SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 5:30 A.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 3:30 A.M. ON 18 JULY 2025

WEATHER SITUATION:

A SOUTHWESTERLY AIRSTREAM IS AFFECTING THE SOUTH CHINA
COASTAL WATERS.

THE TROPICAL DEPRESSION TO THE EAST OF THE PHILIPPINES HAS
INTENSIFIED INTO A TROPICAL STORM AND NAMED WIPHA.
 
AT 3 A.M., WIPHA WITH MAXIMUM SUSTAINED WINDS OF ABOUT 65
KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED AT 17.0
DEGREES NORTH, 124.7 DEGREES EAST. IT IS FORECAST TO MOVE
NORTHWEST AT ABOUT 22 KILOMETRES PER HOUR IN THE GENERAL
DIRECTION OF THE VICINITY OF LUZON STRAIT AND INTENSIFY
GRADUALLY.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

WEST TO SOUTHWEST FORCE 4.
ISOLATED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS.

NAN'AO AND SHANWEI:
WEST TO SOUTHWEST FORCE 4, OCCASIONALLY FORCE 5, BECOMING
NORTH TO NORTHEAST FORCE 5 LATER.
ISOLATED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS.

SOUTH OF HONG KONG AND SHANGCHUAN DAO:
WEST TO SOUTHWEST FORCE 4, OCCASIONALLY FORCE 5, BECOMING
NORTH FORCE 5 LATER.
ISOLATED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

NORTH TO NORTHEASTERLY WINDS OF FORCE 6 TO 7, BECOMING
CYCLONIC WINDS OF FORCE 12 LATER. FREQUENT HEAVY SQUALLY
SHOWERS AND THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND WEST-SOUTHWEST FORCE 3 
                   VISIBILITY 29 KILOMETRES

SHANTOU            WIND WEST FORCE 1 
                   VISIBILITY 5000 METRES IN RAIN

HUANGMAOZHOU       WIND WEST-SOUTHWEST FORCE 4

MACAU              WIND WEST-SOUTHWEST FORCE 2 
                   VISIBILITY 29 KILOMETRES

XISHA              WIND WEST-SOUTHWEST FORCE 3 
                   VISIBILITY 19 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 03:34 HKT ON 18.07.2025