Intensification was initially gradual, with Dinah becoming a typhoon early on August 24, before it subsequently intensified at a faster pace.

The system then began to recurve towards southwestern Japan, and after tracking through the area, Dinah transitioned into an extratropical cyclone on August 31, although the remnants could be traced for four more days as it approached the International Date Line.

The origins of Typhoon Dinah can be traced back to a poorly organized area of disturbed weather that formed on August 18 close to Guam and was embedded in the monsoon trough, at the time situated near the equator.

[3][nb 1] Late on August 20, there was a rapid increase in the coverage of the thunderstorm activity, and satellite intensity estimates via the Dvorak Technique reached T2.0/55 km/h (35 mph).

Following an increase in Dvorak classifications,[2] the JTWC classified the depression as Tropical Storm Dinah on the evening of August 21.

[6][nb 2] However, strong wind shear prevented intensification at the climatological rate of one T number per day, as the storm passed roughly 225 km (140 mi) south of Guam.

After turning west-northwest and an increase in the storm's Dvorak intensity estimates,[2] both the JTWC and JMA upgraded Dinah into a typhoon on the morning of August 24.

[2] At 06:00 UTC on August 25, the JTWC increased the intensity of the typhoon to 185 km/h (115 mph), equal to Category 3 status on the United States-based Saffir–Simpson hurricane wind scale.

[5] Early on August 26, the JTWC estimated that Dinah, while continuing northwest at a steady clip, obtained maximum sustained wind speed, with 240 km/h (150 mph), making it a super typhoon.

[3] Around this time, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) also monitored the storm and assigned it with the local name Luding.

This shear resulted in weakening, though the JTWC estimated the typhoon still had winds of 100 mph (160 km/h) as the storm passed approximately 175 km (110 mi) west of Kadena Air Base on the afternoon of August 29.

That day, the typhoon passed 100 km (60 mi) northwest of Sasebo Naval Base in western Japan while transitioning into an extratropical cyclone.

[13] Six people were killed when a small Buddhist temple collapsed due to heavy rains near Taegu, located 240 km (150 mi) southeast of Seoul, the officials said Offshore, a 99,000 kg (99 t) fishing boat sunk near Ulleungdo Island, located approximately 320 km (200 mi) east of Seoul, and left 32 fishermen missing, though one crewman was successfully rescued.