PRESS WEATHER NO. 138 - SOUTH CHINA COASTAL WATERS

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SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 11:30 P.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 7:45 P.M. ON 13 AUGUST 2026

WARNINGS:

SEVERE SQUALLY THUNDERSTORMS IN HONG KONG ADJACENT WATERS.
STRONG WINDS IN NAN'AO, SHANWEI, SOUTH OF HONG KONG AND
SHANGCHUAN DAO.

WEATHER SITUATION:

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

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

SOUTHWEST 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 AND SHANWEI:
SOUTHWEST FORCE 4 TO 5, BECOMING UP TO FORCE 6.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS, BECOMING ROUGH.

SOUTH OF HONG KONG AND SHANGCHUAN DAO:
SOUTHWEST FORCE 4 TO 5, BECOMING UP TO FORCE 6.
OCCASIONAL HEAVY SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS, BECOMING ROUGH.

OUTLOOK FOR THE FOLLOWING 48 HOURS

WEST TO SOUTHWESTERLY WINDS OF FORCE 4 TO 5, OCCASIONALLY
FORCE 6. OCCASIONAL HEAVY SHOWERS AND SQUALLY THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND SOUTH FORCE 4 
                   VISIBILITY OVER 50 KILOMETRES

SHANTOU            WIND EAST-SOUTHEAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND SOUTH FORCE 4

MACAU              WIND SOUTH-SOUTHEAST FORCE 2 
                   VISIBILITY OVER 50 KILOMETRES

XISHA              WIND SOUTHWEST FORCE 2 
                   VISIBILITY 19 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 19:45 HKT ON 13.08.2026