Overall Green alert Tropical Cyclone for YAGI-18
in China, Japan
alertimage

Orange 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 17 of tropical cyclone YAGI-18 issued at 10 Aug 2018 18:00:00 (GDACS Event ID 1000481). 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: 114 Km/h
he maximum Storm surge height is:  1.2m in Chaoyang, China.

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: 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
 20180808.18 69 km/h (43 mph) No people
Japan
2
GREEN
 20180809.00 67 km/h (42 mph) No people
Japan
3
GREEN
 20180809.06 69 km/h (43 mph) No people
Japan
4
GREEN
 20180809.12 71 km/h (44 mph) No people
South Korea
5
GREEN
 20180809.18 71 km/h (44 mph) No people
South Korea
6
GREEN
 20180810.00 89 km/h (55 mph) No people
China
7
GREEN
 20180810.06 79 km/h (49 mph) No people
China, Japan
8
GREEN
 20180810.12 87 km/h (54 mph) No people
China
9
GREEN
 20180810.18 112 km/h (69 mph) No people
China
10
GREEN
 20180811.00 98 km/h (60 mph) No people
China
11
GREEN
 20180811.06 94 km/h (58 mph) No people
China, Japan
12
GREEN
 20180811.12 96 km/h (59 mph) No people
China, Japan, Federated States of Micronesia
13
GREEN
 20180811.18 80 km/h (50 mph) No people
China, Japan
14
GREEN
 20180812.00 75 km/h (47 mph) No people
China, Japan, Taiwan
15
GREEN
 20180812.06 79 km/h (49 mph) No people
China, Japan, Philippines
16
GREEN
 20180812.12 85 km/h (52 mph) No people
China, Japan
17
GREEN
 20180812.18 114 km/h (70 mph) No people
China, Japan, Northern Mariana Islands

Affected locations

Alert Date (UTC) Name Country Storm surge height (m)
12 Aug 2018 21:15 Chaoyang China  1.2
12 Aug 2018 21:15 Chiu-hsiang-chen China  1.2
12 Aug 2018 21:15 Huangwan China  1.2
12 Aug 2018 21:15 Ganpu China  1.2
12 Aug 2018 21:15 Changchuanba China  1.2
12 Aug 2018 21:15 Hsi-hui-tsui China  1.2
12 Aug 2018 21:15 Ch'ien-ni China  1.2
12 Aug 2018 21:15 Hsieh-t'ang China  1.2
12 Aug 2018 21:15 Linshan China  1.2
12 Aug 2018 21:00 Chou-hung-ch'iu China  1.2
12 Aug 2018 21:00 Heng-pa-ts'un China  1.2
12 Aug 2018 20:45 Hsiung-ting-yu China  1.1
12 Aug 2018 20:45 Hsiao-an-chieh China  1.1
12 Aug 2018 20:45 Hu-chia-lu China  1.1
Locations affected by Storm surge (15 of 4006)
Calculation based on advisory number of 12 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.