SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 3:30 A.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 0:55 A.M. ON 20 DECEMBER
2021

WARNINGS:

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

WEATHER SITUATION:

THE NORTHEAST MONSOON IS AFFECTING THE SOUTH CHINA COASTAL
WATERS.

SEVERE TYPHOON RAI HAS WEAKENED INTO A TYPHOON.
 
AT 1 A.M., RAI WITH MAXIMUM SUSTAINED WINDS OF ABOUT 145
KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED AT 15.6
DEGREES NORTH, 110.5 DEGREES EAST. IT IS FORECAST TO MOVE
NORTH AT FIRST, THEN TURN TO NORTH-NORTHEAST LATER AT ABOUT
18 KILOMETRES PER HOUR ACROSS THE CENTRAL PART OF THE SOUTH
CHINA SEA AND WEAKEN GRADUALLY.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST TO NORTHEAST FORCE 6 TO 7.
OCCASIONAL RAIN.
ROUGH SEAS.

NAN'AO AND SHANWEI:
EAST TO NORTHEAST FORCE 6 TO 7.
ROUGH SEAS.

SOUTH OF HONG KONG:
EAST TO NORTHEAST FORCE 7 TO 8.
SCATTERED SHOWERS AND THUNDERSTORMS LATER.
ROUGH TO VERY ROUGH SEAS.

SHANGCHUAN DAO:
NORTHEAST FORCE 7 TO 8, BECOMING CYCLONIC UP TO FORCE 10
LATER.
FREQUENT HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
ROUGH TO VERY ROUGH SEAS, BECOMING HIGH LATER.

OUTLOOK FOR THE FOLLOWING 48 HOURS

CYCLONIC WINDS OF FORCE 7 TO 8, UP TO FORCE 9 AT FIRST.
OCCASIONAL HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST-NORTHEAST FORCE 7 
                   VISIBILITY 25 KILOMETRES

SHANTOU            WIND EAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

MACAU              WIND NORTH-NORTHEAST FORCE 2 
                   VISIBILITY 13 KILOMETRES

XISHA              WIND EAST-NORTHEAST FORCE 4 
                   VISIBILITY 5000 METRES

DISPATCHED BY HONG KONG OBSERVATORY AT 00:55 HKT ON 20.12.2021