The Observatory has issued Standby Signal No 1 as super typhoon Meranti approaches the coast of Fujian.
The Observatory said according to the present forecast track, the chance of issuing higher storm signals on Wednesday is not high.
Meranti is expected to be closest to Hong Kong tomorrow morning, skirting around 400km to the east of the territory.
Parts of Taiwan were brought to a standstill on Wednesday morning as the strongest typhoon of the year skirted past the island's southern tip, knocking out power for more than 180,000 households.
Although super typhoon Meranti did not make landfall, the storm brought record strong winds and torrential rains to eastern and southern Taiwan.
At 10.15am local time, Meranti was 30 kilometres southwest of southernmost Hengchun township, packing gusts of up to 263 kilometres. Hengchun's observation station recorded the strongest winds in its 120 year history earlier on Wednesday, according to Taiwan's Central Weather Bureau.
Television footage showed flooded streets and violent winds in southern Kenting, a tourist destination known for its white-sand beaches.
School and work were cancelled for most eastern and southern counties while trains running along the east coast have been halted – affecting travel for the Mid-Autumn Festival long weekend which starts on Thursday.
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Last updated: 2016-09-14 HKT 12:17