WTJP22 RJTD 210600 WARNING 210600. WARNING VALID 220600. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1820 CIMARON (1820) UPGRADED FROM SEVERE TROPICAL STORM 970 HPA AT 21.2N 144.1E OGASAWARA SHOTO MOVING NORTHWEST 15 KNOTS. POSITION FAIR. MAX WINDS 70 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 60 MILES. RADIUS OF OVER 30 KNOT WINDS 300 MILES EAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 211800UTC AT 23.0N 141.4E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 75 KNOTS NEAR CENTER. FORECAST POSITION FOR 220600UTC AT 25.4N 138.8E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 80 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 230600UTC AT 31.5N 133.9E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 75 KNOTS NEAR CENTER. FORECAST POSITION FOR 240600UTC AT 40.5N 134.9E WITH 220 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 55 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=