WTJP32 RJTD 051500 WARNING 051500. WARNING VALID 061500. STORM WARNING. TROPICAL STORM 2504 DANAS (2504) 990 HPA AT 20.9N 117.9E SOUTH CHINA SEA MOVING NORTHNORTHEAST SLOWLY. POSITION FAIR. MAX WINDS 45 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 150 MILES. FORECAST POSITION FOR 061500UTC AT 23.8N 119.8E WITH 57 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 55 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=