SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 4:30 P.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 1:20 P.M. ON 30 AUGUST 2025

WARNINGS:

SEVERE SQUALLY THUNDERSTORMS IN HONG KONG ADJACENT WATERS.
STRONG WINDS IN ALL AREAS.

WEATHER SITUATION:

AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH CHINA COASTAL
WATERS. MEANWHILE, SEVERE SQUALLY THUNDERSTORMS ARE
AFFECTING THE VICINITY OF THE PEARL RIVER ESTUARY AND THE
COASTAL WATERS OF WESTERN GUANGDONG.

AT NOON, TROPICAL STORM NONGFA WITH MAXIMUM SUSTAINED WINDS
OF ABOUT 65 KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED
AT 17.8 DEGREES NORTH, 107.2 DEGREES EAST. IT IS FORECAST
TO MOVE WEST AT ABOUT 28 KILOMETRES PER HOUR TOWARDS
CENTRAL AND NORTHERN VIETNAM.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST FORCE 5 TO 6, GUSTS OCCASIONALLY UP TO FORCE 10 AT
FIRST.
A FEW SHOWERS AND SEVERE SQUALLY THUNDERSTORMS.
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.
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 FORCE 4 
                   VISIBILITY 4900 METRES

SHANTOU            WIND SOUTHEAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND EAST-SOUTHEAST FORCE 4

MACAU              WIND SOUTHEAST FORCE 3 
                   VISIBILITY 1100 METRES IN RAIN

XISHA              WIND EAST-SOUTHEAST FORCE 2 
                   VISIBILITY 23 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 13:22 HKT ON 30.08.2025