WTSS20 VHHH 281945 TROPICAL CYCLONE WARNING AT 281800 UTC, TROPICAL STORM SINLAKU (1421) WITH CENTRAL PRESSURE 988 HECTOPASCALS WAS CENTRED WITHIN 90 NAUTICAL MILES OF ONE TWO POINT THREE DEGREES NORTH (12.3 N) ONE ONE THREE POINT ZERO DEGREES EAST (113.0 E) AND IS FORECAST TO MOVE WEST-NORTHWEST AT ABOUT 12 KNOTS FOR THE NEXT 12 HOURS. MAXIMUM WINDS NEAR THE CENTRE ARE ESTIMATED TO BE 45 KNOTS. RADIUS OF OVER 33 KNOT WINDS 90 NAUTICAL MILES. RADIUS OF OVER 2 METRE WAVES 150 NAUTICAL MILES. FORECAST POSITION AND INTENSITY AT 291800 UTC ONE TWO POINT EIGHT DEGREES NORTH (12.8 N) ONE ZERO NINE POINT ONE DEGREES EAST (109.1 E) MAXIMUM WINDS 45 KNOTS. FORECAST POSITION AND INTENSITY AT 301800 UTC ONE TWO POINT EIGHT DEGREES NORTH (12.8 N) ONE ZERO SIX POINT NINE DEGREES EAST (106.9 E) MAXIMUM WINDS 25 KNOTS. FORECAST POSITION AND INTENSITY AT 011800 UTC DISSIPATED OVER LAND.