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 21 JULY 2018

WARNINGS:

STRONG WINDS IN NAN'AO AND SHANWEI.

WEATHER SITUATION:

AN AREA OF LOW PRESSURE OVER THE CENTRAL AND NORTHERN PARTS
OF THE SOUTH CHINA SEA IS BRINGING UNSETTLED WEATHER TO THE
SOUTH CHINA COASTAL WATERS.

AT 3 A.M., SEVERE TROPICAL STORM AMPIL WITH MAXIMUM
SUSTAINED WINDS OF ABOUT 90 KILOMETRES PER HOUR NEAR ITS
CENTRE WAS LOCATED NEAR 25.5 DEGREES NORTH, 129.3 DEGREES
EAST. IT IS FORECAST TO MOVE NORTHWEST AT ABOUT 25
KILOMETRES PER HOUR TOWARDS THE VICINITY OF THE RYUKYU
ISLANDS.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST TO NORTHEAST FORCE 4, BECOMING WEST TO SOUTHWEST FORCE
4 LATER.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

NAN'AO AND SHANWEI:
EAST TO NORTHEAST FORCE 4 TO 5, OCCASIONALLY FORCE 6.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE TO ROUGH SEAS.

SOUTH OF HONG KONG AND SHANGCHUAN DAO:
EAST TO NORTHEAST FORCE 4 TO 5, BECOMING WEST TO SOUTHWEST
FORCE 4 TO 5 LATER.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

SOUTH TO SOUTHWESTERLY WINDS OF FORCE 5 TO 6, OCCASIONALLY
FORCE 7. ISOLATED SQUALLY SHOWERS AND THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST-NORTHEAST FORCE 3 
                   VISIBILITY 23 KILOMETRES

SHANTOU            WIND EAST FORCE 1 
                   VISIBILITY 30 KILOMETRES

DONGSHA            WIND EAST-NORTHEAST FORCE 3 
                   VISIBILITY 10 KILOMETRES

HUANGMAOZHOU       WIND EAST FORCE 3

MACAU              WIND SOUTH-SOUTHEAST FORCE 1 
                   VISIBILITY 11 KILOMETRES

XISHA              WIND NORTH-NORTHWEST FORCE 2 
                   VISIBILITY 16 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 03:30 HKT ON 21.07.2018