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 9:40 P.M. ON 23 JULY 2025

WARNINGS:

STRONG WINDS IN NAN'AO.

WEATHER SITUATION:

THE TROPICAL STORM OVER THE NORTHERN PART OF LUZON WAS
NAMED CO-MAY.
 
AT 9 P.M., CO-MAY WITH MAXIMUM SUSTAINED WINDS OF ABOUT 65
KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED AT 17.7
DEGREES NORTH, 118.7 DEGREES EAST. IT IS FORECAST TO MOVE
SOUTH SLOWLY AND LINGER OVER 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 22.5 DEGREES NORTH, 129.5 DEGREES EAST. IT IS
FORECAST TO MOVE NORTHWEST AT ABOUT 22 KILOMETRES PER HOUR
IN THE GENERAL DIRECTION OF THE VICINITY OF THE RYUKYU
ISLANDS.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST FORCE 4 TO 5.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS.

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

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

SOUTH OF HONG KONG:
EAST FORCE 4 TO 5.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS.

SHANGCHUAN DAO:
EAST TO SOUTHEAST FORCE 4 TO 5.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EAST TO NORTHEASTERLY WINDS OF FORCE 4 TO 5, OCCASIONALLY
FORCE 6 AT FIRST, BECOMING WESTERLY WINDS OF FORCE 5 LATER.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST-NORTHEAST FORCE 3 
                   VISIBILITY OVER 50 KILOMETRES

SHANTOU            WIND SOUTH FORCE 1 
                   VISIBILITY 23 KILOMETRES

HUANGMAOZHOU       WIND EAST FORCE 5

MACAU              WIND SOUTHEAST FORCE 1 
                   VISIBILITY 35 KILOMETRES IN RAIN

XISHA              WIND VARIABLE FORCE 1 
                   VISIBILITY 9 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 21:41 HKT ON 23.07.2025