An area of disturbed weather developed from the Western Pacific monsoon trough in late July 1993.

Tracking west-northwestward, Ofelia slowly deepened and attained its peak intensity of 80 km/h (50 mph) and a minimum barometric pressure of 994 mbar (29.4 inHg) at noon on July 26.

The storm dropped heavy rains in Ehime Prefecture for a 36-hour period, resulting in 17 landslides and the cancellation of 16 flights.

[5] At 22:00 UTC, a Tropical Cyclone Formation Alert was issued based on satellite imagery that showed a well-organized system, although the low-level circulation remained exposed from the deep convection.

Due to the sudden development of central dense overcast over the low-level circulation center, the JTWC issued its first warning on Tropical Storm Ofelia at 06:00 UTC on July 25, although post-season analysis from the JTWC indicated that Ofelia did not become a tropical storm until three hours later.

[8] Midday on July 26, the storm attained its peak intensity of 80 km/h (50 mph) and a minimum barometric pressure of 994 mbar (29.4 inHg).

On the next day, the storm made landfall over Kyushu about 60 km (35 mi) east-southeast of Kagoshima[7] at peak intensity.

[10][11][12] A total of 1,282 mm (50.5 in) fell in Ebino; this was the highest rainfall recorded throughout the passage of the three systems combined.

Heavy rains contributed to flooding that overflowed rivers in Kochi, Kagami, and Yusuhara, destroying some homes.

[25] Ofelia dropped heavy rains across Ehime Prefecture for a 36-hour period, resulting in 17 landslides.

[26] Heavy rains from Ofelia, Percy, and Nathan caused Nagasaki City to have their wettest July on record.

[28] In Oita Prefecture, a landslide triggered by the rain crushed a home in Honyabakei, burying an 87-year old, 57-year-old and 10-year-old.

[20] Six trains and some road traffic was halted in Yamaguchi Prefecture, located on the western tip of the Honshu.

[33] There, four people were killed, including a middle school student who drowned in floodwaters and a 49-year-old that was initially rendered missing, and eight others sustained injuries, three of whom in a tent in Tokuyama.