WTSS20 VHHH 232246 TROPICAL CYCLONE WARNING AT 232100 UTC, TROPICAL DEPRESSION SONCA (1708) WITH CENTRAL PRESSURE 998 HECTOPASCALS WAS CENTRED WITHIN 60 NAUTICAL MILES OF ONE SEVEN POINT THREE DEGREES NORTH (17.3 N) ONE ONE ONE POINT FOUR DEGREES EAST (111.4 E) AND IS FORECAST TO MOVE WEST-NORTHWEST SLOWLY FOR THE NEXT 24 HOURS. MAXIMUM WINDS NEAR THE CENTRE ARE ESTIMATED TO BE 30 KNOTS. RADIUS OF OVER 2 METRE WAVES 60 NAUTICAL MILES. FORECAST POSITION AND INTENSITY AT 242100 UTC ONE EIGHT POINT THREE DEGREES NORTH (18.3 N) ONE ZERO NINE POINT TWO DEGREES EAST (109.2 E) MAXIMUM WINDS 30 KNOTS. FORECAST POSITION AND INTENSITY AT 252100 UTC DISSIPATED OVER LAND.