Japan  0.5
09 Aug 2018 06:00 Okunoya Japan  0.5
09 Aug 2018 06:00 Kyuchu Japan  0.4
09 Aug 2018 06:00 Koya Japan  0.4
09 Aug 2018 06:00 Omi Japan  0.4
09 Aug 2018 06:00 Hamatsuga Japan  0.4
09 Aug 2018 06:00 Aotsuka Japan  0.4
09 Aug 2018 06:00 Taiyo Japan  0.4
09 Aug 2018 06:00 Dainigorisawa Japan  0.4
09 Aug 2018 06:00 Muyokama Japan  0.4
09 Aug 2018 06:00 Kyochikama Japan  0.4
09 Aug 2018 06:00 Otake Japan  0.4
09 Aug 2018 06:00 Hokota Japan  0.4
09 Aug 2018 06:00 Katsuori Japan  0.4
09 Aug 2018 06:00 Natsumi Japan  0.4
09 Aug 2018 06:00 Noda Japan  0.4
08 Aug 2018 22:00 Ichinomiya Japan  0.3
09 Aug 2018 06:00 Ogushi Japan  0.3
09 Aug 2018 06:00 Kamigama Japan  0.3
09 Aug 2018 04:00 Tokawacho Japan  0.3
09 Aug 2018 04:00 Inuwaka Japan  0.3
09 Aug 2018 06:00 Nagasuna Japan  0.3
09 Aug 2018 06:00 Nakaminato Japan  0.3
09 Aug 2018 06:00 Shirane Japan  0.3
09 Aug 2018 06:00 Toyooka Japan  0.3
09 Aug 2018 06:00 Kuji Japan  0.3
09 Aug 2018 06:00 Mizuki Japan  0.3
08 Aug 2018 21:00 Katakai Japan  0.3
09 Aug 2018 06:00 Narusawa Japan  0.3
09 Aug 2018 06:00 Moto-Kawarago Japan  0.3
09 Aug 2018 06:00 Asahi Japan  0.3
09 Aug 2018 06:00 Oyagaw Japan  0.3
09 Aug 2018 06:00 Hitachi Japan  0.3
09 Aug 2018 06:00 Ogitsu Japan  0.3
09 Aug 2018 06:00 Tomobe Japan  0.3
09 Aug 2018 06:00 Tajirihama Japan  0.3
09 Aug 2018 06:00 Kawaziri Japan  0.3
09 Aug 2018 06:00 Kawajiri Japan  0.3
09 Aug 2018 06:00 Hama Japan  0.3
08 Aug 2018 20:00 Hasunuma Japan  0.3
08 Aug 2018 20:00 Ohara Japan  0.2
09 Aug 2018 06:00 Kubota Japan  0.2
09 Aug 2018 06:00 Ueda Japan  0.2
09 Aug 2018 06:00 Terashita Japan  0.2
09 Aug 2018 06:00 Hirakata Japan  0.2
08 Aug 2018 20:00 Katsuura Japan  0.2
09 Aug 2018 06:00 Kitakubo Japan  0.2
09 Aug 2018 06:00 Kisara Japan  0.2
09 Aug 2018 06:00 Ono-Yasashi Japan  0.2
09 Aug 2018 06:00 Isohara Japan  0.2
09 Aug 2018 06:00 Shuku Japan  0.2
09 Aug 2018 06:00 Yunami Japan  0.2
09 Aug 2018 06:00 Soeno Japan  0.2
09 Aug 2018 06:00 Tanebe Japan  0.2
09 Aug 2018 06:00 Obama Japan  0.2
09 Aug 2018 06:00 Onahama Japan  0.2
09 Aug 2018 06:00 Ohahama Japan  0.2
09 Aug 2018 06:00 Ena Japan  0.2
09 Aug 2018 06:00 Aratame Japan  0.2
09 Aug 2018 06:00 Shimo-Takaku Japan  0.2
09 Aug 2018 06:00 Omori Japan  0.2
09 Aug 2018 06:00 Toyoma Japan  0.2
08 Aug 2018 23:00 Asahi Yokaichiba Japan  0.2
09 Aug 2018 06:00 Naraha Japan  0.2
09 Aug 2018 06:00 Kami-Shigeoka Japan  0.2
09 Aug 2018 06:00 Ide Japan  0.2
09 Aug 2018 06:00 Kami-Asamigawa Japan  0.2
09 Aug 2018 06:00 Shimo-Kitabo Japan  0.2
09 Aug 2018 06:00 Tomioka Japan  0.2
09 Aug 2018 06:00 Oragahama Japan  0.2
09 Aug 2018 06:00 Komagamine Japan  0.2
09 Aug 2018 06:00 Nakumura Japan  0.2
