SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 4:30 P.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 12:30 P.M. ON 17 OCTOBER
2025

WARNINGS:

STRONG WINDS IN NAN'AO, SHANWEI, SOUTH OF HONG KONG AND
SHANGCHUAN DAO.

WEATHER SITUATION:

AN INTENSE NORTHEAST MONSOON IS EXPECTED TO REACH THE SOUTH
CHINA COASTAL WATERS OVER THE WEEKEND. BESIDES, THE
TROPICAL CYCLONE OVER THE SEAS EAST OF THE PHILIPPINES WILL
EDGE CLOSER TO THE VICINITY OF LUZON AND INTENSIFY
GRADUALLY TODAY AND TOMORROW. IT WILL ENTER THE CENTRAL AND
NORTHERN PARTS OF THE SOUTH CHINA SEA AFTERWARDS.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

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

NAN'AO, SHANWEI, SOUTH OF HONG KONG AND SHANGCHUAN DAO:
EAST TO NORTHEAST FORCE 4 TO 5, OCCASIONALLY FORCE 6.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EAST TO NORTHEASTERLY WINDS OF FORCE 5 TO 6, BECOMING NORTH
TO NORTHEASTERLY WINDS OF UP TO FORCE 7, UP TO FORCE 8 IN
EAST. SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST-NORTHEAST FORCE 4 
                   VISIBILITY 20 KILOMETRES

SHANTOU            WIND EAST-SOUTHEAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND EAST FORCE 5

MACAU              WIND NORTH-NORTHEAST FORCE 1 
                   VISIBILITY OVER 50 KILOMETRES

XISHA              WIND EAST-NORTHEAST FORCE 3 
                   VISIBILITY 14 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 12:30 HKT ON 17.10.2025