WTJP21 RJTD 281200

WARNING 281200.

WARNING VALID 291200.

WARNING IS UPDATED EVERY 6 HOURS.

TYPHOON WARNING.

SEVERE TROPICAL STORM 1504 MAYSAK (1504) UPGRADED FROM TROPICAL STORM

985 HPA

AT 07.3N 153.9E TRUKS MOVING WEST 07 KNOTS.

POSITION FAIR.

MAX WINDS 55 KNOTS NEAR CENTER.

RADIUS OF OVER 50 KNOT WINDS 30 MILES.

RADIUS OF OVER 30 KNOT WINDS 150 MILES.

FORECAST POSITION FOR 291200UTC AT 07.8N 149.8E WITH 70 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

970 HPA, MAX WINDS 70 KNOTS NEAR CENTER.

EXTENDED OUTLOOK.

FORECAST POSITION FOR 301200UTC AT 08.7N 144.5E WITH 140 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

950 HPA, MAX WINDS 85 KNOTS NEAR CENTER.

FORECAST POSITION FOR 311200UTC AT 09.6N 139.1E WITH 210 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

945 HPA, MAX WINDS 90 KNOTS NEAR CENTER.



JAPAN METEOROLOGICAL AGENCY.=