SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 11:30 P.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 8:55 P.M. ON 20 DECEMBER
2021

WARNINGS:

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

WEATHER SITUATION:

SEVERE TROPICAL STORM RAI HAS WEAKENED INTO A TROPICAL
STORM.
 
AT 9 P.M., RAI WITH MAXIMUM SUSTAINED WINDS OF ABOUT 85
KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED AT 19.0
DEGREES NORTH, 112.2 DEGREES EAST. IT IS FORECAST TO MOVE
NORTHEAST AT ABOUT 22 KILOMETRES PER HOUR ACROSS THE
NORTHERN PART OF THE SOUTH CHINA SEA AND WEAKEN RAPIDLY.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

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

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

SHANWEI:
EAST TO NORTHEAST FORCE 6 TO 7, BECOMING CYCLONIC FORCE 6
TO 7 LATER.
SCATTERED SQUALLY SHOWERS AND THUNDERSTORMS.
ROUGH SEAS.

SOUTH OF HONG KONG:
EAST TO NORTHEAST FORCE 7 TO 8, BECOMING CYCLONIC FORCE 6
TO 7.
OCCASIONAL HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
ROUGH TO VERY ROUGH SEAS.

SHANGCHUAN DAO:
NORTH TO NORTHWEST FORCE 7 TO 8, CYCLONIC UP TO FORCE 9 AT
FIRST.
OCCASIONAL HEAVY SQUALLY SHOWERS AND THUNDERSTORMS.
ROUGH TO VERY ROUGH SEAS, HIGH AT FIRST.

OUTLOOK FOR THE FOLLOWING 48 HOURS

NORTHEASTERLY WINDS OF FORCE 6 TO 7, CYCLONIC WINDS OF
FORCE 6 TO 7 IN EAST AT FIRST. OCCASIONAL HEAVY SQUALLY
SHOWERS AND THUNDERSTORMS AT FIRST.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND NORTHEAST FORCE 6

SHANTOU            WIND EAST FORCE 1 
                   VISIBILITY 11 KILOMETRES

MACAU              WIND NORTH FORCE 3 
                   VISIBILITY 1600 METRES IN RAIN

XISHA              WIND WEST-NORTHWEST FORCE 3 
                   VISIBILITY 4000 METRES IN RAIN

DISPATCHED BY HONG KONG OBSERVATORY AT 20:58 HKT ON 20.12.2021