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 157 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

157 km/h Current

Up to 930000 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

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
13 06 Aug 2018 06:00 Category 2 157 2200 people no people 27.5, 145.6
GREEN
13 06 Aug 2018 18:00 Category 2 157 10000 people no people 29.3, 144.5
GREEN
13 07 Aug 2018 06:00 Category 1 148 13000 people no people 30.9, 143.4
GREEN
13 07 Aug 2018 18:00 Category 1 139 48.3 million people 210000 people 32.1, 142.3 Japan
GREEN
13 08 Aug 2018 18:00 Category 1 120 54.3 million people 930000 people 34.6, 140.7 Japan
GREEN
13 09 Aug 2018 18:00 Tropical storm 102 4.8 million people no people 38.2, 143.7 Japan
GREEN
13 10 Aug 2018 18:00 Tropical storm 83 no people no people 42.3, 152.3
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
Tateyama Chiba Japan City 49000 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 -
Omigawa Chiba Japan City 25000 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)
Tateyama 3 0

Ports

Name LOCODE Country
Katsuura Ko Japan
Tateyama JPTTY Japan
Choshi JPCHO Japan
Kashima JPKSM Japan

Dams

Reservoir Dam Name River Year
Kameyamako Kameyama Obitsugawa 1980
Takatakiko Takataki Yorogawa 1990

