WTJP32 RJTD 171500 WARNING 171500. WARNING VALID 181500. TYPHOON WARNING. TYPHOON 1621 SARIKA (1621) 965 HPA AT 17.8N 112.0E SOUTH CHINA SEA MOVING WESTNORTHWEST 09 KNOTS. POSITION GOOD. MAX WINDS 75 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 40 MILES. RADIUS OF OVER 30 KNOT WINDS 210 MILES. FORECAST POSITION FOR 180300UTC AT 18.9N 110.4E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 181500UTC AT 19.8N 109.4E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 55 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=