Overall Green Tropical Cyclone for EIGHT-25 in Japan on 15 Jul 2025 00:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green Tropical Cyclone for EIGHT-25

in Japan

15 Jul 2025 00 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone EIGHT-25 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	Japan
Exposed population	No people in Category 1 or higher
Maximum wind speed	74 km/h
Maximum storm surge	0.8 m (15 Jul 13:00 UTC)
Vulnerability	Low (Japan)
Landfall	between 15 Jul 2025 00:00 - 15 Jul 2025 12:00 in Japan

GDACS Score

GDACS score for Tropical Cyclones is 0.5 (GREEN Level), 1.5 (ORANGE Level), 2.5 (RED Level)
For more info on GDACS core click here.

	Wind	Storm surge	Rainfall	GDACS score
Current	74 km/h	0.8 m	n.a.	0.5
Overall	74 km/h	0.8 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

74 km/h Current Max.

Up to 51.2 million people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Level	N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
	1	15 Jul 2025 00:00	74	51.2 million	No people	Japan

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)	Countries
1	15 Jul 2025 00:00	Tropical storm	65	no people	40.1 million people	29.4, 140.2
1	15 Jul 2025 12:00	Tropical storm	74	no people	51.1 million people	35.3, 140.5	Japan
1	16 Jul 2025 00:00	Tropical depression	56	no people	no people	41.4, 141.8
1	16 Jul 2025 12:00	Tropical depression	37	no people	no people	46.4, 144

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

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Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Source: GADM and GHSL

Population in Tropical Storm or higher strength
49.9 million people

Provinces

Source: GADM and GHSL

Population in Tropical Storm or higher strength
740000 people
40.4 million people
8.5 million people
220000 people

Critical infrastructure

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

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Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

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StormSurge

The JRC has developed an experimental global storm surge model. 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. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

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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.
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