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 8:05 A.M. ON 31 MAY 2026

WARNINGS:

SEVERE SQUALLY THUNDERSTORMS IN HONG KONG ADJACENT WATERS.
STRONG WINDS IN NAN'AO.

WEATHER SITUATION:

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

AT 8 A.M., TYPHOON JANGMI WITH MAXIMUM SUSTAINED WINDS OF
ABOUT 120 KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED
AT 20.8 DEGREES NORTH, 128.2 DEGREES EAST. IT IS FORECAST
TO MOVE NORTH-NORTHWEST AT ABOUT 14 KILOMETRES PER HOUR
TOWARDS THE VICINITY OF THE RYUKYU ISLANDS.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST TO SOUTHEAST FORCE 3 TO 4, GUSTS OCCASIONALLY UP TO
FORCE 10 AT FIRST.
SCATTERED HEAVY SHOWERS AND SEVERE SQUALLY THUNDERSTORMS.
MODERATE SEAS.

NAN'AO:
EAST TO NORTHEAST FORCE 4 TO 5, OCCASIONALLY FORCE 6.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

SHANWEI:
EAST TO NORTHEAST FORCE 4, OCCASIONALLY FORCE 5.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

SOUTH OF HONG KONG AND SHANGCHUAN DAO:
EAST FORCE 4.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EASTERLY WINDS OF FORCE 4, OCCASIONALLY FORCE 5, BECOMING
SOUTHERLY WINDS UP TO FORCE 5. ISOLATED SHOWERS AND
THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST FORCE 3 
                   VISIBILITY 18 KILOMETRES

SHANTOU            WIND WEST FORCE 1 
                   VISIBILITY 15 KILOMETRES

HUANGMAOZHOU       WIND SOUTHEAST FORCE 4

MACAU              WIND SOUTH FORCE 1 
                   VISIBILITY 10 KILOMETRES

XISHA              WIND EAST-NORTHEAST FORCE 1 
                   VISIBILITY 27 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 08:05 HKT ON 31.05.2026