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 30 AUGUST 2025

WARNINGS:

STRONG WINDS IN ALL AREAS.

WEATHER SITUATION:

AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH CHINA COASTAL
WATERS.

AT 3 A.M., THE TROPICAL DEPRESSION OVER THE CENTRAL AND
NORTHERN PARTS OF THE SOUTH CHINA SEA WITH MAXIMUM
SUSTAINED WINDS OF ABOUT 55 KILOMETRES PER HOUR NEAR ITS
CENTRE WAS LOCATED AT 17.4 DEGREES NORTH, 109.4 DEGREES
EAST. IT IS FORECAST TO MOVE WEST-NORTHWEST AT ABOUT 28
KILOMETRES PER HOUR ACROSS THE SEAS SOUTH OF HAINAN ISLAND.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST FORCE 5 TO 6.
A FEW SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

NAN'AO, SHANWEI AND SOUTH OF HONG KONG:
EAST TO SOUTHEAST FORCE 5 TO 6.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

SHANGCHUAN DAO:
EAST TO SOUTHEAST FORCE 5 TO 6, FORCE 7 AT FIRST.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EAST TO SOUTHEASTERLY WINDS OF FORCE 4 TO 5. SCATTERED
SHOWERS AND SQUALLY THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST-NORTHEAST FORCE 5 
                   VISIBILITY 30 KILOMETRES

SHANTOU            WIND EAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND EAST FORCE 6

MACAU              WIND EAST FORCE 4 
                   VISIBILITY OVER 50 KILOMETRES

XISHA              WIND SOUTH-SOUTHEAST FORCE 2 
                   VISIBILITY 19 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 03:31 HKT ON 30.08.2025