09 Aug 2018 06:00 Tsurishi Japan  0.2
09 Aug 2018 06:00 Tachiya Japan  0.2
09 Aug 2018 06:00 Haragama Japan  0.2
09 Aug 2018 06:00 Umekawa Japan  0.2
09 Aug 2018 06:00 Isobe Japan  0.2
09 Aug 2018 06:00 Arayashik Japan  0.2
09 Aug 2018 06:00 Yotsukura Japan  0.2
09 Aug 2018 06:00 Onaba Japan  0.2
09 Aug 2018 06:00 Kiyohashi Japan  0.2
09 Aug 2018 06:00 Sakamoto Japan  0.2
09 Aug 2018 06:00 Iso Japan  0.2
09 Aug 2018 06:00 Futaba Japan  0.2
09 Aug 2018 06:00 Kasano Japan  0.1
09 Aug 2018 06:00 Hanagama Japan  0.1
09 Aug 2018 06:00 Takahira Japan  0.1
09 Aug 2018 06:00 Kayahama Japan  0.1
09 Aug 2018 06:00 Yamashita Japan  0.1
09 Aug 2018 06:00 Yokoyama Japan  0.1
09 Aug 2018 06:00 Shibamachi Japan  0.1
09 Aug 2018 06:00 Warabi Japan  0.1
09 Aug 2018 06:00 Kaikomba Japan  0.1
09 Aug 2018 06:00 Arahama Japan  0.1
09 Aug 2018 06:00 Kabasaki Japan  0.1
09 Aug 2018 06:00 Minami-Ibi Japan  0.1
09 Aug 2018 06:00 Sangenchaya Japan  0.1
09 Aug 2018 06:00 Ninokura Japan  0.1
09 Aug 2018 06:00 Odaka 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
09 Aug 2018 06:00 Ido Japan  0.1
09 Aug 2018 00:00 Ko Japan  0.1
09 Aug 2018 00:00 Tateyama Japan  0.1
09 Aug 2018 00:00 Olo Japan  0.1
09 Aug 2018 00:00 Kokubu Japan  0.1
09 Aug 2018 06:00 Watari Japan  0.1
09 Aug 2018 06:00 Hayakawa Japan  0.1
09 Aug 2018 06:00 Kashima Japan  0.1
09 Aug 2018 06:00 Sumiyoshi Japan  0.1
09 Aug 2018 06:00 Bogoya Japan  0.1
08 Aug 2018 19:00 Kamogawa Japan  0.1
09 Aug 2018 06:00 Shinhama Japan  0.1
09 Aug 2018 06:00 Wada-Shinden Japan  0.1
09 Aug 2018 06:00 Gamo Japan  0.1
09 Aug 2018 06:00 Tago Japan  0.1
09 Aug 2018 06:00 Niida Japan  0.1
09 Aug 2018 06:00 Shobudahama Japan  0.1
09 Aug 2018 06:00 Shiogama Japan  0.1
08 Aug 2018 06:00 Mitsune Japan  0.1
08 Aug 2018 06:00 Kashitate Japan  0.1
08 Aug 2018 06:00 Nakanogo Japan  0.1
08 Aug 2018 06:00 Sueyoshi Japan  0.1
08 Aug 2018 10:00 Ako Japan  0.1
08 Aug 2018 10:00 Higashiyama Japan  0.1
08 Aug 2018 10:00 Okubo Japan  0.1
08 Aug 2018 10:00 Kamitsuki Japan  0.1
08 Aug 2018 10:00 Tsubota Japan  0.1
08 Aug 2018 10:00 Gebano Japan  0.1
08 Aug 2018 10:00 Mlike Japan  0.1
08 Aug 2018 10:00 Sato Japan  0.1
08 Aug 2018 10:00 Nango Japan  0.1
09 Aug 2018 06:00 Fukanuma Japan  0.1
09 Aug 2018 06:00 Umenomiya-Jutaku Japan  0.1
09 Aug 2018 06:00 Uenodai Japan  0.1
09 Aug 2018 06:00 Tsukihama Japan  0.1
09 Aug 2018 06:00 Ono Japan  0.1
09 Aug 2018 06:00 Takagi Japan  0.1
09 Aug 2018 06:00 Hamaichi Japan  0.1
08 Aug 2018 16:00 Shiramazu Japan  0.1
08 Aug 2018 16:00 Okawa Japan  0.1
08 Aug 2018 16:00 Seto Japan  0.1
08 Aug 2018 16:00 Chikura Japan  0.1
08 Aug 2018 16:00 Kubo Japan  0.1
08 Aug 2018 16:00 Shirako Japan  0.1