WTJP21 RJTD 221800
WARNING 221800.
WARNING VALID 231800.
WARNING IS UPDATED EVERY 6 HOURS.
STORM WARNING.
SEVERE TROPICAL STORM 2404 PRAPIROON (2404) 985 HPA
AT 20.8N 107.6E GULF OF TONGKING MOVING NORTHWEST 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 230600UTC AT 21.3N 107.4E WITH 35 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
990 HPA, MAX WINDS 40 KNOTS NEAR CENTER.
FORECAST POSITION FOR 231800UTC AT 21.4N 107.0E WITH 57 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
994 HPA.
BECOMING TROPICAL DEPRESSION.

JAPAN METEOROLOGICAL AGENCY.=