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 9:50 P.M. ON 20 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.

TROPICAL STORM AMPIL HAS INTENSIFIED INTO A SEVERE TROPICAL
STORM.
 
AT 10 P.M., AMPIL WITH MAXIMUM SUSTAINED WINDS OF ABOUT 90
KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED NEAR 24.7
DEGREES NORTH, 130.0 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 TO 5, BECOMING WEST TO SOUTHWEST
FORCE 4 TO 5 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 FORCE 3 
                   VISIBILITY 20 KILOMETRES

SHANTOU            WIND EAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND EAST-SOUTHEAST FORCE 4

MACAU              WIND EAST FORCE 2 
                   VISIBILITY 14 KILOMETRES

XISHA              WIND WEST FORCE 2 
                   VISIBILITY 14 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 21:50 HKT ON 20.07.2018