The Hong Kong Observatory issued the No. 8 Southeast Gale or Storm Signal at 10.15 pm yesterday (August 16).
On cases of tree damage, the 1823 Government Call Centre has so far received four reports.
The Home Affairs Department has so far opened 24 temporary shelters, 119 people have sought refuge at the shelters.
On air traffic, 12 arrival flights and nine departure flights have been delayed.
No report of flooding or landslide has been received.
The signal will remain in force for some time.