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 (185 locations). Calculation based on advisory number 13 of 05 Aug 2018 18:00:00 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 Okunoya Japan  0.4
09 Aug 2018 01:00 Yatabe Japan  0.4
08 Aug 2018 20:00 Ichinomiya Japan  0.4
08 Aug 2018 19:00 Katakai Japan  0.4
09 Aug 2018 01:00 Kashima Japan  0.4
09 Aug 2018 00:00 Kyuchu Japan  0.4
09 Aug 2018 00:00 Koya Japan  0.4
08 Aug 2018 18:00 Hasunuma Japan  0.4
09 Aug 2018 01:00 Omi Japan  0.3
09 Aug 2018 01:00 Hamatsuga Japan  0.3
09 Aug 2018 00:00 Aotsuka Japan  0.3
08 Aug 2018 18:00 Ohara Japan  0.3
09 Aug 2018 01:00 Taiyo Japan  0.3
09 Aug 2018 01:00 Dainigorisawa Japan  0.3
09 Aug 2018 01:00 Muyokama Japan  0.3
09 Aug 2018 01:00 Kyochikama Japan  0.3
09 Aug 2018 02:00 Tokawacho Japan  0.3
09 Aug 2018 01:00 Otake Japan  0.3
08 Aug 2018 19:00 Katsuura Japan  0.3
09 Aug 2018 02:00 Natsumi Japan  0.3
09 Aug 2018 01:00 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
08 Aug 2018 23:00 Inuwaka Japan  0.3
09 Aug 2018 00:00 Kamigama Japan  0.3
09 Aug 2018 02:00 Nagasuna Japan  0.3
09 Aug 2018 02:00 Nakaminato Japan  0.3
08 Aug 2018 19:00 Asahi Yokaichiba 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
09 Aug 2018 02:00 Narusawa Japan  0.3
09 Aug 2018 02:00 Moto-Kawarago Japan  0.3
09 Aug 2018 10:00 Komagamine Japan  0.3
09 Aug 2018 10:00 Nakumura Japan  0.3
09 Aug 2018 10:00 Tsurishi Japan  0.3
09 Aug 2018 10:00 Haragama Japan  0.3
09 Aug 2018 03:00 Asahi Japan  0.2
09 Aug 2018 03:00 Oyagaw Japan  0.2
09 Aug 2018 02:00 Hitachi Japan  0.2
09 Aug 2018 09:00 Sakamoto Japan  0.2
09 Aug 2018 09:00 Iso Japan  0.2
09 Aug 2018 08:00 Kiyohashi Japan  0.2
09 Aug 2018 08:00 Onaba Japan  0.2
09 Aug 2018 09:00 Tachiya Japan  0.2
09 Aug 2018 09:00 Umekawa Japan  0.2
09 Aug 2018 09:00 Isobe Japan  0.2
09 Aug 2018 04:00 Ogitsu Japan  0.2
09 Aug 2018 04:00 Tomobe Japan  0.2
09 Aug 2018 04:00 Kawaziri Japan  0.2
09 Aug 2018 04:00 Kawajiri Japan  0.2
09 Aug 2018 04:00 Hama Japan  0.2
09 Aug 2018 07:00 Ohahama Japan  0.2
09 Aug 2018 07:00 Ena Japan  0.2
09 Aug 2018 07:00 Shimo-Takaku Japan  0.2
09 Aug 2018 07:00 Toyoma Japan  0.2
09 Aug 2018 04:00 Kubota Japan  0.2
09 Aug 2018 04:00 Ueda Japan  0.2
09 Aug 2018 04:00 Terashita Japan  0.2
09 Aug 2018 04:00 Hirakata Japan  0.2
09 Aug 2018 08:00 Naraha Japan  0.2
09 Aug 2018 07:00 Kami-Asamigawa Japan  0.2
09 Aug 2018 08:00 Kami-Shigeoka Japan  0.2
09 Aug 2018 07:00 Ide Japan  0.2
09 Aug 2018 07:00 Shimo-Kitabo Japan  0.2
09 Aug 2018 08:00 Tomioka Japan  0.2
09 Aug 2018 08:00 Oragahama Japan  0.2
09 Aug 2018 09:00 Namie Japan  0.2
09 Aug 2018 09:00 Odaka Japan  0.2
09 Aug 2018 09:00 Takahira Japan  0.2
09 Aug 2018 09:00 Minami-Ibi Japan  0.2
09 Aug 2018 02:00 Tajirihama Japan  0.2
09 Aug 2018 06:00 Aratame Japan  0.2
09 Aug 2018 09:00 Kayahama Japan  0.2
09 Aug 2018 06:00 Omori Japan  0.2
09 Aug 2018 06:00 Arayashik Japan  0.2
09 Aug 2018 06:00 Yotsukura Japan  0.2
09 Aug 2018 04:00 Kitakubo Japan  0.2
09 Aug 2018 04:00 Kisara Japan  0.2
09 Aug 2018 04:00 Ono-Yasashi Japan  0.2
09 Aug 2018 04:00 Isohara Japan  0.2
09 Aug 2018 04:00 Yunami Japan  0.2
09 Aug 2018 04:00 Shuku Japan  0.2
09 Aug 2018 08:00 Yamashita Japan  0.2
09 Aug 2018 08:00 Yokoyama Japan  0.2
09 Aug 2018 08:00 Futaba Japan  0.2
09 Aug 2018 08:00 Kasano Japan  0.2
09 Aug 2018 08:00 Hanagama Japan  0.2
