The Japan Meteorological Agency (JMA) has reported that Typhoon Yun-Yeung, formed over the seas south of Japan, is expected to hit the eastern Pacific Ocean side and make landfall on Friday. As of 9 a.m. local time on Thursday, Yun-yeung was moving north-northeast over the sea south of Japan at approximately 25 km per hour.
The JMA has issued warnings of extremely heavy rain accompanied by thunder in the eastern and northern regions through Saturday. There are concerns about the formation of heavy rain clouds around the Izu Islands in the Pacific, south of Tokyo, from Thursday night through Friday morning, which could lead to mudslides, flooding in low-lying areas, and swollen rivers.
Rainfall estimates in various regions include up to 250 mm in the Tokai region and the Izu Islands in the 24 hours through Friday noon, 100 to 200 mm in Kanto-Koshin, 100 to 150 mm in the Tohoku region, and 50 to 100 mm in Tokai and the Izu Islands in the 24 hours through Saturday noon.