The Hong Kong Observatory (HKO) on Saturday morning downgraded the Strong Wind Signal No 3, issued on Friday, to the Standby Signal No. 1 as Tropical Depression Mitag moved away from the city.

Mitag is weakening and, as at 9:00 am, was estimated to be about 130 kilometers north-northwest of the city. It is forecast to move west-northwest slowly across the northern part of the Pearl River Estuary, the observatory said in a weather bulletin issued at 9:20 am.

“The rainbands associated with Mitag are still bringing squally showers and thunderstorms to the vicinity of the Pearl River Estuary. Showers will be heavy at times. Seas are rough with swells.”

The forecaster issued the amber rainstorm warning at 4:05 am Saturday, indicating that heavy rain has fallen or is expected to fall generally over Hong Kong, exceeding 30 millimeters in an hour, and is likely to continue.

Warning of possible flooding, the HKO urged residents to take necessary precautions and stay away from watercourses.

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Meanwhile, Tropical Cyclone Ragasa is expected to move towards the vicinity of the Luzon Strait and intensify significantly over the next couple of days, the observatory said in another bulletin issued at midnight.

“It may reach super typhoon intensity and enter the northern part of the South China Sea early next week,” it read.

According to the current forecast, Ragasa is expected to edge closer to the coast of Guangdong by midweek next week.

The HKO warned that local weather will deteriorate, and winds will strengthen significantly, accompanied by heavy squally showers and thunderstorms.