SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 7:45 P.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 4:30 P.M. ON 1 OCTOBER 2023

WARNINGS:

STRONG WINDS IN HONG KONG ADJACENT WATERS, NAN'AO AND
SHANWEI.

WEATHER SITUATION:

AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH CHINA COASTAL
WATERS.

TROPICAL STORM KOINU HAS INTENSIFIED INTO A SEVERE TROPICAL
STORM.
 
AT 4 P.M., KOINU WITH MAXIMUM SUSTAINED WINDS OF ABOUT 90
KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED AT 18.1
DEGREES NORTH, 128.8 DEGREES EAST. IT IS FORECAST TO MOVE
NORTHWEST AT ABOUT 12 KILOMETRES PER HOUR ACROSS THE SEAS
EAST OF THE PHILIPPINES AND INTENSIFY GRADUALLY.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST TO NORTHEAST FORCE 4 TO 5, OCCASIONALLY FORCE 6.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

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

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

SHANGCHUAN DAO:
EAST TO NORTHEAST FORCE 4, OCCASIONALLY FORCE 5.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EASTERLY WINDS OF FORCE 5 TO 6, BECOMING NORTHERLY WINDS OF
UP TO FORCE 7 IN EAST LATER. ISOLATED SHOWERS AND
THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST FORCE 4

SHANTOU            WIND EAST-SOUTHEAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND EAST FORCE 4

MACAU              WIND EAST FORCE 2 
                   VISIBILITY 13 KILOMETRES

XISHA              WIND NORTH-NORTHEAST FORCE 2 
                   VISIBILITY 25 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 16:36 HKT ON 01.10.2023