WTSS20 VHHH 190145 TROPICAL CYCLONE WARNING AT 190000 UTC, TROPICAL STORM DIANMU (1608) WITH CENTRAL PRESSURE 982 HECTOPASCALS WAS CENTRED WITHIN 60 NAUTICAL MILES OF TWO ZERO POINT FOUR DEGREES NORTH (20.4 N) ONE ZERO SEVEN POINT EIGHT DEGREES EAST (107.8 E) AND IS FORECAST TO MOVE WEST AT ABOUT 12 KNOTS FOR THE NEXT 24 HOURS. MAXIMUM WINDS NEAR THE CENTRE ARE ESTIMATED TO BE 45 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 200000 UTC DISSIPATED OVER LAND.