Matmo will be closest to Hong Kong in the small hours, the Observatory says.

Weather expected to be windy with squally showers over coast of southern China during the weekend under influence of Matmo, forecaster says.

Matmo is 12th tropical cyclone to trigger typhoon warning in Hong Kong this year, setting record.

Matmo will be closest to Hong Kong in the small hours, the Observatory says.

Airport Authority says 29 flights have been cancelled because of the storm.