SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 12:30 P.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 9:45 A.M. ON 19 AUGUST 2025

WARNINGS:

SEVERE SQUALLY THUNDERSTORMS IN HONG KONG ADJACENT WATERS.

WEATHER SITUATION:

A SOUTHERLY AIRSTREAM IS AFFECTING THE SOUTH CHINA COASTAL
WATERS. MEANWHILE, SEVERE SQUALLY THUNDERSTORMS ARE
AFFECTING THE VICINITY OF THE PEARL RIVER ESTUARY.

AT 10 A.M., THE TROPICAL DEPRESSION OVER THE SOUTHERN PART
OF GUANGXI WITH MAXIMUM SUSTAINED WINDS OF ABOUT 45
KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED AT 21.9
DEGREES NORTH, 107.4 DEGREES EAST. IT IS FORECAST TO MOVE
NORTH AT ABOUT 15 KILOMETRES PER HOUR ENTERING INLAND AREAS
AND DISSIPATING GRADUALLY.
  
MEANWHILE, THE TROPICAL DEPRESSION OVER THE VICINITY OF THE
RYUKYU ISLANDS WITH MAXIMUM SUSTAINED WINDS OF ABOUT 45
KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED AT 25.6
DEGREES NORTH, 128.0 DEGREES EAST. IT IS FORECAST TO MOVE
NORTH-NORTHWEST AT ABOUT 15 KILOMETRES PER HOUR ACROSS THE
EAST CHINA SEA.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

SOUTH TO SOUTHEAST FORCE 4 TO 5, GUSTS OCCASIONALLY UP TO
FORCE 10 AT FIRST.
OCCASIONAL HEAVY SHOWERS AND SEVERE SQUALLY THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

NAN'AO:
SOUTH TO SOUTHEAST FORCE 4 TO 5.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS.

SHANWEI, SOUTH OF HONG KONG AND SHANGCHUAN DAO:
SOUTH TO SOUTHEAST FORCE 4 TO 5.
OCCASIONAL HEAVY SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

SOUTHERLY 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-SOUTHEAST FORCE 4 
                   VISIBILITY 16 KILOMETRES

SHANTOU            WIND SOUTHEAST FORCE 1 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND SOUTH FORCE 4

MACAU              WIND SOUTH FORCE 1 
                   VISIBILITY 19 KILOMETRES

XISHA              WIND SOUTH FORCE 3 
                   VISIBILITY 16 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 09:54 HKT ON 19.08.2025