Maggie rapidly intensified to reach its peak intensity as a Category 3 equivalent typhoon on June 5 as it passed through the Luzon Strait.

PAGASA and the Japan Meteorological Agency (JMA) began issuing advisories on the depression at that time, with the former assigning it the local name Etang.

[2] Satellite imagery and intensity reports early on June 3 suggested the formation of a banding eye in the center of the system, leading to further organization and intensification as it continued on a northward course.

[2] Satellite imagery on June 4 revealed a well-developed eyewall and an anticyclone established directly over the center of the typhoon, signaling that rapid intensification could be occurring.

At 12:00 UTC on June 6, Maggie made landfall approximately 55 nautical miles east-northeast of Hong Kong with 1-minute sustained winds of 150 km/h (93 mph).

Due to the broad nature of the system, heavy rain from Maggie caused flooding and mudslides in the Philippines, which left three people dead and two others with injuries.

[5] In northern Vietnam and parts of southeast Asia, the storm's remnants dropped heavy rainfall up to 100 mm (4 in), which caused localized flooding but were mostly beneficial to crops in the country.

Transportation was severely disrupted in the city as a number of ferry, bus, and taxi services were delayed and suspended and some roads were damaged.

[7] Four people were confirmed to have died as a result of the typhoon in Guandong Province, while 3,200 structures and 120 vessels were damaged or destroyed by high winds and heavy rain.