The Observatory cancelled the Strong Wind Signal No. 3 an hour after issuing it at 5.20am on Thursday, as Nalgae moved away from Hong Kong.
It said Nalgae had weakened into a tropical depression and made landfall over Zhuhai.
At 6am, Nalgae was centred about 60 kilometres west of the Observatory and was forecast to move northwest at about 10 kilometres per hour across the western part of Guangdong.
Forecasters warn that there are still occasional strong winds offshore and on high ground.
The Education Bureau said classes at AM and whole-day kindergartens, as well as schools for children with disabilities, would be suspended on Thursday.
Meanwhile, classes in primary and secondary schools, and in PM kindergartens, will resume.
Transport services such as the MTR, buses and ferries are also resuming normal operations.
All court and tribunal hearings will be resumed.
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Last updated: 2022-11-03 07.10 HKT