Overall Green alert Tropical Cyclone for SHANSHAN-18
in Japan
alertimage

Orange alert for storm surge impact based on ECMWF source

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.

This report is for advisory number 28 of tropical cyclone SHANSHAN-18 issued at 9 Aug 2018 12:00:00 (GDACS Event ID 1000478). However, the calculation for advisory number is not completed. Therefore, the latest available calculation is shown. All links, data, statistics and maps refer to the latest available calculation.

Summary

Population affected by cyclone-strength winds (>120km/h):No People
Saffir-Simpson Category: Tropical storm
Maximum sustained wind speed: 73 Km/h
Maximum Storm surge height is:  1.3m in Shiida, Japan.

Storm surge

View animation and affected locations in an interactive map: open

Storm surge maximum height
Storm surge maximum height (Source: JRC)
Max windspeed
Max windspeed (Source: ECMWF)

Evolution

Legend
people affected <=10000
people affected >10000 and <100000
people affected >100000


Calculation Alert color Date (UTC) Wind speed Population affected
winds(>120km/h)
TS CAT. 1 CAT. 2 CAT. 3 CAT. 4 CAT. 5 Countries
1
GREEN
20180803.00 69 km/h (42 mph) No people
Japan
2
GREEN
20180803.12 62 km/h (38 mph) No people
Japan
3
GREEN
20180804.00 66 km/h (41 mph) No people
Japan
4
GREEN
20180804.12 66 km/h (41 mph) No people
Japan
5
GREEN
20180805.00 93 km/h (58 mph) No people
Japan
6
GREEN
20180805.12 106 km/h (66 mph) No people
Japan
7
GREEN
20180806.00 86 km/h (53 mph) No people
Japan
8
GREEN
20180806.12 76 km/h (47 mph) No people
Japan
9
GREEN
20180807.00 80 km/h (50 mph) No people
Japan
10
GREEN
20180807.12 78 km/h (48 mph) No people
Japan
11
GREEN
20180808.00 73 km/h (45 mph) No people
Japan

Affected locations

Date Name Country Alert Storm surge height (m)
10 Aug 2018 15:30:00 Shiida Japan  1.3m
10 Aug 2018 15:30:00 Buzen Japan  1.3m
10 Aug 2018 15:30:00 Higashiyoshitomi Japan  1.3m
10 Aug 2018 15:30:00 Nakatsu Japan  1.3m
10 Aug 2018 15:30:00 Imazu Japan  1.3m
10 Aug 2018 15:45:00 Chofu Japan  1.3m
10 Aug 2018 15:45:00 Moji Japan  1.3m
10 Aug 2018 15:45:00 Habu Japan  1.3m
10 Aug 2018 15:45:00 Ube Japan  1.3m
10 Aug 2018 15:45:00 Yukuhashi Japan  1.3m
10 Aug 2018 15:45:00 Tokonami Japan  1.3m
10 Aug 2018 15:45:00 Kurosaki Japan  1.3m
10 Aug 2018 15:45:00 Takada Japan  1.3m
10 Aug 2018 15:45:00 Bungo-Takada Japan  1.3m
Locations affected by Storm surge (15 of 3400)
Calculation based on advisory number of 08 Aug 2018 00:00.
(Simulation using minute resolution)

See full locations list (RSS)

More information

The atmospheric forcing included in the storm surge model are the pressure drop and the wind-water friction. The effects of the short waves induced by the wind (wave setup) and the precipitations are not yet implemented in the model.

  • Interactive map: open

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