SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 9:45 A.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 5:30 A.M. ON 7 SEPTEMBER
2025

WARNINGS:

HURRICANE FORCE WINDS IN SOUTH OF HONG KONG AND SHANGCHUAN
DAO. GALE FORCE WINDS IN HONG KONG ADJACENT WATERS AND
SHANWEI. STRONG WINDS IN NAN'AO.

WEATHER SITUATION:

AT 5 A.M., TROPICAL STORM TAPAH WITH MAXIMUM SUSTAINED
WINDS OF ABOUT 75 KILOMETRES PER HOUR NEAR ITS CENTRE WAS
LOCATED AT 18.4 DEGREES NORTH, 114.6 DEGREES EAST. IT IS
FORECAST TO MOVE WEST AT FIRST AND MOVE NORTH-NORTHWEST AT
ABOUT 14 KILOMETRES PER HOUR LATER, EDGING CLOSER TO THE
WESTERN COAST OF GUANGDONG AND INTENSIFYING GRADUALLY.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST FORCE 5 TO 6, UP TO FORCE 8 LATER.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS, BECOMING VERY ROUGH LATER.

NAN'AO:
EAST TO SOUTHEAST FORCE 5 TO 6, OCCASIONALLY FORCE 7.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

SHANWEI:
EAST TO SOUTHEAST FORCE 6 TO 7, BECOMING UP TO FORCE 8.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
ROUGH SEAS, BECOMING VERY ROUGH.

SOUTH OF HONG KONG:
EAST TO NORTHEAST FORCE 7 TO 8, BECOMING CYCLONIC UP TO
FORCE 12 LATER.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
ROUGH TO VERY ROUGH SEAS, BECOMING PHENOMENAL LATER.

SHANGCHUAN DAO:
NORTH TO NORTHEAST FORCE 6 TO 7, BECOMING CYCLONIC UP TO
FORCE 12 LATER.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
ROUGH SEAS, BECOMING PHENOMENAL LATER.

OUTLOOK FOR THE FOLLOWING 48 HOURS

SOUTHERLY WINDS OF FORCE 9 TO 10, CYCLONIC WINDS OF UP TO
FORCE 12 AT FIRST. FREQUENT HEAVY SQUALLY SHOWERS AND
THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST FORCE 5 
                   VISIBILITY 43 KILOMETRES

SHANTOU            WIND EAST-SOUTHEAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND EAST FORCE 6

MACAU              WIND EAST FORCE 3 
                   VISIBILITY 45 KILOMETRES

XISHA              WIND SOUTH-SOUTHEAST FORCE 1 
                   VISIBILITY 30 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 05:30 HKT ON 07.09.2025