WTJP32 RJTD 190900 WARNING 190900. WARNING VALID 200900. STORM WARNING. TROPICAL STORM 1820 CIMARON (1820) 998 HPA AT 15.9N 150.3E SEA AROUND OF MINAMITORISIMA MOVING WESTNORTHWEST 15 KNOTS. POSITION FAIR. MAX WINDS 40 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 150 MILES. FORECAST POSITION FOR 192100UTC AT 16.9N 148.2E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 994 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 200900UTC AT 17.9N 146.4E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 50 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=