[6] Since September 21, Jelawat moved southwestwards slowly by tracking along the southwestern extension of the subtropical ridge anchoring east of Japan.

The typhoon also reached category 5 strength on the Saffir–Simpson hurricane wind scale, with a solid band of deep convection surrounding a 20-nautical-mile (37 km; 23 mi) eye.

[13] Tracking northwestwards since September 25, Typhoon Jelawat entered an eyewall replacement cycle, and the process ended with a 25-nautical-mile (46 km; 29 mi) eye on the next day.

[16] When approaching Okinawa, Jelawat began to move northeastwards by tracking along the western edge of the subtropical ridge on September 28, and JTWC downgraded the system to a typhoon for a slight elongation in the overall shape.

[18] With a shrunken 7-nautical-mile (13 km; 8.1 mi) pinhole eye, Typhoon Jelawat passed through the west coast of Okinawa Island early on September 29, when the estimated 10-minute maximum sustained winds were at 90 knots (165 km/h, 105 mph).

[20] Then, the typhoon accelerated northeastwards and moved into an area of strong southwesterly vertical wind shear, but jet-induced poleward outflow kept the system from rapid decaying.

[21] Since September 30, Jelawat was fully embedded in baroclinic zone and began extratropical transition, as the convective banding was unraveling.

[23] The system made landfall over Aichi Prefecture in Japan at 10Z, when the estimated 10-minute maximum sustained winds were at 70 knots (130 km/h, 80 mph).

Eight hours later, JMA downgraded Jelawat to a severe tropical storm when it was located in Iwate Prefecture, and JTWC issued the final warning on the system simultaneously.

According to the Japan Meteorological Agency, the maximum gust produced by Typhoon Jelawat was at 62.6 m/s (225 km/h) in Miyagi Island of Uruma, Okinawa.

[27] The maximum sustained winds were at 41.1 m/s (148 km/h) in Naha, ranked the tenth-strongest in that county seat and the largest city of Okinawa Prefecture on record.

The storm was located nearly 220 km (140 mi) south of southwestern prefecture of Kochi, when officials warned the locals of strong wind, torrential rain, landslides and possible flash flooding.