Tropical Storm Yun-yeung

Tropical Storm Yun-yeung (Ineng)
Yun-yeung near its peak intensity as it neared Japan on September 7
Meteorological history
FormedSeptember 4, 2023
ExtratropicalSeptember 8, 2023
DissipatedSeptember 9, 2023
Tropical storm
10-minute sustained (JMA)
Highest winds75 km/h (45 mph)
Lowest pressure998 hPa (mbar); 29.47 inHg
Tropical storm
1-minute sustained (SSHWS/JTWC)
Highest winds85 km/h (50 mph)
Lowest pressure991 hPa (mbar); 29.26 inHg
Overall effects
Fatalities3
Damage>$10 million
Areas affectedPhilippines, Japan
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Part of the 2023 Pacific typhoon season

Tropical Storm Yun-yeung, known in the Philippines as Tropical Storm Ineng was a weak tropical storm which affected Japan in early September 2023. The twentieth tropical depression and thirteenth tropical storm of the 2023 Pacific typhoon season, Yun-yeung originated in the Philippine Sea in early September. After exiting the Philippine Area of Responsibility on September 5, it developed into a depression the next day. On September 7, Yun-yeung would peak as a minimal tropical storm before making landfall in Southern Japan. It rapidly weakened once inland, and by September 9, had degenerated into a remnant low.

Despite being weak when affecting the Philippines and Japan, Yun-yeung still produced historical amounts of rainfall in Japan, causing floods and landslides to occur in Southern Japan. A total of three fatalities would be recorded, all in Chiba Prefecture. Total losses are greater than ten million according to Aon.


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