Fengshen gradually weakened while approaching Japan, and it crossed over the country's Ōsumi Islands on July 25 as a severe tropical storm.

After affecting Japan, Fengshen weakened in the Yellow Sea to a tropical depression, before moving across China's Shandong Peninsula and dissipating on July 28.

[2] By that time, the system consisted of a distinct circulation with developing convection, located in an area of weak wind shear.

[2] On July 16, Fengshen turned sharply westward due to a subtropical ridge to its northwest, and it maintained that movement for the next four days.

[2] By late on July 18, the JMA estimated that Fengshen attained maximum sustained winds of 185 km/h (115 mph 10‑minute),[1] around the same time the JTWC upgraded the storm to a super typhoon.

[1] The weakening was possibly due to an eyewall replacement cycle, and although previously it was a small storm, the typhoon gradually increased in size.

[5] After several days as a powerful typhoon, Fengshen began a weakening trend due to decreased outflow and dry air.

[2] On July 24, Fengshen turned more to the west while passing to the south of mainland Japan, and the next day it weakened below typhoon intensity.

After entering the Yellow Sea, Fengshen weakened into a tropical depression,[1] and on July 27 the JTWC discontinued advisories,[2] after much of the convection had dissipated.

[7] Along the coast of Kyushu, Fengshen washed a freighter onshore and split it in two,[2][8] which was traveling from New Orleans, Louisiana to Kagoshima Prefecture.