WTJP21 RJTD 221200
WARNING 221200.
WARNING VALID 231200.
WARNING IS UPDATED EVERY 6 HOURS.
STORM WARNING.
SEVERE TROPICAL STORM 2404 PRAPIROON (2404) 980 HPA
AT 20.4N 108.1E GULF OF TONGKING MOVING WESTNORTHWEST 07 KNOTS.
POSITION FAIR.
MAX WINDS 60 KNOTS NEAR CENTER.
RADIUS OF OVER 50 KNOT WINDS 40 MILES.
RADIUS OF OVER 30 KNOT WINDS 150 MILES.
FORECAST POSITION FOR 230000UTC AT 21.3N 107.7E WITH 30 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
985 HPA, MAX WINDS 55 KNOTS NEAR CENTER.
FORECAST POSITION FOR 231200UTC AT 21.6N 107.2E WITH 50 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
994 HPA.
BECOMING TROPICAL DEPRESSION.

JAPAN METEOROLOGICAL AGENCY.=