WTJP31 RJTD 021500 WARNING 021500. WARNING VALID 031500. TYPHOON WARNING. TYPHOON 1612 NAMTHEUN (1612) 965 HPA AT 28.1N 130.7E SEA SOUTH OF JAPAN MOVING NORTH 06 KNOTS. POSITION GOOD. MAX WINDS 70 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 30 MILES. RADIUS OF OVER 30 KNOT WINDS 90 MILES NORTHEAST SEMICIRCLE AND 60 MILES ELSEWHERE. FORECAST POSITION FOR 030300UTC AT 29.7N 130.1E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 75 KNOTS NEAR CENTER. FORECAST POSITION FOR 031500UTC AT 30.9N 129.8E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 75 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=