WTSS20 VHHH 180745 TROPICAL CYCLONE WARNING AT 180600 UTC, TROPICAL STORM DIANMU (1608) WITH CENTRAL PRESSURE 985 HECTOPASCALS WAS CENTRED WITHIN 90 NAUTICAL MILES OF TWO ZERO POINT NINE DEGREES NORTH (20.9 N) ONE ONE ZERO POINT SEVEN DEGREES EAST (110.7 E) AND IS FORECAST TO MOVE WEST AT ABOUT 10 KNOTS FOR THE NEXT 24 HOURS. MAXIMUM WINDS NEAR THE CENTRE ARE ESTIMATED TO BE 35 KNOTS. RADIUS OF OVER 33 KNOT WINDS 60 NAUTICAL MILES OVER SOUTHERN SEMICIRCLE, 30 NAUTICAL MILES ELSEWHERE. RADIUS OF OVER 2 METRE WAVES 180 NAUTICAL MILES. FORECAST POSITION AND INTENSITY AT 190600 UTC TWO ZERO POINT FIVE DEGREES NORTH (20.5 N) ONE ZERO SIX POINT EIGHT DEGREES EAST (106.8 E) MAXIMUM WINDS 40 KNOTS. FORECAST POSITION AND INTENSITY AT 200600 UTC DISSIPATED OVER LAND.