Bulletin updated at 14:55 HKT 18/Sep/2025
By the Hong Kong Observatory at 2:55 p.m. on 18 Sep 2025
Warnings:
Storm force winds in Shanwei. Gale force winds in Hong Kong
adjacent waters, Nan'ao and south of Hong Kong. Strong winds
in Shangchuan Dao.
Weather Situation:
The tropical depression over the northeastern part of South
China Sea has intensified into a tropical storm.
At 3 p.m., the tropical storm with maximum sustained winds
of about 65 kilometres per hour near its centre was located
at 20.1 degrees north, 117.8 degrees east. It is forecast to
move northwest at about 18 kilometres per hour in the
general direction of the coast of eastern Guangdong.
Area forecasts for the next 24 hours
Hong Kong Adjacent Waters：
East to northeast force 4 to 5, becoming north to northwest
up to force 8 later.
Occasional heavy squally showers and thunderstorms.
Moderate seas, becoming very rough later.
Nan'ao：
East to northeast force 6 to 7, becoming cyclonic force 9.
Frequent heavy squally showers and thunderstorms.
Rough seas, becoming very rough.
Shanwei：
Northeast force 5 to 6, becoming cyclonic force 10 later.
Frequent heavy squally showers and thunderstorms.
Moderate to rough seas, becoming high later.
South of Hong Kong：
Northeast force 4 to 5, becoming north to northwest up to
force 8 later.
Occasional heavy squally showers and thunderstorms.
Moderate seas, becoming very rough later.
Shangchuan Dao：
East to northeast force 4 to 5, becoming north force 6
later.
Scattered showers and squally thunderstorms.
Moderate seas, becoming rough later.
Outlook for the following 48 hours
Southwesterly winds of up to force 7, cyclonic winds of
force 10 in east at first. Frequent heavy squally showers
and thunderstorms.
Latest reports from south china coastal weather stations
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Waglan Island Wind east-northeast force 3
Visibility 50 kilometres or above
Shantou Wind east-southeast force 2
Visibility 30 kilometres
Huangmaozhou Wind east-northeast force 3
Macau Wind east-northeast force 2
Visibility 50 kilometres or above
Xisha Wind east-northeast force 2
Visibility 29 kilometres