The Observatory says Severe Typhoon Gaemi is moving across the Taiwan Strait and is expected to make landfall over Fujian later on Thursday, maintaining a distance of over 500 kilometres from Hong Kong. It says unless Gaemi adopts a more westerly track after making landfall, the chance of issuing a tropical cyclone warning signal is relatively low.

The Observatory also says the south-west monsoon over the northern part of the South China Sea will become more active, and depending on the changes in local wind conditions, it will consider issuing the Strong Monsoon Signal.