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Overall Green alert Tropical Cyclone for SHANSHAN-18
in Japanfrom 02 Aug 2018 18:00 UTC to 09 Aug 2018 12:00 UTC
Automatic impact report for tropical cyclone SHANSHAN-18
alertimage

Current Green alert for wind impact in Japan as of 09 Aug 2018 12:00:00 UTC

This tropical cyclone is expected to have a low humanitarian impact based on the storm strength and the affected population in the past and forecasted path.

Current storm status

This report is for advisory number 28 of tropical cyclone SHANSHAN-18 issued at 09 Aug 2018 12:00 UTC (GDACS Event ID 1000478, Latest episode ID: 28, inserted at 09 Aug 2018 12:35 UTC ).

Current impact estimate:

  • Population affected by Category 1 (120 km/h) wind speeds or higher is 0
  • Tropical Storm (maximum wind speed of 167 km/h)
  • Vulnerability of affected countries: Low

Impact of Extreme Wind

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  
Cloud map
Cloud map. Track and wind-buffer map. Green area: Area that can be affected by winds of more than 64 km/h (Tropical Storm strength). Orange area: Same, for winds of more than 92 km/h. Red area: Same, for winds above 120 km/h (Hurricane or Typhoon strength) (Source: JRC)
Cloud Map Zoomed on last forecast
Cloud Map Zoomed on last forecast. The zoomed map on the last track. (Source: JRC)

Affected population

Up to 2.2 million people people can be affected by wind speeds of cyclone strength or above. In addition, no people people are living in coastal areas below 5m and can therefore be affected by storm surge.

Affected country

Country
Japan

Affected provinces

Region Province Country Population
Tohoku Japan 9.9 million people
Kanto Japan 38.5 million people

Affected Populated Places (first 20 records)

Name Region Province Country City class Population Distance
Taira Fukushima Japan City - 170 km
Onahama Fukushima Japan City - 179 km
Ueda Fukushima Japan City - 190 km
Hitachi Ibaraki Japan City 180000 people 218 km
Kuji Ibaraki Japan City 35000 people 229 km
Choshi Chiba Japan City 83000 people 279 km
Omigawa Chiba Japan City 25000 people 279 km
Tako Chiba Japan City - 298 km
Narita Chiba Japan City 100000 people 303 km
Naruto Chiba Japan City 22000 people 313 km
Katakai Chiba Japan City - 318 km
Mobara Chiba Japan City 95000 people 334 km
Ohara Chiba Japan City 19000 people 345 km

Critical infrastructure

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

Nearby and affected airports
Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Hyakuri 32 Mil. Paved Yes 8800 265 km
Tokyo Narita International NRT 42 Civ. Paved Yes 13100 300 km
Major ports
Name LOCODE Country Distance
Onahama JPONA Japan 178 km
Hitachi JPHTC Japan 227 km
Kashima JPKSM Japan 271 km
Choshi JPCHO Japan 278 km
Hydro-dams
Reservoir Dam Name River Year Distance
Kasumigaura Kasumigaura-Kaihatsu Tonegawa 1995 276 km

See complete report

Event time line

The storm evolution is shown in the table below. Alert levels and population estimates are related to the area from a point to the next.

Advisory Alert color Date (UTC) Category Wind speed Wind gusts Population affected
by cyclone winds (>120km/h)
Location (lat, lon)
1
GREEN
02 Aug 2018 18:00 Tropical depression 46 km/h (29 mph) km/h ( mph) no people 18.6, 150.7
2
GREEN
03 Aug 2018 00:00 Tropical depression 56 km/h (34 mph) km/h ( mph) no people 17.7, 150.4
3
GREEN
03 Aug 2018 06:00 Tropical storm 65 km/h (40 mph) km/h ( mph) no people 18, 150.5
4
GREEN
03 Aug 2018 12:00 Tropical storm 83 km/h (52 mph) km/h ( mph) no people 18.5, 150
5
GREEN
03 Aug 2018 18:00 Tropical storm 93 km/h (57 mph) km/h ( mph) no people 19.3, 149.4
6
GREEN
04 Aug 2018 00:00 Tropical storm 102 km/h (63 mph) km/h ( mph) no people 20.1, 149.2
7
GREEN
04 Aug 2018 06:00 Category 1 120 km/h (75 mph) km/h ( mph) no people 20.8, 148.8
8
GREEN
04 Aug 2018 12:00 Category 1 130 km/h (80 mph) km/h ( mph) no people 21.8, 148.2
9
GREEN
04 Aug 2018 18:00 Category 1 139 km/h (86 mph) km/h ( mph) no people 22.5, 147.7
10
GREEN
05 Aug 2018 00:00 Category 1 139 km/h (86 mph) km/h ( mph) no people 23, 147.4
11
GREEN
05 Aug 2018 06:00 Category 1 139 km/h (86 mph) km/h ( mph) no people 24, 147.5
12
GREEN
05 Aug 2018 12:00 Category 1 148 km/h (92 mph) km/h ( mph) no people 24.7, 147.1
13
GREEN
05 Aug 2018 18:00 Category 1 148 km/h (92 mph) km/h ( mph) no people 25.7, 146.6
14
GREEN
06 Aug 2018 00:00 Category 1 148 km/h (92 mph) km/h ( mph) no people 26.5, 146.2
15
GREEN
06 Aug 2018 06:00 Category 1 148 km/h (92 mph) km/h ( mph) no people 27.5, 146.1
16
GREEN
06 Aug 2018 12:00 Category 1 130 km/h (80 mph) km/h ( mph) no people 28.8, 145.6
17
GREEN
06 Aug 2018 18:00 Category 1 120 km/h (75 mph) km/h ( mph) no people 29.7, 145
18
GREEN
07 Aug 2018 00:00 Category 1 130 km/h (80 mph) km/h ( mph) no people 30.5, 144.3
19
GREEN
07 Aug 2018 06:00 Category 2 167 km/h (103 mph) km/h ( mph) no people 31.3, 143.9
20
GREEN
07 Aug 2018 12:00 Category 2 157 km/h (98 mph) km/h ( mph) no people 32, 143.1
21
GREEN
07 Aug 2018 18:00 Category 2 157 km/h (98 mph) km/h ( mph) no people 32.5, 142.3
22
GREEN
08 Aug 2018 00:00 Category 1 148 km/h (92 mph) km/h ( mph) 78000 people 33.4, 141.8
23
GREEN
08 Aug 2018 06:00 Category 1 148 km/h (92 mph) km/h ( mph) 3.8 million people 33.8, 141.3
24
GREEN
08 Aug 2018 12:00 Category 1 130 km/h (80 mph) km/h ( mph) 62000 people 34.5, 141.3
25
GREEN
08 Aug 2018 18:00 Category 1 130 km/h (80 mph) km/h ( mph) 740000 people 35.3, 141.1
26
GREEN
09 Aug 2018 00:00 Category 1 120 km/h (75 mph) km/h ( mph) 1 million people 36.3, 141
27
GREEN
09 Aug 2018 06:00 Tropical storm 102 km/h (63 mph) km/h ( mph) no people 37.4, 141.7
28
GREEN
09 Aug 2018 12:00 Tropical storm 83 km/h (52 mph) km/h ( mph) no people 37.8, 142.6
28
GREEN
10 Aug 2018 00:00 Tropical storm 74 km/h (46 mph) km/h ( mph) no people 39.6, 146.7
28
GREEN
10 Aug 2018 12:00 Tropical storm 65 km/h (40 mph) km/h ( mph) no people 41, 153.5

