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 12:30 P.M. ON 22 AUGUST 2025

WARNINGS:

STRONG WINDS IN NAN'AO AND SHANWEI.

WEATHER SITUATION:

THE AREA OF LOW PRESSURE NEAR LUZON IS INTENSIFYING
GRADUALLY. A TROPICAL CYCLONE APPEARS TO BE FORMING.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

SOUTH FORCE 3 TO 4, BECOMING EAST TO NORTHEAST UP TO FORCE
5 LATER.
A FEW SHOWERS AND SQUALLY THUNDERSTORMS.
SLIGHT TO MODERATE SEAS.

NAN'AO AND SHANWEI:
NORTHEAST FORCE 4, BECOMING EAST TO NORTHEAST UP TO FORCE 6
LATER.
OCCASIONAL HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
MODERATE SEAS, BECOMING ROUGH LATER.

SOUTH OF HONG KONG:
SOUTH TO SOUTHEAST FORCE 4, BECOMING NORTHEAST UP TO FORCE
5 LATER.
SCATTERED SQUALLY SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

SHANGCHUAN DAO:
SOUTH TO SOUTHEAST FORCE 4, BECOMING NORTHEAST UP TO FORCE
5 LATER.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EAST TO NORTHEASTERLY WINDS OF FORCE 5 TO 6, BECOMING UP TO
FORCE 8 IN WEST. FREQUENT HEAVY SQUALLY SHOWERS AND
THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND SOUTHWEST FORCE 3 
                   VISIBILITY OVER 50 KILOMETRES

SHANTOU            WIND WEST FORCE 2 
                   VISIBILITY 14 KILOMETRES

HUANGMAOZHOU       WIND WEST-NORTHWEST FORCE 2

MACAU              WIND NORTH-NORTHWEST FORCE 1

XISHA              WIND SOUTH-SOUTHWEST FORCE 2 
                   VISIBILITY 26 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 12:30 HKT ON 22.08.2025