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 25 JULY 2025

WARNINGS:

STRONG WINDS IN NAN'AO.

WEATHER SITUATION:

AT 10 A.M., SEVERE TROPICAL STORM CO-MAY WITH MAXIMUM
SUSTAINED WINDS OF ABOUT 110 KILOMETRES PER HOUR NEAR ITS
CENTRE WAS LOCATED AT 18.0 DEGREES NORTH, 120.5 DEGREES
EAST. IT IS FORECAST TO MOVE NORTHEAST AT ABOUT 30
KILOMETRES PER HOUR ACROSS THE NORTHERN PART OF LUZON.
 
MEANWHILE, TROPICAL STORM FRANCISCO WITH MAXIMUM SUSTAINED
WINDS OF ABOUT 65 KILOMETRES PER HOUR NEAR ITS CENTRE WAS
LOCATED AT 26.8 DEGREES NORTH, 123.2 DEGREES EAST. IT IS
FORECAST TO MOVE WEST AT ABOUT 14 KILOMETRES PER HOUR
ACROSS THE EAST CHINA SEA.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

WEST TO NORTHWEST FORCE 4.
A FEW SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

NAN'AO:
NORTH FORCE 4 TO 5, FORCE 6 AT FIRST.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS, ROUGH AT FIRST.

SHANWEI, SOUTH OF HONG KONG AND SHANGCHUAN DAO:
WEST TO NORTHWEST FORCE 4, OCCASIONALLY FORCE 5.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

WEST TO SOUTHWESTERLY 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 WEST FORCE 2 
                   VISIBILITY OVER 50 KILOMETRES

SHANTOU            WIND EAST-NORTHEAST FORCE 1 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND NORTHWEST FORCE 3

MACAU              WIND NORTH-NORTHWEST FORCE 1 
                   VISIBILITY OVER 70 KILOMETRES

XISHA              WIND WEST FORCE 1 
                   VISIBILITY 20 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 09:46 HKT ON 25.07.2025