09 Aug 2018 04:00 Tanebe Japan  0.2
09 Aug 2018 04:00 Obama Japan  0.2
09 Aug 2018 05:00 Onahama Japan  0.2
09 Aug 2018 08:00 Shibamachi Japan  0.2
09 Aug 2018 08:00 Warabi Japan  0.2
09 Aug 2018 08:00 Kaikomba Japan  0.2
09 Aug 2018 08:00 Arahama Japan  0.2
09 Aug 2018 08:00 Kabasaki Japan  0.2
09 Aug 2018 09:00 Watari Japan  0.2
09 Aug 2018 09:00 Hayakawa Japan  0.2
09 Aug 2018 09:00 Kashima Japan  0.2
09 Aug 2018 08:00 Sangenchaya Japan  0.2
09 Aug 2018 08:00 Ninokura Japan  0.2
09 Aug 2018 01:00 Soeno Japan  0.2
09 Aug 2018 08:00 Shimo-Masuda Japan  0.2
09 Aug 2018 08:00 Ainokama Japan  0.2
09 Aug 2018 08:00 Kita-Kama Japan  0.2
08 Aug 2018 18:00 Kamogawa Japan  0.2
09 Aug 2018 06:00 Fujitsuka Japan  0.1
09 Aug 2018 06:00 Ido Japan  0.1
08 Aug 2018 20:00 Ko Japan  0.1
08 Aug 2018 20:00 Tateyama Japan  0.1
08 Aug 2018 20:00 Olo Japan  0.1
08 Aug 2018 20:00 Kokubu Japan  0.1
08 Aug 2018 18:00 Shiramazu Japan  0.1
08 Aug 2018 18:00 Okawa Japan  0.1
08 Aug 2018 18:00 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 18:00 Chikura Japan  0.1
08 Aug 2018 18:00 Hara Japan  0.1
08 Aug 2018 18:00 Katsuyama Japan  0.1
08 Aug 2018 18:00 Nemoto Japan  0.1
08 Aug 2018 18:00 Hongo Japan  0.1
09 Aug 2018 06:00 Bogoya Japan  0.1
08 Aug 2018 18:00 Sunosaki Japan  0.1
08 Aug 2018 18:00 Wada Japan  0.1
09 Aug 2018 06:00 Fukanuma Japan  0.1
09 Aug 2018 05:00 Shinhama Japan  0.1
09 Aug 2018 05:00 Wada-Shinden Japan  0.1
09 Aug 2018 05:00 Gamo Japan  0.1
09 Aug 2018 05:00 Shobudahama Japan  0.1
09 Aug 2018 05:00 Shiogama Japan  0.1
09 Aug 2018 05:00 Sumiyoshi Japan  0.1
08 Aug 2018 20:00 Kembutsu Japan  0.1
08 Aug 2018 18:00 Fugiwara Japan  0.1
08 Aug 2018 18:00 Kanamaru Japan  0.1
08 Aug 2018 19:00 Konuma Japan  0.1
09 Aug 2018 05:00 Tago Japan  0.1
09 Aug 2018 05:00 Niida Japan  0.1
09 Aug 2018 05:00 Umenomiya-Jutaku Japan  0.1
09 Aug 2018 06:00 Uenodai Japan  0.1
09 Aug 2018 15:00 Yoriiso Japan  0.1
09 Aug 2018 15:00 Terama Japan  0.1
08 Aug 2018 13:00 Ako Japan  0.1
08 Aug 2018 13:00 Higashiyama Japan  0.1
08 Aug 2018 13:00 Okubo Japan  0.1
08 Aug 2018 13:00 Kamitsuki Japan  0.1
08 Aug 2018 13:00 Tsubota Japan  0.1
08 Aug 2018 13:00 Gebano Japan  0.1
08 Aug 2018 13:00 Mlike Japan  0.1
08 Aug 2018 14:00 Sato Japan  0.1
08 Aug 2018 14:00 Nango Japan  0.1
09 Aug 2018 05:00 Goi Japan  0.1
09 Aug 2018 08:00 Anegasaki 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
09 Aug 2018 14:00 Ikenohama Japan  0.1
09 Aug 2018 14:00 Aji Japan  0.1
09 Aug 2018 14:00 Futawatashi Japan  0.1
09 Aug 2018 14:00 Ayukawahama Japan  0.1
09 Aug 2018 14:00 Oshika Japan  0.1
09 Aug 2018 16:00 Funagoshi Japan  0.1
09 Aug 2018 15:00 Tatsuhama Japan  0.1
09 Aug 2018 16:00 Ohama Japan  0.1
09 Aug 2018 14:00 Tomari Japan  0.1
09 Aug 2018 15:00 Izushima Japan  0.1
09 Aug 2018 15:00 Kuwahama Japan  0.1
09 Aug 2018 15:00 Kumazawa Japan  0.1
09 Aug 2018 16:00 Osu Japan  0.1
09 Aug 2018 02:00 Kimitsu Japan  0.1
09 Aug 2018 13:00 Shizugawa Japan  0.1
09 Aug 2018 13:00 Aratohama Japan  0.1
09 Aug 2018 13:00 Terahama Japan  0.1
09 Aug 2018 13:00 Onagawahama Japan  0.1
09 Aug 2018 13:00 Ommaehama Japan  0.1
09 Aug 2018 14:00 Yagawa Japan  0.1
09 Aug 2018 14:00 Samenoura Japan  0.1
09 Aug 2018 14:00 Ogatsu Japan  0.1
09 Aug 2018 13:00 Kodaki Japan  0.1
09 Aug 2018 13:00 Ozashi Japan  0.1
09 Aug 2018 14:00 Niiyama Japan  0.1