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

Orange alert for storm surge impact based on GFS 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: 95 Km/h
he maximum Storm surge height is:  1.4m in Yakumo, 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: GFS)

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
20180803.00 155 km/h (96 mph) No people affected
2
GREEN
20180803.06 205 km/h (127 mph) No people affected
3
GREEN
20180803.12 203 km/h (126 mph) No people affected
4
GREEN
20180803.18 198 km/h (123 mph) No people affected
5
GREEN
20180804.00 202 km/h (125 mph) No people affected
6
GREEN
20180804.06 203 km/h (125 mph) No people affected
7
GREEN
20180804.12 74 km/h (46 mph) No people
Japan
8
GREEN
20180804.18 94 km/h (58 mph) No people
Japan
9
GREEN
20180805.00 146 km/h (90 mph) Few people affected
Japan
10
GREEN
20180805.06 121 km/h (75 mph) Few people affected
Japan
11
GREEN
20180805.12 164 km/h (102 mph) 2 thousand
Japan
12
GREEN
20180805.18 158 km/h (98 mph) 8 thousand
Japan
13
GREEN
20180806.00 142 km/h (88 mph) 8 thousand
Japan
14
GREEN
20180806.06 112 km/h (70 mph) No people
Japan
15
GREEN
20180806.12 113 km/h (70 mph) No people
Japan
16
GREEN
20180806.18 98 km/h (61 mph) No people
Japan
17
GREEN
20180807.00 89 km/h (55 mph) No people
Japan
18
GREEN
20180807.06 85 km/h (53 mph) No people
Japan
19
GREEN
20180807.12 85 km/h (53 mph) No people
Japan
20
GREEN
20180807.18 95 km/h (59 mph) No people
Japan

Affected locations

Date Name Country Alert Storm surge height (m)
03 Aug 2018 13:30:00 Yakumo Japan  1.4m
03 Aug 2018 13:30:00 Kuroiwa Japan  1.4m
03 Aug 2018 13:30:00 Yamagoshi Japan  1.4m
03 Aug 2018 13:30:00 Nodaoi Japan  1.4m
03 Aug 2018 13:30:00 Ishikura Japan  1.4m
03 Aug 2018 13:30:00 Oshamambe Japan  1.3m
03 Aug 2018 13:30:00 Shizukari Japan  1.3m
03 Aug 2018 13:30:00 Rebun Japan  1.3m
03 Aug 2018 13:30:00 Toyoura Japan  1.3m
03 Aug 2018 13:30:00 Abuta Japan  1.3m
03 Aug 2018 13:45:00 Mori Japan  1.3m
03 Aug 2018 13:45:00 Sahara Japan  1.3m
03 Aug 2018 13:30:00 Date Japan  1.3m
10 Aug 2018 15:15:00 Chofu Japan  1.2m
Locations affected by Storm surge (15 of 3335)
Calculation based on advisory number of 07 Aug 2018 18:00.
(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.