SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 5:30 A.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 3:30 A.M. ON 23 AUGUST 2025

WARNINGS:

STRONG WINDS IN ALL AREAS.

WEATHER SITUATION:

AT 3 A.M., THE TROPICAL DEPRESSION OVER THE SEAS WEST OF
LUZON WITH MAXIMUM SUSTAINED WINDS OF ABOUT 55 KILOMETRES
PER HOUR NEAR ITS CENTRE WAS LOCATED AT 17.1 DEGREES NORTH,
117.9 DEGREES EAST. IT IS FORECAST TO MOVE WEST AT ABOUT 25
KILOMETRES PER HOUR ACROSS THE CENTRAL AND NORTHERN PARTS
OF THE SOUTH CHINA SEA.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

NORTH TO NORTHEAST FORCE 3 TO 4, BECOMING EAST UP TO FORCE
6 LATER.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.
SLIGHT TO MODERATE SEAS, BECOMING ROUGH LATER.

NAN'AO AND SHANWEI:
EAST TO NORTHEAST FORCE 5 TO 6, BECOMING UP TO FORCE 7.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

SOUTH OF HONG KONG AND SHANGCHUAN DAO:
NORTH TO NORTHEAST FORCE 4, BECOMING EAST UP TO FORCE 7
LATER.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
MODERATE SEAS, BECOMING ROUGH LATER.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EAST TO NORTHEASTERLY WINDS OF FORCE 6 TO 7, BECOMING
CYCLONIC WINDS UP TO FORCE 12 IN WEST. FREQUENT HEAVY
SQUALLY SHOWERS AND THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST-NORTHEAST FORCE 1 
                   VISIBILITY OVER 50 KILOMETRES

SHANTOU            WIND EAST-SOUTHEAST FORCE 1 
                   VISIBILITY 7 KILOMETRES

HUANGMAOZHOU       WIND NORTHEAST FORCE 1

MACAU              WIND SOUTH-SOUTHWEST FORCE 1

XISHA              WIND SOUTH-SOUTHWEST FORCE 1 
                   VISIBILITY 30 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 03:30 HKT ON 23.08.2025