WTSS20 VHHH 182245 TROPICAL CYCLONE WARNING AT 182100 UTC, TROPICAL STORM DIANMU (1608) WITH CENTRAL PRESSURE 982 HECTOPASCALS WAS CENTRED WITHIN 60 NAUTICAL MILES OF TWO ZERO POINT THREE DEGREES NORTH (20.3 N) ONE ZERO EIGHT POINT ONE DEGREES EAST (108.1 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 40 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 192100 UTC DISSIPATED OVER LAND.