SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 7:45 P.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 4:30 P.M. ON 31 MAY 2026

WARNINGS:

STRONG WINDS IN NAN'AO.

WEATHER SITUATION:

AN EASTERLY AIRSTREAM IS AFFECTING THE COASTAL WATERS OF
EASTERN GUANGDONG.

AT 4 P.M., TYPHOON JANGMI WITH MAXIMUM SUSTAINED WINDS OF
ABOUT 120 KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED
AT 22.0 DEGREES NORTH, 127.8 DEGREES EAST. IT IS FORECAST
TO MOVE NORTH AT ABOUT 18 KILOMETRES PER HOUR TOWARDS THE
VICINITY OF THE RYUKYU ISLANDS.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

SOUTH TO SOUTHEAST FORCE 3 TO 4.
A FEW SHOWERS AND THUNDERSTORMS.
SLIGHT TO MODERATE SEAS.

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

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

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

OUTLOOK FOR THE FOLLOWING 48 HOURS

SOUTH TO SOUTHWESTERLY WINDS OF FORCE 4, OCCASIONALLY FORCE
5. ISOLATED SHOWERS AND THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST FORCE 2 
                   VISIBILITY 36 KILOMETRES

SHANTOU            WIND EAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND EAST-SOUTHEAST FORCE 4

MACAU              WIND EAST-SOUTHEAST FORCE 2 
                   VISIBILITY 20 KILOMETRES

XISHA              WIND NORTH FORCE 2 
                   VISIBILITY 26 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 16:30 HKT ON 31.05.2026