Bulletin updated at 18:00 HKT 19/Sep/2025
By the Hong Kong Observatory at 6:00 p.m. on 19 Sep 2025
Warnings:
Gale force winds in Hong Kong adjacent waters, Nan'ao,
Shanwei and south of Hong Kong. Strong winds in Shangchuan
Dao.
Weather Situation:
At 6 p.m., Tropical Storm Mitag with maximum sustained winds
of about 85 kilometres per hour near its centre was located
at 23.0 degrees north, 115.1 degrees east. It is forecast to
move west-northwest slowly towards the vicinity of the Pearl
River Estuary.
Area forecasts for the next 24 hours
Hong Kong Adjacent Waters:
Northwest force 7 to 8, up to force 9 at first.
Frequent heavy squally showers and thunderstorms.
Rough to very rough seas, high at first.
Nan'ao:
South to southeast force 6 to 7, up to force 8 at first.
Frequent heavy squally showers and thunderstorms.
Rough seas, very rough at first.
Shanwei:
South to southwest force 7 to 8, up to force 9 at first.
Frequent heavy squally showers and thunderstorms.
Rough to very rough seas, high at first.
South of Hong Kong:
South to southwest force 7 to 8, north to northwest up to
force 8 at first.
Frequent heavy squally showers and thunderstorms.
Rough to very rough seas.
Shangchuan Dao:
North to northeast force 4 to 5, becoming west to southwest
up to force 6.
Scattered showers and squally thunderstorms.
Moderate seas, becoming rough.
Outlook for the following 48 hours
East to southeasterly winds of force 5 to 6, becoming north
to northeasterly winds of up to force 8 in east later.
Frequent heavy squally showers and thunderstorms.
Latest reports from south china coastal weather stations
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Waglan Island Wind west force 4
Visibility 50 kilometres or above
Shantou Wind east-southeast force 3
Visibility 1900 metres in rain
Huangmaozhou Wind north-northwest force 5
Macau Wind north force 3
Xisha Wind southwest force 2
Visibility 27 kilometres