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 25 SEPTEMBER
2025

WARNINGS:

STRONG WINDS IN ALL AREAS.

WEATHER SITUATION:

AT 5 A.M., SEVERE TROPICAL STORM RAGASA WITH MAXIMUM
SUSTAINED WINDS OF ABOUT 105 KILOMETRES PER HOUR NEAR ITS
CENTRE WAS LOCATED AT 21.4 DEGREES NORTH, 109.4 DEGREES
EAST, IT IS FORECAST TO MOVE WEST AT ABOUT 18 KILOMETRES
PER HOUR ACROSS THE COASTAL AREAS OF GUANGXI AND WEAKEN
GRADUALLY.
 
MEANWHILE, SEVERE TROPICAL STORM BUALOI WITH MAXIMUM
SUSTAINED WINDS OF ABOUT 90 KILOMETRES PER HOUR NEAR ITS
CENTRE WAS LOCATED AT 10.6 DEGREES NORTH, 129.8 DEGREES
EAST, IT IS FORECAST TO MOVE WEST-NORTHWEST AT ABOUT 25
KILOMETRES PER HOUR TOWARDS PHILIPPINES.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST TO SOUTHEAST FORCE 5 TO 6, UP TO FORCE 7 AT FIRST.
OCCASIONAL HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

NAN'AO AND SHANWEI:
SOUTHEAST FORCE 5 TO 6.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

SOUTH OF HONG KONG:
SOUTHEAST FORCE 5 TO 6, UP TO FORCE 7 AT FIRST.
OCCASIONAL HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

SHANGCHUAN DAO:
SOUTHEAST FORCE 5 TO 6, SOUTH TO SOUTHEAST UP TO 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 5 TO 6, BECOMING
NORTHEASTERLY WINDS OF UP TO FORCE 7 LATER. OCCASIONAL
HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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SHANTOU            WIND SOUTHEAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

DONGSHA            WIND SOUTHEAST FORCE 4 
                   VISIBILITY 8 KILOMETRES IN RAIN

MACAU              WIND EAST FORCE 3 
                   VISIBILITY 24 KILOMETRES

XISHA              WIND SOUTH-SOUTHWEST FORCE 3 
                   VISIBILITY 9 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 05:30 HKT ON 25.09.2025