Overall Green Tropical Cyclone alert for YUN-YEUNG-23 in Japan from 05 Sep 2023 12:00 UTC to 08 Sep 2023 18:00 UTC

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

Overall Green alert Tropical Cyclone for YUN-YEUNG-23

in Japan

Event summary

Tropical Cyclone YUN-YEUNG-23 can have a low humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID	TC 1001007
Name	YUN-YEUNG-23
From - To	05 Sep - 08 Sep
Exposed countries	Japan
Exposed population	No people in Category 1 or higher
Maximum wind speed	74 km/h Tropical storm
Maximum storm surge	0.3 m (08 Sep 02:00 UTC)
Vulnerability	Low (Japan)

GDACS Score

For more info on GDACS alert score click here.

	Wind	Storm surge	Rainfall	GDACS score
GDACS JTWC	46 km/h	0.3 m	n.a.	0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF	n.a	n.a.	n.a.	n.a.
GFS	94 km/h	0.8 m	480 mm	0.5
ECMWF	65 km/h	0.7 m	323 mm	0.5

Maximum expected impact (wind, storm surge and rainfall) using different data sources.

Virtual OSOCC

Meteo assessment

Satellite products

Analytical products

Japan - Tropical Cyclone YUN-YEUNG (ECHO 07 Sep 2023)Thu, 07 Sep 2023 11:54

A new tropical cyclone named YUN-YEUNG formed over the central Philippine Sea on 4 September and is moving northeast towards the central-southern coast of Honshu Island. On 7 September at 0.00 UTC, its centre was located over the sea approximately 400 km south of the central Wakayama Prefecture, Honshu Island, with maximum sustained winds of 74 km/h (tropical storm).
YUN-YEUNG is forecast to continue north-east slightly strengthening, it is forecast to pass close to the Izu Islands, and to make landfall in an area close to Tokyo on 8 September with maximum winds up to 60 km/h.
For the next 48 hours, heavy rainfall, strong winds and storm surge are forecast over Izu Islands, and central southern Honshu Island (particularly in the area of Tokyo). Heavy rain and strong wind warnings are in effect for most of the Prefectures of the aforementioned regions.

Japan - Tropical Cyclone YUN-YEUNG, update (ECHO 08 Sep 2023)Fri, 08 Sep 2023 10:37

Tropical cyclone YUN-YEUNG continued northward over the West Pacific Ocean toward the central Honshu Island on 7 September, as a tropical storm. On 8 September at 3.00 UTC, its centre was located over the Ocean approximately 170 km south of the border between Aichi and Shizuoka Prefectures, with maximum sustained winds of 83 km/h (tropical storm).
YUN-YEUNG is expected to make landfal over the Toyohashi City area (south-eastern Aichi Prefecture) on 8 September late in the morning (UTC), with maximum sustained winds up to 75 km/h. After that, it is expected to pass over the central Honshu Island on 8-9 September, further weakening.
Over the next 48 hours, heavy rainfall, strong winds and storm surges are forecast over the central and northern Honshu Island.
The Japan Meteorological Agency has issued warnings for heavy rainfall, floods and landslides over the Greater Tokyo Area and the neighbouring Chiba Prefecture. A number of preventive evacuation orders have been already issued for this area.

Japan - Tropical Cyclone YUN-YEUNG, update (ECHO 11 Sep 2023)Mon, 11 Sep 2023 11:26

The passage of the tropical storm YUN-YEUNG over the central Honshu Island, west of the Greater Tokyo area, on 8-9 September, caused very heavy rainfall, strong winds, floods and landslides that have resulted in casualties and damage.
Media reports, as of 11 September, three fatalities across Ibaraki and Chiba Prefectures. In addition, approximately 1,200 flooded buildings were reported accross the aforementioned Prefectures and the Fukushima Prefecture.
Over the next 72 hours, more rainfall is forecast over the central and western Honshu Island.

Detailed event map. European Union, 2024. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Articles: 0 | About casualties: 0 | Last hour: 0

View more news

Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Analytical products

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (40), (2), WMO (1), INFORM (2),

Disclaimer
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.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.