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 23 SEPTEMBER
2025

WARNINGS:

HURRICANE FORCE WINDS IN HONG KONG ADJACENT WATERS, NAN'AO,
SHANWEI AND SOUTH OF HONG KONG. STORM FORCE WINDS IN
SHANGCHUAN DAO.

WEATHER SITUATION:

AT 3 A.M., SUPER TYPHOON RAGASA WITH MAXIMUM SUSTAINED
WINDS OF ABOUT 220 KILOMETRES PER HOUR NEAR ITS CENTRE WAS
LOCATED AT 19.7 DEGREES NORTH, 119.0 DEGREES EAST. IT IS
FORECAST TO MOVE WEST-NORTHWEST AT ABOUT 22 KILOMETRES PER
HOUR ACROSS THE NORTHERN PART OF THE SOUTH CHINA SEA.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

NORTH FORCE 6 TO 7, FORCE 12 LATER.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
ROUGH SEAS, BECOMING PHENOMENAL LATER.

NAN'AO:
NORTH TO NORTHEAST FORCE 10 TO 11, BECOMING CYCLONIC FORCE
12.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
HIGH TO VERY HIGH SEAS, BECOMING PHENOMENAL.

SHANWEI:
NORTH FORCE 9 TO 10, BECOMING CYCLONIC FORCE 12.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
HIGH SEAS, BECOMING PHENOMENAL.

SOUTH OF HONG KONG:
NORTH TO NORTHWEST FORCE 7 TO 8, FORCE 12 LATER.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
ROUGH TO VERY ROUGH SEAS, BECOMING PHENOMENAL LATER.

SHANGCHUAN DAO:
NORTH TO NORTHWEST FORCE 5 TO 6, FORCE 10 LATER.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS, BECOMING HIGH LATER.

OUTLOOK FOR THE FOLLOWING 48 HOURS

CYCLONIC WINDS OF FORCE 12, BECOMING SOUTHERLY WINDS OF
FORCE 12. FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND NORTH FORCE 5 
                   VISIBILITY 42 KILOMETRES

SHANTOU            WIND WEST-SOUTHWEST FORCE 1 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND NORTH FORCE 4

MACAU              WIND NORTH FORCE 3 
                   VISIBILITY OVER 60 KILOMETRES

XISHA              WIND CALM 
                   VISIBILITY 28 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 03:30 HKT ON 23.09.2025