Typhoon Ofelia originated from an area of disturbed weather embedded in the monsoon trough situated near the Caroline Islands.

The typhoon skirted past the northeastern tip of Luzon and near the east coast of Taiwan, commencing a rapid weakening trend.

More than 200 houses were destroyed or damaged and roughly 8,500 hectares (21,000 acres) of rice paddies and vegetables were flooded.

On the morning of June 15, the Joint Typhoon Warning Center (JTWC) began to track an area of persistent convection with winds of 30 km/h (20 mph).

[3][nb 4] Initially, the depression tracked westward along the periphery of a subtropical ridge and in an environment of high wind shear that slowed the rate of organization.

Following an increase in convection and curved banding features and an improvement in outflow, the JTWC issued a tropical cyclone formation alert for the system on the morning of June 17.

[6][nb 5] Based on a Dvorak intensity estimate of T2.5/65 km/h (40 mph), the JTWC upgraded the depression into a tropical storm at 00:00 UTC on June 18.

Instead Ofelia slowed down and turned northwest on June 19 due to a surge in the southwesterly monsoon trough.

[3] Intensifying at a slower than climatological pace, Ofelia continued northwest as it rounded a subtropical ridge.

[2] At 18:00 UTC on June 22, the JMA upgraded Ofelia into a typhoon, while also estimating that the storm reached its maximum intensity of 120 km/h (75 mph) and a minimum central barometric pressure of 970 mbar (29 inHg).

[6] At this time, the JTWC reported that Ofelia reached its peak intensity of 170 km/h (105 mph); the basis for the estimate was a Dvorak classification of T5.0 and the appearance of an eye on weather satellite imagery.

Rapid weakening commenced due to land interaction,[2] and at noon on June 23, the JMA lowered Ofelia to below typhoon strength,[3] with the JTWC doing the same six hours later.

[2] The storm tracked through the province of Jiangsu,[5] and at 00:00 UTC on June 24 the JMA declared Ofelia an extratropical cyclone.

[12] Philippine Airlines cancelled five domestic flights to and from Manila while schools were closed in the capital and other affected areas.

[5] In response to the storm, the Philippine Red Cross ordered its chapters to provide relief to affected areas.

[5] According to media reports, the storm was the worst to impact eastern Taiwan in 30 years,[2] dropping up to 46 cm (18 in) of rain in a 24-hour time span,[19] although damage was slight elsewhere.

[12] Six people were killed, including five in drownings,[20] and thirty were injured in Hualien City, which was hardest hit by the typhoon.

[20] Nationwide, over 200 houses were destroyed or damaged and about 8,500 ha (21,005 acres) of rice paddies and vegetables were flooded.

[5] After battering the Philippines and Taiwan, the typhoon dropped 100 mm (3.9 in) of precipitation in parts of central China.