Trami accelerated and turned northeastward on September 29, before it struck Japan on the next day, and became extratropical on October 1.

On September 20, the Japan Meteorological Agency (JMA) began to track a tropical depression located to the southeast of Guam.

Benefited from the favourable condition such as high sea surface temperatures (SSTs) of 28 °C (82 °F) and low wind shear, Trami gradually intensified, attaining severe tropical storm on the morning,[7] and became the tenth typhoon of the annual typhoon season later that day.

It developed a pinhole eye on that day and entered the Philippine Area of Responsibility, receiving the name "Paeng" from PAGASA.

[11] According to JMA, the storm achieved its peak intensity at 18:00 UTC that day, with 10-minute maximum sustained winds of 195 km/h (120 mph), and a central pressure of 915 hPa (mbar; 27.02 inHg).

[14] The typhoon's persistence over the same location for several days resulted in tremendous upwelling of cooler waters, with sea surface temperatures dropping from 28 to 21 °C (82 to 70 °F).

[15] The combined effect of cooler water and dry air resulted in significant weakening, and Trami dropping below super typhoon status late on September 25.

[17] On September 28, the subtropical ridge over the Pacific Ocean slightly intensified, and Trami accelerated to the northwest.

[20] The typhoon made landfall near Tanabe, Wakayama at 8:00 p.m. JST on September 30 (11:00 UTC), with winds of 150 km/h (90 mph).

From October 3 to 8, Trami's remnants made a large counterclockwise loop over the Bering Sea, while gradually weakening, before moving back south of the Aleutian Islands.

[24] Trami made its closest approach to Okinawa Island in the afternoon of September 29, passing just 30 km (19 mi) west of the Naha Airport.