Previous advisories

For accessing reports of previous advisories, please click on the advisory number in the table below.

IDAlert ColorDate (UTC)CategoryMaximum sustained
wind speed (km/h)
Population affected
by cyclone winds (>120km/h)
Affected countries
1 02 Aug 2018 18:00 Category 1 148 No people affected Japan
2 03 Aug 2018 00:00 Category 1 148 No people affected Japan
3 03 Aug 2018 06:00 Category 1 148 No people affected  
4 03 Aug 2018 12:00 Category 2 167 No people affected Japan
5 03 Aug 2018 18:00 Category 2 167 No people affected Japan
6 04 Aug 2018 00:00 Category 2 167 No people affected Japan
7 04 Aug 2018 06:00 Category 2 176 1.3 million Japan
8 04 Aug 2018 12:00 Category 2 176 230 thousand Japan
9 04 Aug 2018 18:00 Category 2 176 5.5 million Japan
10 05 Aug 2018 00:00 Category 2 167 5.4 million Japan
11 05 Aug 2018 06:00 Category 2 157 650 thousand Japan
12 05 Aug 2018 12:00 Category 2 157 5.7 million Japan
13 05 Aug 2018 18:00 Category 2 157 940 thousand Japan
14 06 Aug 2018 00:00 Category 1 148 2.1 million Japan
15 06 Aug 2018 06:00 Category 1 148 430 thousand Japan
16 06 Aug 2018 12:00 Category 1 130 No people affected Japan, Russian Federation
17 06 Aug 2018 18:00 Category 1 120 No people affected Japan, United States
18 07 Aug 2018 00:00 Category 1 130 No people affected Japan, Russian Federation
19 07 Aug 2018 06:00 Category 2 167 4.6 million Japan
20 07 Aug 2018 12:00 Category 2 157 1 million Japan
21 07 Aug 2018 18:00 Category 2 157 2.1 million Japan
22 08 Aug 2018 00:00 Category 1 148 4.6 million Japan
23 08 Aug 2018 06:00 Category 1 148 5.6 million Japan
24 08 Aug 2018 12:00 Category 1 130 60 thousand Japan
25 08 Aug 2018 18:00 Category 1 130 740 thousand Japan
26 09 Aug 2018 00:00 Category 1 120 1.9 million Japan
27 09 Aug 2018 06:00 Tropical storm 102 2.3 million Japan
28 09 Aug 2018 12:00 Tropical storm 83 2.3 million Japan

More information

Data resources

For a full list of available products related to this event, please refer to the GDACS Resources page.

About the data

JRC set up an automatic routine that includes the Tropical Cyclone (TC) bulletins produced by the National Oceanic and Atmospheric Administration (NOAA) and the Joint Typhoon Warning Center (JTWC) into a single database, covering all TC basins.

JRC calculates areas affected by high winds (wind buffers at 39, 58 and 74mph). This is done using the maximum reported wind radius (maximum of 4 quadrants) or, in case no wind radii are provided, through a regression analysis based on historical data. JRC also calculates the area affected by storm surge using HyFlux2 (hydrodynamic software).

Sources for data on critical infrastructure are: JRC NUMAS database (nuclear plants), ESRI (hydro dams, 1996), Global Discovery (airports, ports and cities).

Population data is from LandScan 2014.

Disclaimer

While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information. The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.