HONG KONG -- The Hong Kong Observatory said it would maintain its No 8 Southeast Gale or Storm Signal until at least 1 pm Monday due to Typhoon Tapah.

The observatory first issued the No 8 signal, the third-highest warning under Hong Kong's five-tier typhoon warning system, on Sunday evening.

Airport Authority Hong Kong expects around 100 flights to be cancelled on Monday. Amusement parks and clinics are closed under the influence of Tapah.

The Hong Kong Special Administrative Region government has taken precautions such as preparing flood barriers and having emergency response teams on call.

The observatory said Tapah is moving inland after making landfall in Guangdong province and is further away from Hong Kong. While wind power will diminish gradually, Hong Kong should still prepare for rainstorms and big waves on Monday.