The Hong Kong Observatory issued typhoon signal No 1 on Monday morning as Severe Tropical Storm Man-yi edged closer to Hong Kong.

As of 5 pm, Man-yi was estimated to be about 470 kilometers south-southeast of the city, according to the HKO. It is forecast to move west or west-northwest at about 22 km per hour across the northern part of the South China Sea, and skirt around 400 km to the south of Hong Kong on Tuesday morning.

The T1 warning will last until at least 10 am Tuesday, and the chance of issuing typhoon signal No 3 is low, the observatory said.

Strong winds will be unlikely across the territory due to the terrain sheltering effect, it added. 

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Meanwhile, the HKO said that Victoria Harbour and Tai O will have high water levels due to a spring tide from Monday to Tuesday.

“Together with the combined effect of the northeast monsoon and Man-yi, the sea level will be particularly high during the high tide overnight,” it said.

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The observatory reminded the public to take precautionary measures and stay away from the shoreline as there will be swells in the sea. Minor flooding may occur in some low-lying coastal areas, it added.