Overall Green alert Tropical Cyclone for SHANSHAN-18
in Japan
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alert for storm surge impact based on HWRF 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: 111 Km/h
he maximum Storm surge height is:The tropical cyclone did not reach sufficient strength to cause significant storm surge or is not predicted to affect populated places.

Storm surge

View animation and affected locations in an interactive map: open

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

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
20180802.18 123 km/h (76 mph) No people affected
2
GREEN
20180803.00 145 km/h (90 mph) No people affected
3
GREEN
20180803.06 153 km/h (95 mph) No people affected
4
GREEN
20180803.12 176 km/h (109 mph) No people affected
5
GREEN
20180803.18 157 km/h (97 mph) No people affected
6
GREEN
20180804.00 183 km/h (113 mph) No people affected
7
GREEN
20180804.06 192 km/h (119 mph) No people affected
8
GREEN
20180804.12 73 km/h (45 mph) No people
Japan
9
GREEN
20180804.18 117 km/h (72 mph) No people
Japan
10
GREEN
20180805.00 97 km/h (60 mph) No people
Japan
11
GREEN
20180805.06 113 km/h (70 mph) No people
Japan
12
GREEN
20180805.12 101 km/h (63 mph) No people
Japan
13
GREEN
20180805.18 110 km/h (68 mph) No people
Japan
14
GREEN
20180806.00 111 km/h (69 mph) No people
Japan

Affected locations

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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.